COSYS R 6H Regulator
Operating instructions
EN
Contents
EN
GENERAL SAFETY AND USAGE
INSTRUCTIONS __________________________________3
Preliminary operations ___________________________3
Warning _______________________________________3
Risk of electrocution, burns or explosion ____________ 3
GENERAL POINTS________________________________4
Functions ______________________________________4
Technical data __________________________________5
Front panel _____________________________________ 6
Diagram _______________________________________7
Fitting connections ______________________________8
COMMISSIONING ________________________________9
Quick commissioning stage _______________________ 9
Configuration __________________________________10
Displays ______________________________________13
REPAIRING _____________________________________14
COSYS R 6H Regulator - Ref.: 539971A
3
COSYS R 6H Regulator
GENERAL SAFETY AND USAGE
INSTRUCTIONS
Preliminary operations
Warning
Risk of electrocution, burns or explosion
For personnel and product safety please read the
contents of these operating instructions carefully before
connecting.
The following points should be checked when you
receive the product:
• The condition of the packaging and the product,
• the product has not been damaged during transit,
• the product reference number conforms to your order,
• the package contains the product fitted with a pull-out
terminal block,
• the operating instructions.
This equipment must be mounted only by professionals.
The manufacturer shall not be held responsible for failure
to comply with the instructions in this manual.
• the device must be installed and serviced only by
qualified personnel
• prior to any work on or in the device, isolate the voltage
inputs and short-circuit the secondary winding of all
current transformers (if no PTI is fitted) and disconnect
the auxiliary power supply of the device
• always use an appropriate voltage detection device to
confirm the absence of voltage
• put all mechanisms, door and covers back in place
before powering up the device
• always supply the device with the correct rated
voltage.
Failure to take these precautions could cause serious
injuries.
4
COSYS R 6H Regulator - Ref.: 539971A
Functions
• Alarms for the following parameters:
- overvoltage protection
- programmable overvoltage (from 1.05 to 3x Irms)
- under-compensation
- harmonic level
- number of switchovers
- measurement voltage too low
- faulty current measurement
• Configurable compensation curve (with inflection
point)
• Identification of cabling errors
• Operating in four quadrant mode and indication of the
quadrant in use
• Floating potential contacts
• Automatic or manual switching of each stage
• Adjustable target power factor from 0.8 lagging to 0.9
leading in 0.01 increments
• Configurable fixed power factor correction (3 first
stages maximum)
• Display:
- Apparent current
- Active current
- Reactive current
- Number of switch movements
- Power factor
- Harmonics 5, 7, 11 and 13
- Total reactive power used
GENERAL INFORMATION
COSYS R 6H Regulator - Ref.: 539971A
5
COSYS R 6H Regulator
Connection type: Voltage connection from phase
to phase or neutral. Current identified via a current
transformer. (see diagram on page:7)
Mains voltage:
Mains voltage Network voltage Permissible limit values
230 VAC 220 VAC to 240 VAC 198 VAC to 264 VAC
400 VAC 380 VAC to 420 VAC 342 VAC to 462 VAC
Voltage measured: 100VAC to 690 VAC
Frequency: 50Hz/60Hz (+/- 2Hz)
Voltage consumption of the feed: 11 VA max.
Current input: via TC /1A or /5A
Current consumption of mains feed: 1.8VA max for a
nominal current of 5A
Number of output contacts: 6 dry contacts
Output contact voltage endurance: 380VAC
Maximum inrush current: 2 x 5A
Maximum inrush power: 1800 VA
Alarm signal switch: 250VAC 3A
Voltage dip: If mains power is lost for more than 15 ms,
the supply switches will be actuated. When it returns,
the switches will connect the stages needed for the
network.
Current loss: If the current signal is lost for more than 3
seconds, the supply switches will be actuated. When it
returns, the switches will connect the stages needed for
the network.
Programming: 4 buttons front panel
Display: 12 LEDs, 4 ½ seven-segment displays
Temperature range: -25°c to +60°c
Casing: fireproof black plastic according to UL-94 V0
Assembly: Mounted on front panel with screws
(included)
Dimensions: 144 x 144 mm
Recess dimensions: 138 x 138 mm
Depth: 40 mm
Weight: approx. 0.9 Kg
IP rating: IP54 for the unit and IP20 for the terminals
Technical data
GENERAL INFORMATION
6
COSYS R 6H Regulator - Ref.: 539971A
Front panel
COSYS R 6H
A
Harm
Cos ϕ
MANUAL
ALARM
IP < 0
1 23456
Harm
PROG
AUT
MAN
S
PQ
1. Display area.
2. Display of lagging or leading operation.
3. Indicator of the type of data displayed.
4. Indication of the stages activated.
5. Indication of the alarms and operating modes.
6. 4-button keypad.
3
6
1
2
4
5
GENERAL INFORMATION
COSYS R 6H Regulator - Ref.: 539971A
7
COSYS R 6H Regulator
Diagram
PTI
0V230V
(140°)
(140°)
(30°)
FAN
230V
0V
Wiring diagram for COSYS R 6H
(1) We would advise fitting a PTI (current transformer
automatic short-circuiter) to the current transformer
secondary to prevent any electrical risks when the
current transformer is disconnected (current transformer
and PTI not supplied).
(2) Only on versions with harmonic filtering.
(3) Ventilation, depending on the model.
(2)
(1)
(3)
GENERAL INFORMATION
8
COSYS R 6H Regulator - Ref.: 539971A
Assembly and connection
The regulator can be embedded. The cut-out to be
made in the mount (max. thickness: 10 mm) is 138 x
138 mm. The screws supplied with the regulator must
be used to maintain the class II protection.
Current transformer connection: to ensure the load
to the current transformer's secondary is as low as
possible, the cables must have a minimum cross-
section of 2.5 mm². The measured current should not
exceed 5A.
Voltage measurement connection: it is possible to sepa-
rate the feed voltage from the measurement voltage
(for example for readings on the HVA/HVB network).
In all cases, it is important to protect this input with an
external fuse.
Alarm switch: a dry contact for alarm activation is avai-
lable on the a/b alarm terminals. The switch closes if
there is no voltage or an alarm is active on the regulator.
If an alarm is activated, an indicator LED will light up
on the front panel ("alarm" LED) and the correspon-
ding fault will flash on the regulator's display. The alarm
switch can withstand 3A at 250 VAC.
Control contacts: Terminals "PI" and "PII" allow connec-
tion to the control voltage of the switches. These
contacts are easily assimilated with dry contacts.
In order to avoid overloading control contacts, the sum
of the currents to hold the switch coils in the closed
position must not exceed a maximum value of 5 A. The
control voltages must not exceed 380 VAC.
GENERAL INFORMATION
COSYS R 6H Regulator - Ref.: 539971A
9
COSYS R 6H Regulator
Quick commissioning step
1) Ensure the regulator is correctly connected.
2) Power up the regulator. The regulator will launch
the automatic recognition procedure. This procedure
will last between 2 and 15 minutes. At the end of this
procedure the value displayed will correspond to the cos
phi of the installation. At this stage regulation is effective
(cos phi setpoint 0.96).
3) Modification of the cos phi setpoint (if required) and
configuring to display the actual current.
• Press the prog. button for 8 seconds, " -1- " will appear
and the "manual" LED will flash.
• Press prog., the cos phi setpoint value will be
displayed. To change the value press "+" or "-".
• Press the prog. button. The value "-2-" is displayed.
Press "+" until the parameter 18 is reached (the display
shows "18").
•Press prog. The winding ratio is displayed. To change
this value press "+" or "-".
• Press prog. Press "=" until "end" is reached. Confirm
by pressing prog. If other modification of the regulator's
settings are required, refer to the detailed settings (page
10).
COMMISSIONING
10
COSYS R 6H Regulator - Ref.: 539971A
Parameter settings
No. Description Factory setting Setting range
1 target cos phi. 0.96 lagging 0.9 leading to 0.8 lagging in increments of
0.01
2 Parallel V offsetting. - 1.0 (In this way the target
cos phi remains within the
limit value)
From -2 to +4 in increments of 0.5
3 Limitation of B. +1.0 (IN this way overcom-
pensation is not allowed)
OFF or from -2 to +2 in increments of 0.5
4 Time delay before a stage is activa-
ted.
45 from 5 to 500 sec. in increments of 1 second
or 5 seconds by pressing and holding the
button
5 Automatic recognition of the sensi-
tivity
ON ON = Automatic recognition OFF = Manual
setting if "ON" go straight to module 13
6 Manual setting of c/k 2 from 0.02 to 2 in increments of 0.01 or 0.05
by pressing and holding the button. See table
3
7 c/k switching sequence 1 :1 :1 :1 :1 1:1:1:1:1... 1:1:2:4:4... 1:2:3:4:4... 1:1:2:2:2...
1:1:2:4:8... 1:2:3:6:6... 1:1:2:2:4... 1:2:2:2:2...
1:2:4:4:4... 1:1:2:3:3... 1:2:3:3:3... 1:2:4:8:8...
8 Number of outputs used 6 From 1 to 6
Table 1: Regulator parameters
The settings can be modified to allow several operating
modes.
The regulator is supplied in a standard factory
configuration.
To avoid any programming errors, the parameters cannot
be set in the first 5 minutes the regulator is powered on.
Once the modifications are made, other modifications
can be made within an hour. After this time has elapsed
the parameters can be viewed.
In order to modify the parameters again, the regulator
feed must be disconnected temporarily.
To program and/or see the parameters, proceed as
follows:
• Press the "Prog." button for at least 8 seconds.
The display will show "-1-". This figure shows the
parameter number to be selected (see Table 1).
• By pressing the "Prog." button again, the display will
show the current value.
• By pressing buttons "+" or "-" a new value can be
entered.
• By pressing the "Prog." button again the following
parameters can be accessed.
• Pressing the "+" button after viewing the parameter
"-24-" or pressing the "-" button after viewing the
parameter "-1-" will result in "End" appearing on the
display.
• Confirm exiting the parameter setting mode by
pressing the "Prog." button when "End" is displayed.
The regulator will launch its program with the values
entered.
POSITIONING
COSYS R 6H Regulator - Ref.: 539971A
11
COSYS R 6H Regulator
No. Description Factory setting Setting range
9 Fixed stages 0 From 0 to 3
0 = None
1 = Stage 1 fixed
2 = Stages 1 and 2 fixed
3 = Stages 1 to 3 fixed
10 Connection recognition
ON/OFF
ON ON = Automatic recognition
OFF = Manual parameter setting
With "On" there is no program No. 15
not modifiable
11 Reading or setting the parameters
of the connection
Automatic recognition See table 2
12 Triggering time (discharging of the
capacitors in seconds)
60 from 5 to 900 sec. in increments of 1 second
or 5 seconds by pressing and holding the
button
13 Cyclic operation of the stages ON ON = Cyclic operation active OFF = Cyclic
operation deactivated. (linearity).
14 Number of times the switches are
actuated before alarm feedback
80 From OFF to 1000 (the value read must be
multiplied by 1000)
15 Switch activation counter reset 0 Select a number between 1 and 6 (Regulator
output contact). ALL will reset all counters.
16 Winding ratio of the CT 1 From 1 to 7,000 in increments of 1 or 5 by
pressing and holding the button **)
17 Winding ratio of the voltage transfor-
mer
1 From 1 to 300 in increments of 1 or 5 by
pressing and holding the button **)
18 Harmonics limit value of row 5 5 From 1 to 20 % in increments of 0.1 % or 0.5
% by pressing and holding the button **)
19 Harmonics limit value of row 7 4 From 1 to 20 % in increments of 0.1 % or 0.5
% by pressing and holding the button **)
20 Harmonics limit value of row 11 3 From 1 to 20 % in increments of 0.1 % or 0.5
% by pressing and holding the button **)
21 Harmonics limit value of row 13 2.1 From 1 to 20 % in increments of 0.1 % or 0.5
% by pressing and holding the button **)
22 Permissible overvoltage 1.3 From 1.05 to 3 times In, in increments of 0.05
or 0.1 by pressing and holding the button **)
23 Cos phi value alarm ON or OFF When “OFF“ no alarms are enga-
ged.
24 Display of total power involved (capa-
citors in good condition)
Only displays during
operation
Pressing the "Prog." button will display the
capacitor power in Kvar that is connected to
the regulator terminals.
**) Pressing and holding the "+" or "-" buttons speeds up the scrolling.
POSITIONING
12
COSYS R 6H Regulator - Ref.: 539971A
Type of connec-
tion
Position of the
CT
CT secondary terminals Voltage connections
S1 S2 L/N N
0 L1 I k N L1
1 L1 K I L1 L3
2 L1 K I N L3
3 L1 L K L3 L2
4 L1 L K N L2
5 L1 K L L2 L1
6 L1 K L N L1
7 L1 L K L1 L3
8 L1 L K N L3
9 L1 K L L3 L2
10 L1 K L N L2
11 L1 L K L2 L1
Current
transfor-
mer
c/k values configurable at nominal voltage 400V 50Hz
Power of smallest stage
A/A 2.5 5 6.25 7.5 10 12.5 15 20 25 30 40 50 60 100
30/5 0.40 0.80 0.98 1.20 1.60
40/5 0.30 0.60 0.74 0.90 1.20 1.50
50/5 0.24 0.48 0.59 0.72 0.96 1.20 1.44
60/5 0.20 0.40 0.49 0.60 0.80 1.00 1.20 1.60
75/5 0.16 0.32 0.39 0.48 0.64 0.80 0.96 1.28 1.60 1.92
100/5 0.12 0.24 0.30 0.36 0.48 0.60 0.72 0.96 1.20 1.44 1.92
150/5 0.08 0.16 0.20 0.24 0.32 0.40 0.48 0.64 0.80 0.96 1.28 1.60 1.92
200/5 0.06 0.12 0.15 0.18 0.24 0.30 0.36 0.48 0.60 0.72 0.96 1.20 1.44
250/5 0.05 0.10 0.12 0.14 0.19 0.24 0.29 0.38 0.48 0.58 0.77 0.96 1.15 1.92
300/5 0.04 0.08 0.10 0.12 0.16 0.20 0.24 0.32 0.40 0.48 0.64 0.80 0.96 1.60
400/5 0.03 0.06 0.08 0.09 0.12 0.15 0.18 0.24 0.30 0.36 0.48 0.60 0.72 1.20
500/5 0.02 0.05 0.06 0.07 0.10 0.12 0.14 0.19 0.24 0.29 0.38 0.48 0.58 0.96
600/5 0.04 0.05 0.06 0.08 0.10 0.12 0.16 0.20 0.24 0.32 0.40 0.48 0.80
750/5 0.03 0.04 0.05 0.06 0.08 0.10 0.13 0.16 0.19 0.26 0.32 0.38 0.64
1000/5 0.02 0.03 0.04 0.05 0.06 0.07 0.10 0.12 0.14 0.19 0.24 0.29 0.48
1500/5 0.02 0.02 0.03 0.04 0.05 0.06 0.08 0.10 0.13 0.16 0.19 0.32
2000/5 0.02 0.03 0.04 0.05 0.06 0.07 0.10 0.12 0.14 0.24
2500/5 0.02 0.03 0.04 0.05 0.06 0.08 0.10 0.12 0.19
3000/5 0.02 0.03 0.04 0.05 0.06 0.08 0.10 0.16
4000/5 0.02 0.03 0.04 0.05 0.06 0.07 0.12
5000/5 0.02 0.03 0.04 0.05 0.06 0.10
6000/5 0.02 0.03 0.04 0.05 0.08
Table 2: Connection type
Table 3: c/k parameter selection table.
POSITIONING
COSYS R 6H Regulator - Ref.: 539971A
13
COSYS R 6H Regulator
Displays
The selection of displayed values is totally independent
from the regulator operation. A diode to the right of
the "cos j", "A", "Harm" display indicates which
value is being displayed. The display is able to display
the following values (by pressing the corresponding
buttons(s)):
- The power factor is the default value displayed
- Button "Q" displays reactive current
- Button "P" displays active current
- Pressing buttons "P" and "Q" together displays the
apparent current
- The "Harm" button will display the harmonics from
rows 5, 7, 11 and 13. Buttons "+" and "-" are used
to scroll through the value of the different harmonics.
(When the display shows 5. 2.9 this indicates that the
harmonic of row 5 has an amplitude of 2.9%)
- A 3 second press of the button "aut/manu" will allow
manual implementation of the stages. Buttons "+" and
"-" are used to scroll through the stages. After a delay of
about 12 seconds, the stage will change to the opposite
state to its original state. During switching, the number
of activations is briefly displayed (0.350 indicates 350
activations).
COSYS R 6H
A
Harm
Cos ϕ
MANUAL
ALARM
IP < 0
1 23456
Harm
PROG
AUT
MAN
S
PQ
Positioning
14
COSYS R 6H Regulator - Ref.: 539971A
Error Possible cause Corrective action
1 The regulator is not operating.
No display on the screen.
No mains voltage. Check that the regulator has the
correct feed.
2 The display shows U=0
and is flashing.
Regulator measurement voltage too
low.
Check the measurement voltage
connection is correct.
3 The regulator is not responding to
manual activation (Feed and display in
good condition).
Activation delay not taken into consi-
deration.
If the display indicates for
example "1.ON", wait for the
regulator to engage the first
stage.
Manual mode not confirmed. Press the "aut/man" button until
the "manual" LED flashes
4 Stages indicated as activated whereas
the switches are not activated.
Control badly connected or control
voltage missing.
Check the wiring against the
connection diagram. Check the
fuses.
5 The regulator remains in the automatic
recognition procedure.
Unstable network (large fluctuations in
cos phi).
Wait for more stable network
conditions. Enter the c/k values
and connection type manually.
6 During the automatic measurement
procedure, the display shows C=0.
Error in the control loop (The switches
are not engaging).
Check the wiring against the
connection diagram. Check the
fuses.
Missing or defective fuses. Check there is voltage at the
capacitor terminals after they are
engaged.
CT badly positioned. Check the installation of the CT.
7 The display indicates "I=0" and is
flashing.
CT connection faulty or short circuiting. Check the measurement current
value (Imin>0.02A)
The measurement current is too low. Fit a smaller rated CT
Faulty CT. Check the CT operates correctly
8 Under automatic operation and with an
inductive load, no activation is taking
place.
The parameter settings of the c/k, time
delay or discharge settings are too
high.
Change the programmed values.
Modify as required.
The c/k value is not recognised in auto-
matic operation.
Conform the connection of the
control against the wiring diagram
and reinitiate the procedure.
Several measurement instruments
(for example ammeters) connected in
parallel to the regulator.
Install the different measurement
instruments in series.
9 Under automatic operation, a stage is
regularly engaged and disengaged.
Strong variations in load; time delay
too low.
Increase the time delay.
The c/k value programmed for the
regulator is too low.
Enter the c/k value in compliance
with the table.
TROUBLESHOOTING
COSYS R 6H Regulator - Ref.: 539971A
15
COSYS R 6H Regulator
Error Possible cause Corrective action
10 The cos phi displayed is less than the
target cos phi whereas all the regulator
loads are engaged.
Incorrect connection type
entered.
Select a new connection type.
Error in the control loop. Check if the capacitor relays are
controlled.
Error in the current loop
of the capacitors.
Check the condition of the fuses,
the relay contacts and measure
the current absorbed by the
capacitors with an ammeter.
Undersized equipment. Press the "Prog." button to
display the missing power.
Initialising fault. Restart the initialising phase.
11 When the load is low or production
stops, the regulator will not disconnect
the loads.
The c/k value is too high. Enter the c/k value according to
the table.
The regulator is operating
in manual mode.
Press the "man" button
TROUBLESHOOTING
SOCOMEC - Ref.: 539971A - 09/11
VALID FOR FRANCE
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Non contractual document. © 2012, Socomec SA. All rights reserved.
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