Legrand LightSaver® LCD-203 Dimming Controller Installation guide

Brand: Legrand

Model: LightSaver® LCD-203 Dimming Controller

Type: Installation guide

Legrand LightSaver® LCD-203 Dimming Controller can provide automatic dimming for fluorescent and HID lighting, based on daylight contribution. It works with standard 0-10 volt dimming ballasts. It provides three control channels and can control a maximum of fifty ballasts per channel. You can also connect other devices to the LCD-203 to enhance its control capability, such as an occupancy sensor, relay panel, BAS or time clock. An optional wall switch, model LS-4C or LS-5C, allows manual dimming and ON/OFF control.

04251r2 07/2007

LightSaver

LCD-203 Daylighting

Controller

DESCRIPTION

The LCD-203 controller provides automatic dimming for

ﬂuorescent and HID lighting, based on daylight contribution.

The LCD-203 controller works with standard 0-10 volt dimming

ballasts. It provides three control channels. The LCD-203

provides dimming control for a maximum of ﬁfty ballasts per

channel.

The programmable adjustments for your application can be

easily selected and customized directly from the face of the

LCD-203. You can also observe speciﬁc system operation

directly from the controller display.

The BT-203 Power Pack powers the LCD-203 and has three

relays for ON/OFF switching, one for each channel.

The LCD-203 connects to one LS-290C photocell to detect the

incoming daylight level. Light level at the LS-290C displays on

the face of the LCD-203.

An optional wall switch, model LS-4C or LS-5C, allows manual

dimming and ON/OFF control.

Lighting Channels

Lighting channels are groups of ﬁxtures that receive about the

same daylight contribution. Typically, for a multi-channel

application, ﬁxtures nearest daylight sources are grouped

together in the same channel. Rows of ﬁxtures farther back

should be grouped together. The ﬁxtures farthest from the

daylight are grouped into the last channel. When distributed in

this manner the individual channel dimming response

adjustments allow the light level to be balanced across an area.

Control Input Options

In addition to the photocell and the wall switch, you can connect

other devices to the LCD-203 to enhance its control capability.

For example, to automatically dim and/or shut off the lights

during the unoccupied periods, an occupancy sensor, relay

panel, BAS or time clock can be wired to the LCD-203

controller. For manual control during occupied periods, you can

connect a momentary manual switch. For energy conservation

or emergency shut-down, you can connect it to a load shed

system. See the Low Voltage Wiring section for details.

1.800.879.8585

Navigation and

selection buttons

DIN Rail

Display

LightSaver

LCD-203

45 78123 129 10 116

412 653

RJ12: quick connect to BT-203

LightSaver

BT-203

1.800.879.8585

Not Used

D terminals:

0-10VDC dimming ballast control

BT-203 Power Pack LCD-203 Controller

Line Voltage

Not Used

Figure 1: BT-203 Power Pack and LCD-203 Controller on DIN Rail

Installation Instructions

CONTENTS

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Lighting Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Control Input Options . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

PHOTOCELL PLACEMENT . . . . . . . . . . . . . . . . . . . . .2

LCD-203 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . .2

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Automatic Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

On/Off Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Manual Dimming Control . . . . . . . . . . . . . . . . . . . . . . . . .2

Wall Switch (LS-4C or LS5C) . . . . . . . . . . . . . . . . . .2

Manual Dimming Operation . . . . . . . . . . . . . . . . . . .3

When starting from automat . . . . . . . . . . . . . . . . . . .3

LOW VOLTAGE WIRING . . . . . . . . . . . . . . . . . . . . . . .3

Photocell, Terminal A10, A11, A12, . . . . . . . . . . . . . . . . . .3

Ballast Dimming Control, Terminals D1-D6 . . . . . . . . . . .3

Occupancy Sensor, Terminal A8, A11, A12 . . . . . . . . . . .4

Door Switch, Terminal B9 . . . . . . . . . . . . . . . . . . . . . . . . .4

Wall Switch, Terminal B2 to B8 . . . . . . . . . . . . . . . . . . . .4

Load Shed, Terminal B12 . . . . . . . . . . . . . . . . . . . . . . . . .4

Time Switch, Terminal B11 . . . . . . . . . . . . . . . . . . . . . . . .4

Class Room Whiteboard, Terminal B10 . . . . . . . . . . . . . .4

USER MENU AND DISPLAY . . . . . . . . . . . . . . . . . . . .5

Programmable Controller Adjustments . . . . . . . . . . . . . . .5

RUN mode -vs- Programming/Diagnostic mode . . .5

How to use the Programming Guide . . . . . . . . . . . .5

Navigation Quick Guide . . . . . . . . . . . . . . . . . . . . . . . . . .5

GENERAL SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Daylight Factor Submenu . . . . . . . . . . . . . . . . . . . . .7

Adjust Settings Submenu . . . . . . . . . . . . . . . . . . . . .8

Adjust Ch# Submenu . . . . . . . . . . . . . . . . . . . . . . . .8

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . .10

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .10

ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . .10

PHOTOCELL PLACEMENT

In applications where windows

are the primary source of

daylight, the LS-290C photocell

typically mounts on the ceiling

between the window and the

ﬁrst row of ﬁxtures. For skylight

applications, the photocell

mounts in the lightwell. The

photocell is aimed toward the

daylight. Maximum wire

distance from the controller to

the photocell is 250 feet.

You need a light meter to

measure light levels at task

areas.

See the LS-290C Photocell

installation instructions for

information about placement,

mounting and testing.

LCD-203 INSTALLATION

1. The LCD-203 controller mounts onto a DIN rail inside of an

electrical enclosure rated for the application. Typically, a NEMA 1

rated enclosure such as the Watt Stopper LS-E8 is used. One

LCD-203 and one BT-203 can be mounted in an LS-E8.

2. All wiring connected to the LCD-203 is low voltage. Low voltage

wiring must be separated from line voltage wiring. Low voltage

wiring must enter the enclosure through knockouts separate from

high voltage wiring.

• Switch and sensor wires terminate at the terminal strips on the

top rows (labeled A and B).

• Ballast control wires terminate on the bottom row (labeled D).

• Wire all devices to the LCD-203 before connecting it to the

power pack or making any adjustments or program changes.

See the Low Voltage Wiring section for information about wiring

each device.

• Use the quick connect cable supplied with the LCD-203 to

connect it to the BT-203 Power Pack.

Figure 3: Wiring terminal locations

Adjustments

The display and buttons on the face of the LCD-203 allow you to

make various system adjustments. The LCD-203 comes with 3 pre-

programmed applications. Each application has factory default

settings. Depending on the circumstances of your installation,

adjustments may not be necessary. Program adjustments allow you to

set the speeds at which lights are raised or lowered, the maximum

and minimum lighting output levels, and other options. See the

Controller Adjustments and Display section for details.

1.800.879.8585

"B" Terminals

"A" Terminals

LightSaver

LCD-203

45 78123 12910116

412 653

RJ12: quick connect to BT-203

LightSaver

BT-203

1.800.879.8585

Not Used

"D" terminals

Line Voltage

Terminals 1-8

Not Used

LCD-203: Low Voltage

BT-203: High Voltage

OPERATION

Automatic Dimming

When in Automatic mode, the LCD-203 system adjusts the lights in

each channel based on the amount of daylight measured by the

photocell. The LCD-203 automatically calculates the ratio of dimming

to daylight contribution to meet the programmed light level

requirements.

The LCD-203 provides a 0-10 volt control signal to the ballasts in

each channel. A 10 volt signal commands the lights to their full output

and a 0 volt signal commands the lights to their minimum output. The

outputs for each channel automatically raise or lower based on the

light level and daylight factors programmed, as well as each channel’s

minimum and maximum control output levels, and fade and ramp rate.

In a typical application, the channel closest to the window or skylight

gets the most daylight. The lights in this channel are dimmed most

aggressively. Channels farther from the window or skylight get less

light from daylight and more electric light is needed to maintain the

required light levels.

On/Off Switching

The BT-203 provides ON/OFF switching based on the combined

requirements of daylighting, occupancy, time clock and manual control

inputs to the LCD-203. The three normally open relays built into the

BT-203 Power Pack are closed whenever the LCD-203 determines

that the electric lights are required.

Full Daylight: The contacts open if the LCD-203 determines that

there is sufﬁcient daylight in a channel and no supplemental electric

light is needed.

First, the channel must dim to the programmed minimum output. Then

the channel’s programmable

Cut off

timer begins. If the channel

remains dimmed to minimum for the duration of the timer, the contact

opens. The contact closes again when the daylight has decreased

sufﬁciently to require additional light in the channel.

Manual Off: When the wall switch is used, the contacts open to

switch the lights OFF. With the LS-4C, press the I/O button or the

Auto button to close the contacts. With the LS-5C, press the On/Off

button to change from automatic to manual mode and open the

contacts.

Time Clock Interlock: When the LCD-203 receives a contact closure

at terminal B11, it signals an unoccupied period. The unoccupied

signal immediately opens the contacts for all three channel relays.

This turns lights OFF and holds them OFF until the Time Clock

Interlock contact opens.

End of Occupancy: When the occupancy sensor’s internal delay

expires and it removes the occupancy signal from the LCD’s terminal

A8, a one-minute delay timer starts. If there is no occupancy signal

when the delay expires, the dimming output signal from the LCD-203

drops to the minimum programmed output for each channel. The

dimming output remains at this level for the duration of the cutoff timer

if there is no occupancy signal, then the lights turn off.

NOTE: The LCD’s low voltage control signal to the ballast remains on

at the lowest programmed level for each channel until the BT-203 line

voltage relay for every channel is OFF, then it drops to 0 volts.

Manual Dimming Control

The LS-4C and LS-5C are optional wall switches that provide manual

override of all channels in unison. Once manually set, the lights

remain at that level until the LCD-203 resumes Automatic operation.

To resume Automatic operation you simply press and release the Auto

button on the wall switch. For another way to return the LCD-203 to

Automatic mode, see LOW VOLTAGE WIRING, Occupancy Sensor,

on page 4.

Wall Switch (LS-4C or LS5C)

The LED next to the Auto button lights when the LCD-203 is dimming

in automatic mode. The LED next to the I/O or On/Off button lights

when the LCD-203 is in manual mode. Both LEDs are off when in

programming or diagnostic mode or when the time clock signal is

present. See Figure 7 and 7a or the instructions that came with the

switch for wiring instructions.

Peak

Sensitivity

LS-290C

Light Fixture

Window

45°

Figure 2: Photocell placement for a

window application

page 2

page 3

Call 800.879.8585 or 972.578.1699 for Technical Support

LOW VOLTAGE WIRING

Photocell, Terminal A10, A11, A12,

The LS-290C photocell provides daylight contribution measurements

to the LCD-203. There are two versions of the photocell. The only

difference between versions is the way they connect to the controller.

Connect the photocell to the LCD-203 as shown in Figure 5 or 5a, as

appropriate. If you are NOT installing an occupancy sensor, put a wire

jumper between terminals A8 and A11.

For photocell placement and installation, see page 2 of this manual

and the Installation Instructions provided with the photocell. For

programming and adjustment information, see the User Menu and

Display,

ADJUSTMENT

Daylight Factor

section of this manual.

Ballast Dimming Control, Terminals D1-D6

The LCD-203 provides 0-10VDC output to the ballast dimming control

inputs. As shown in Figure 5, terminals D1-D2 control Channel 1,

D3-D4 control Channel 2, D5-D6 control Channel 3. Each channel

can control up to 50 dimming ballasts.

Line voltage and ON/OFF relay control to the lighting ﬁxture is

provided by connecting the ﬁxture to the BT-203 Power Pack. See

On/Off Switching on page 2 of this manual and the BT-203 Installation

Instructions for more information.

LightSaver

LCD-203

78 1291011

45 78123 12910116

Original

LS-290C

Photocell

123

to A12

to A11

to A10

Jumper from A8 to A11

if no occupancy sensor

Figure 5: LS290C v2 Photocell and ballast dimming control wiring

Manual Dimming Operation

When starting from automatic mode (Auto LED is on), there are

two ways to initiate manual dimming:

1. Press and release the I/O (On/Off) button on the switch. The

Manual (I/O or On/Off) LED goes on. If the lights were previously:

• ON but dimmed, all channels go to maximum programmed

output.

• OFF (BT-203 relay open), all relays close and channels go to the

maximum programmed output.

-or-

2. Press and hold the (Lower) button to dim or (Raise) to raise

the lights.

The Manual (I/O or On/Off) LED goes on.

If lights were previously OFF (BT-203 relay open), all relays close.

All channels ramp up or fade down equally from their present level

until you release the button or they meet their programmed

maximum or minimum output levels.

When starting from manual mode (I/O or On/Off) LED is on):

If lights are ON:

• Pressing the (Lower) button fades all channels down equally

from their present level until you release the button or they meet

their programmed minimum output levels.

• Pressing the (Raise) button ramps up all channels equally

from their present level until you release the button or they meet

their programmed maximum output levels.

• Pressing the I/O (On/Off) button turns all the lights OFF.

(BT-203 relays open and the dimming output goes to 0VDC.)

If lights are OFF:

• Pressing the (Lower) button closes the BT-203 relays and the

dimming output goes to the minimum programmed output.

•Pressing the (Raise) button closes the BT-203 relays and the

lights ramp up equally from their present level until you release

the button or they meet their programmed maximum output

levels.

• Pressing the I/O (On/Off) button turns the lights ON

(BT-203 relays close and the dimming output goes to the

maximum programmed output.)

Auto

l/O

LED on:

Automatic

LED on:

Manual

Raise

lights

Lower

lights

Set to

Automatic

Set to

Manual &

ON/OFF

toggle

Figure 4: Wall Switch controls

LightSaver

LCD-203

1.800.879.8585

78 1291011

45 78123 12910116

412 653

LS-290C v2

Photocell

Jumper from A8 to A11

if no occupancy sensor

0-10V

Violet

Gray

More Chan 1

Ballasts

(up to 50)

0-10V

Violet

Gray

0-10V

Violet

Gray

More Chan 2

Ballasts

(up to 50)

0-10V

Violet

Gray

0-10V

Violet

Gray

More Chan 3

Ballasts

(up to 50)

0-10V

Violet

Gray

123

to A11

to A12

to A10

Figure 5a: Original LS290C Photocell wiring (no version mark on unit)

see Figure 5 for ballast wiring

On / Off

Auto

Raise

Lower

LS-4C

LS-5C

Class Room Whiteboard, Terminal B10

This terminal is only

functional as an ON/OFF

switching device when the

Class Rm application is

programmed and Channel

3 is activated (see

programming for

GENERAL

SET->Channels 3Ch

Time Switch, Terminal B11

Open contact: Occupied

period. Lights respond to

sensor and switch inputs.

Closed contact:

Unoccupied period. Turns

lights OFF and holds lights

OFF. The controller ignores

all other control signals

(such as LS-4C, manual

switches, photocell,

occupancy sensor, load

shed).

LightSaver

LCD-203

78 1291011

45 78123 12910116

Time Switch or Relay Panel or BAS

Common

to B2

to B11

Jumper from A8 to A11

if no occupancy sensor

LightSaver

LCD-203

78 1291011

45 78123 12910116

Common to B2

Momentary Manual

Whiteboard Switch

(Class RM only)

to B10

Jumper from A8 to A11

if no occupancy sensor

Load Shed, Terminal B12

Open contact: Normal operation.

Closed contact: If

automatic dimming is active

and lights are on with a

control output greater than

the level programmed in

Adjustment> Adjust Ch#

> Loadshed #

, the lights

will dim to the programmed

load shed level and hold

there. If daylight levels

increase, the control output

will be further reduced.

LightSaver

LCD-203

78 1291011

45 78123 12910116

Common

to A12

Load Shed System

to B12

Jumper from A8 to A11

if no occupancy sensor

Wall Switch, Terminal B2 to B8

LightSaver

LCD-203

78 1291011

45 78123 12910116

LS-4C Switch

Auto

I/O

Red to B8

Brown to B7

Blue to B5

Green to B2

Black to B3

White to B4

Orange to B6

Figure 7: LS-4C wiring

Figure 9: Time switch wiring

Figure 8: Class room whiteboard

switch wiring

Figure 10: Load shed wiring

Occupancy Sensor, Terminal A8, A11, A12

An occupancy sensor can be connected to the controller

so that when no occupancy is detected, lights dim then

turn off. See Figure 6 for wiring.

You can program the controller to either turn on the lights

automatically at the beginning of occupancy, or so that the

lights must be manually turned on with the wall switch.

When the controller is programmed for an Auto On

application, if the occupancy sensor detects occupancy,

the LCD-203 controller goes into Automatic mode to turn

on lights and dim them as needed.

When it is programmed for a Manual On application, once

the lights are turned on by a switch, the occupancy sensor

signal holds the lights on.

If the LCD-203 is in Manual mode when the occupancy

signal is removed:

• The lights stay on at their current level for one minute

then they shut OFF.

• When the occupancy signal returns, the LCD-203

controller returns in Automatic dimming mode.

If the LCD-203 is in Automatic dimming mode when the

occupancy signal is removed:

• The lights stay on at their current level for one minute

then they begin to dim according to the

Fade Rate

for

each channel. When the output reaches minimum, the

Cut off

delay timer begins for each channel. As each

channel’s timer expires, the lights go OFF in that

channel.

Door Switch, Terminal B9

This terminal is functional as an ON/OFF switching device

when the Manual On or Class Rm application is

programmed.

When the Momentary Manual Switch operates it toggles

the state of the BT-203 relays.

If automatic dimming is active and lights are on, control

output drops to 0.0VDC. If automatic dimming is active and

lights were shut off with the switch, activating it again

resumes automatic dimming level.

Do not use this input if the controller is programmed for

the Auto On application.

LightSaver

LCD-203

78 1291011

45 78123 12910116

Control Output

to A8

24VDC

to A11

Common

to A12

24VDC Occupancy

Sensor

Momentary

Manual

Door

Switch

Common

to B2

to B9

Figure 6: Occupancy sensor and door switch wiring

page 4

For operation see

the Manual

Dimming Control

chapter on pages

2-3 and the

Instructions

provided with the

wall switch.

45678123

LCD-203

Wire colors shown are

Belden 8467 or equivalent

7-conductor 18 AWG cable

P2 (Red) to B8

S2 (White) to B4

S1 (Black) to B3

COM (Green) to B2

S3 (Blue) to B5

S4 (Orange) to B6

P1 (Brown) to B7

45678123

LS-5C

Figure 7a: LS-5C wiring

USER MENU AND DISPLAY

The user menu display and navigation buttons on the face of the

LCD-203 give you access to two menus of programmable controller

adjustments and two menus of real-time system operation data.

Programmable Controller Adjustments

There are two programming sections.

GENERAL SET

, is used to

determine the overall parameters of the system.

ADJUSTMENTS

, lets

you customize parameters for each lighting control channel.

RUN mode -vs- Programming/Diagnostic mode

When the controller is powered up and no buttons have been pushed

recently, the screen shows

The Watt Stopper

along with the current

photocell light level reading. The photocell readings dynamically

update. For an example, see the illustration below.

Pressing any button on the LCD-203 puts the controller into the

programming/diagnostic mode. When in this mode:

• Switch inputs are ignored

• LEDs on the LS-4C or LS-5C wall switch are off

• The LCD-203 continues to monitor light levels at the photocell

• The LCD-203 continues to dim lights

To exit the programming/diagnostic mode and return to the RUN

mode, press the  key repeatedly until

The Watt Stopper

shows in

the display. The programming/diagnostics mode will also automatically

time out and return the controller to RUN operation after 5 minutes

without a button press.

GENERAL SET



RUN SEE





ADJUSTMENT



BACK SEE





STATUS



BACK SEE





TERMINAL DATA



BACK SEE



Type Auto On



EXIT NEXT



ADJ



Daylight Factor



EXIT NEXT



ADJ



Ch1 ON



EXIT NEXT



PIR unocc



EXIT NEXT



Navigation Quick Guide

ADJ

Adjust the programming for this item or submenu.

BACK

Go back to the previous main menu title.

ESC

Abandon the current selection, do not save

change, return to last saved selection.

EXIT

Leave this screen and go back one menu or

submenu level.

Advance to the next menu or program item without

leaving the current program level.

RUN

Return the controller to normal operation.

SAVE

Save changes to this selection and show the new

selection on the screen.The controller powers up

after saving

GENERAL SET->Type

and other items.

SEE

View the program items within a menu.

LightSaver

LCD-203

1.800.879.8585

The Watt Stopper

0085fc

RUN Mode: The numbers in the display indicate the current light level

(in footcandles) at the LS-290C Photocell.

Press any button to enter the programming/diagnostic mode.

To other

GENERAL

Items

To other

ADJUSTMENT

Items

To other

STATUS

Items

To other

TERMINAL DATA

Items

How to use the Programming Guide

In this manual,

This Kind of Typeface

indicates the text that

appears in the display.

When you see an arrow (

) between words, it means to advance the

display to another level to see the next program item listed. Typically

you will press the  or  button to advance to that level, but you

may need to press  or  to get there, depending on where you are

inside the program.

The illustration below shows the top level of the programming/

diagnostics menu and the ﬁrst program item within each section. The

details of each program item, selection and diagnostic tool will be

described in the sections that follow.

page 5

}

PROGRAMMING

}

DIAGNOSTIC

GENERAL SET



BACK SEE





Type Auto on



EXIT NEXT



ADJ



Channels 1Ch



EXIT NEXT



ADJ



Run Test Mode?



EXIT YES



Auto on

The light switches on when the occupancy sensor detects occupancy and there is

a need for electric lights. While the sensor detects occupancy, the LCD-203

automatically controls the electric lights using

Daylight Factor

adjustment

programming. As daylight increases, the light dims to maintain the minimum light

level setpoint for each channel. At the end of occupancy, the lights dim then turn

off.

Manual on

The light must be manually turned on using a momentary manual switch or the

I/O (On/Off) button on the LS-4C or LS-5C. When the switch input is received, the

LCD-203 goes into automatic mode and the lights come on if needed. When the

LS-4C or LS-5C is used, you must press the Auto button to put the LCD-203 into

automatic mode. As long as there is an occupancy signal (from an occupancy

sensor, time clock or BAS) or until the switch is pressed again to turn the lights

off, the LCD-203 automatically controls the electric lights using daylight factor

programming.

Class RM

(Class Room) Works like the Manual On application, but with channels 1 and 2

available for dimming control and channel 3 dedicated to ON/OFF control of a

whiteboard light with a dedicated switch.

During the test mode, the controller only responds to input from the photocell. All other switch

and control inputs are ignored. Lights will dim according to Daylight Factor programming. Test

Mode bypasses the time delays programmed in each channel’s

Cut off

timer for switching off

the electric lights when daylight is contributing 100% of the programmed setpoint.

When you exit test mode, the controller resets and may turn off the lights momentarily.

Selections

Auto on

Manual on

Class RM

1Ch

2Ch

3Ch

Powerup System

Please wait

Sets the number of active channels. The output and channel information displayed for

operational, diagnostic and programming purposes is determined by this setting.

NOTE: If

Type

(above) is set to

Class Rm

, you must set this item to 3 channels for whiteboard

switch operation. No programming items or status will display for channel 3.

In Test Mode



EXIT

GENERAL SET

, you select the type of application

and the number of channels. This menu also

provides access to the LCD’s

Test Mode

page 6

The LCD-203 comes with three basic application types already saved in its memory. The

program items are the same for each application type, but the entry selections are different,

depending on how the programmable feature is used in the application.

page 7

ADJUSTMENT

In ADJUSTMENT you set the daylight factors and

select individual operating parameters for each channel.

This menu also provides a way to save application

settings for future use and a way to restore the factory

defaults. There are three submenus within

ADJUSTMENT as shown below.

The program items for each submenu are described in

the sections that follow.

ADJUSTMENT



BACK SEE





Daylight Factor



EXIT NEXT



ADJ



Adjust Ch#



EXIT NEXT



ADJ



Adjust Settings



EXIT ADJ



Range 30-3000fc



EXIT NEXT



ADJ



Select the light level range that matches the jumper setting on the LS-290C

Photocell. The default for both the LCD-203 and the LS-290C is 30-3000fc.

If the expected maximum light at the photocell is:..........Set

Range

for:

less than 250fc (darker locations)......................................3-300fc

more than 250fc, less than 2800fc (typical)...................30-3000fc

more than 2800 (inside skylight lightwell)......................60-6000fc

Selections

3-300fc

30-3000fc

60-6000fc

Enter information about the photocell and the light level at the task area for

each channel. See

Daylight Factor

Submenu for a description of each

program item. Entries in this submenu are mandatory.

Set each channel’s reaction to various system inputs. See

Adjust Ch#

Submenu for a description of each program item.

# Each channel enabled in the GENERAL SET menu is programmed in

a separate submenu for that channel. In a

Class Rm

application, channel

3 is dedicated to an ON/OFF switch at the whiteboard, so no

programming adjustments are presented.

Use this item to save your program selections, or to have items return to

the factory defaults.

Daylight Factor Submenu

Theses entries allow the LCD-203 to calculate the ratio

of dimming to the amount of daylight contributing to the

illumination of the channel. This relationship is

determined by light meter measurements at the task

level for each channel and the light received at the

LS-290C Photocell.

Daylight Factor



EXIT NEXT



ADJ



Adjust Ch1

Task FC1 20fc



ADJ



Select the light level that matches the light meter measurement you took at

the task level for Channel 1. The default is 20fc.

5fc

100fc

Task FC2 20fc



ADJ



Select the light level that matches the light meter measurement you took at

the task level for Channel 2. The default is 20fc.

5fc

100fc

Task FC3 20fc



ADJ



Select the light level that matches the light meter measurement you took at

the task level for Channel 3. The default is 20fc.

5fc

100fc

If Channel 2

is available

If Channel 3

is available

Photocell 0467fc



EXIT ADJ



When you press ADJ, the display captures the light level currently

measured at the LS-290C photocell. You can manually adjust the setting if

necessary. For example, if you manually recorded the photocell light level at

the time the measurements were taken at the task level, you may want to

enter that level, rather than the level at the present time. (The available

selections vary depending on the photocell

Range

.) The

Photocell

entry

MUST be greater than the

Task FC

entry for each channel, otherwise a

Daylight Factor error message appears in the

STATUS

menu.

3fc

6000fc

When you program Daylight Factor, use a light meter to measure

the light level at a representative task area for each dimming channel. Make

note of the photocell light level reading at the time that the task level

readings are taken.

Adjust Ch# Submenu

Each channel has its own submenu. (To select the

number of channels in your system, see

GENERAL SET >

Channels

Setp1 36fc



EXIT NEXT



ADJ



Select the light level setpoint for the Channel indicated. This sets the target

setpoint to maintain when automatically dimming. When set for OFF or ON,

the lights assume and maintain that state when in automatic and an

occupancy signal is present.

Selections

OFF

5fc to 60fc

Vout min1 1.0V



EXIT NEXT



ADJ



Select the minimum dimming control output voltage. When the area is

occupied, the output voltage will not go below this level.

0.0VDC

4.0VDC

Vout max1 10.0V



EXIT NEXT



ADJ



Select the maximum dimming control output voltage.When the area is

occupied, the output voltage will not go above this level.

6.0VDC

10.0VDC

Ramp up1 05S



EXIT NEXT



ADJ



Set the number of seconds it takes to ramp from the minimum dimming

countrol output level to the maximum output level. The default is 5 seconds

because normally you want to light the room quickly.

5 to 60

seconds

Fade down1 60S



EXIT NEXT



ADJ



Set the number of seconds it takes to fade from the maximum dimming

countrol output level to the minimum output level. The default is 60 seconds

because normally you want the room to darken slowly.

5 to 60

seconds

Adjust Ch1



EXIT NEXT



ADJ



To:

Adjust Ch2

Adjust Ch3

and

Adjust Settings

Cut off1 12M



EXIT NEXT



ADJ



Set the number of minutes after the channel dims to minimum that the

lights will shut off (BT-203 relay opens).

0 to 20

minutes

or inﬁnity

Loadshed1 10.0V



EXIT ADJ



Set the maximum control output level to use during Load Shed events.

Load shed events are triggered by an input from a BAS or other load shed

signalling device connected to LCD-203 terminal B12.

0.0VDC

10.0VDC

After you adjust Channel 1, if more channels are available, their submenus

appear in the display after you

EXIT

the ﬁrst

Adjust Ch

submenu. If no

more channels are available, the display advances directly to the

Adjust

Settings

submenu when you exit the channel.

Copy Settings?



EXIT ADJ



Custom->Backup?



COPY ADJ



ESC



Adjust Settings



EXIT ADJ



Adjust Settings Submenu

These program items allow you to make a backup copy of

the

ADJUSTMENT

programming, restoring from the backup,

and returning to factory defaults.

The LCD-203 displays the current

ADJUSTMENT

settings in

a program called “Custom.”

Backup->Custom?



COPY



ADJ



ESC



Factory->Custom?



COPY



ADJ ESC



Display pauses and

responses are delayed

during copy process

When you select COPY, here is what happens for each function:

Custom->Backup

: Makes a backup copy of the

ADJUSTMENT

menu settings

currently operating in the controller.

Backup->Custom

: Replaces the current controller

ADJUSTMENT

settings with the backup copy.

Factory->Custom

: Restores the factory default settings for all items in the

ADJUSTMENT

menu.

page 8

If you need to test an alternate set of adjustments, you may save time by

making a backup copy of the current settings, changing the desired

settings, then testing. If you want to return to the previous settings, you can

restore the settings from the backup copy.

If you need to return to the

ADJUSTMENT

default settings originally

programmed, you can copy the Factory program into the current “Custom”

program.

}

The

Adjust

program items repeat in submenus for

Channel 2 and Channel 3, if the channels are enabled.

page 9

Diagnostics

There are two menus that provide real-time data about the system’s

current state.

The

STATUS

menu gives information about the ballast channel outputs

at the BT-203 power pack and the LCD-203 terminal D. It also

displays the daylight factor calculated by the LCD-203 for each

channel.

Note: No status is displayed for Channel 3 in the

Class RM

application.

STATUS



BACK SEE





Ch1 ON



EXIT NEXT



Ch2 ON



EXIT NEXT



Ch3 ON



EXIT NEXT



Vout1 <1.0V



EXIT NEXT



Vout2 7.0V



EXIT NEXT



Vout3 10.0V



EXIT NEXT



Df1 10.00%



EXIT NEXT



Df2 10.00%



EXIT NEXT



Df3 20.00%



EXIT

Shows the ON/OFF

status of the BT-203

power pack relay

associated with each

channel enabled in the

program.

Shows the control

voltage output level to

each ballast channel.

Shows the Daylight

Factor the LCD-203

calculated for each

channel. Higher numbers

indicate more daylight

contribution. To adjust

values such as photocell

light level and channel

setpoints, see the

ADJUSTMENT

menu.

If an ERROR message

appears, check

programming for

Photocell

and

Task FC

Data

Format

ON or OFF

Data

Format

numeric

volts DC

<1.0

10.0

Data

Format

0.16% to

98%

TERMINAL DATA



BACK SEE



PIR unocc



EXIT NEXT



Photocell 0427fc



EXIT NEXT



Auto#3 lo



EXIT NEXT



Manual#4 lo



EXIT NEXT



Dim up#5 lo



EXIT NEXT



Dim down#6 lo



EXIT NEXT



Door#9 lo



EXIT NEXT



Whiteboard#10 lo



EXIT NEXT



Time#11 lo



EXIT NEXT



Occupancy sensor input

indicates “occupied” or

“unoccupied”.

Data

Format

occ or

unocc

Auto LED on



EXIT NEXT



Manual LED on



EXIT

numeric

footcandles

lo to hi

Current light level at the

photocell.

Wall switch Auto button

input at terminal B3.

Wall switch I/O or On/Off

button input at terminal B4.

Wall switch or Raise

button input at terminal B5.

Wall switch Lower button

input at terminal B6.

Momentary switch input at

terminal B9. (Not available

Auto On

application.)

Switch input at terminal

B10. (Only available in

Class RM

application.)

Clock, relay or panel input

at terminal B11.

Tests the Auto LED on the

wall switch. Viewing this

screen turns LED on.

Tests the Maunal LED on

the wall switch. Viewing this

screen turns LED on.

Loadshed#12 lo



EXIT NEXT



lo to hi

Load Shed signal from BAS

or other load shed control at

terminal B12.

The

TERMINAL DATA

menu gives information about switch and sensor

inputs at terminal A and B. This menu is very helpful in verifying wiring

connections. When you activate the device connected to the input, the

change of state is held in the display until you acknowledge it by

advancing through the menu.

SPECIFICATIONS

UL and cUL Listed

Class 2

Input

Supply voltage:

Provided by BT-203 Power Pack............................................24VDC

Operating characteristics

Control output voltage to ballasts............................................0–10VDC

Programmable features:

Minimum output setting......................................................... 0-4VDC

Maximum output setting.......................................................6-10VDC

Fade and Ramp Rate...................................................5–60 seconds

Cut off delay...................................................0-20 minutes, or inﬁnity

Maximum Sink ...........................................................50mA per channel

Maximum Source.........................................................3mA per channel

Maximum Ballasts...........................................................50 per channel

ORDERING INFORMATION

Catalog # Description

BT-203 3-Relay Power Pack, input: 120–277VAC 50/60Hz

LCD-203 Indoor daylighting controller, 3-channel, 24VDC

LS-290C Photocell, 3-6000 footcandle range

LS-4C Wall Switch

LS-5C Wall Switch

LS-E8 8 inch square NEMA type 1 enclosure with cover,

includes 1 DIN rail

LS-E12 12 inch square NEMA type 1 enclosure with cover,

includes 2 DIN rails

2800 De La Cruz Boulevard, Santa Clara, CA 95050 • Technical Support: 800.879.8585

www.wattstopper.com

04251r2 07/2007

TROUBLESHOOTING

The lights do not dim automatically when daylight levels are

high enough for dimming to occur.

• Verify that the LCD-203 system is operating in Automatic mode

(refer to the “Operation” section).

• Check photocell light level reading on the controller display.

• Verify that the photocell is positioned properly (refer to the

“Installation” section, and the separate photocell instructions).

The lights are fully dimmed or off when you expect them to be

on.

• Verify that the LCD-203 is powered. The display on the Controller

Module will have text when the unit is powered.

• Verify that the occupancy signal is present (24VDC at terminal 8).

• Verify that the time clock signal is in occupied mode. (There must

not be closure between terminals B2 and B11.)

Not enough light in a channel.

• Check the control voltage output to the channel. It is programmed

ADJUSTMENT > Adjust Ch# > Vout max#

. Set the output to a

higher level.

• Check the footcandle setpoint programmed in

ADJUSTMENT >

Adjust Ch# > Setp#

. If it seems low, enter a higher number.

• Retake the light meter readings at the task level. Check program

settings in the

ADJUSTMENT > Daylight Factor

program. Enter

new data into the program as necessary.

• Check the photocell light level reading. If it is less than 225fc during

sunny conditions, the range should be set to 3-300fc. Set the

jumper position on the LS-290C photocell and the

Daylight

Factor > Range

setting in the LCD-203 to 3-300fc.

• Verify that the photocell is installed correctly. The photocell should

be installed on the room side of curtains or blinds and should view

the daylight that is entering the area.

The lights will not turn on.

• Verify that power is present to the ballast and that it has not been

switched off at the breaker or by a wall switch.

• Verify line voltage wiring connections to the BT-203.

• Make sure the quick connect cable is connected between the

LCD-203 and BT-203.

• Verify switch and sensor wiring to the LCD-203.

ERROR

message in the STATUS display instead of

Df# %

The programmed

Task FC

for the channel is higher than the

programmed

Photocell

measurement. Go to:

WARRANTY INFORMATION

Watt Stopper/Legrand warranties its products to be free of defects in

materials and workmanship for a period of ﬁve (5) years. There are

no obligations or liabilities on the part of Watt Stopper/Legrand for

consequential damages arising out of, or in connection with, the use

or performance of this product or other indirect damages with respect

to loss of property, revenue or proﬁt, or cost of removal, installation or

reinstallation.

GENERAL SET



RUN SEE





ADJUSTMENT



BACK SEE





Daylight Factor



EXIT NEXT



ADJ



Range 30-3000fc



EXIT NEXT



ADJ



Task FC1 100fc



ADJ



Task FC2 20fc



ADJ



Task FC3 20fc



ADJ



Photocell 080fc



EXIT ADJ



Notice that in this example,

Task FC1

set very high at 100fc.

Check the

Photocell

setting. It is very

low at 80fc.

• Consider adjusting

Task FC1

to a

lower setting.

• Adjust the

Photocell

setting.

Please

Recycle

Legrand LightSaver® LCD-203 Dimming Controller Installation guide

Legrand LightSaver® LCD-203 Dimming Controller Installation guide

Legrand LightSaver® LCD-203 Dimming Controller Installation guide

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