Ingersoll-Rand Nirvana SGNe V2.5 Troubleshooting Manual

Brand: Ingersoll-Rand

Model: Nirvana SGNe V2.5

Type: Troubleshooting Manual

Nirvana SGNe V2.5

Troubleshooting Guide

Rev 1.0; May 2009

SGNe

Troubleshooting Guide

SGNe Troubleshooting Guide Page 1

Revision 1.0; Davidson, May 2009. ©Ingersoll Rand Proprietary Information

Proprietary Notices and Disclaimer

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CONFIDENTIAL AND TRADE SECRET INFORMATION

. This manual contains confidential and trade

secret information owned by Ingersoll-Rand Company (hereinafter referred to as "Proprietary Matter"). In

consideration of the disclosure of the Proprietary Matter herein to the authorized recipient hereof, the

recipient shall treat the Proprietary Matter as secret and confidential; shall not disclose or give such

Proprietary Matter to third parties without the express written authorization of INGERSOLL RAND; shall

not use the Proprietary Matter except to the extent necessary to use or service the equipment disclosed

herein; and shall disclose such Proprietary Matter only to those of its employees whose use or

knowledge of the Proprietary Matter is necessary. This manual shall be returned upon request by

Ingersoll Rand Company. The unauthorized use of this manual may be punishable by law.

DISCLAIMERS

PROVIDED "AS IS". THIS MANUAL AND THE CONTENTS THEREOF ARE PROVIDED "AS IS"

AND WITHOUT ANY IMPLIED WARRANTIES.

SGNe Troubleshooting Guide Page 3

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Compressed air and electricity can be dangerous. Before undertaking any work on the

compressor, ensure that the electrical supply has been isolated and the compressor

has been relieved of all pressure. Use proper Lock Out Tag Out procedures to ensure

you and your coworkers safety.

Keep all parts of the body and any hand-held tools or other conductive objects, away

from exposed live parts of the compressor electrical system. Maintain dry footing,

stand on insulating surfaces and do not contact any other portion of the compressor

when making adjustments or repairs to exposed live parts of the compressor electrical

system. Close and lock all access doors when the compressor is left unattended.

Do not use extinguishers intended for Class A or Class B fires on electrical fires. Use

only extinguishers suitable for class BC or class ABC fires. Attempt repairs only in

clean, dry, well lighted and ventilated areas. Connect the compressor only to electrical

systems that are compatible with its electrical characteristics and that are within it’s

rated capacity.

WARNING

Imposing a normal or emergency stop on the compressor will only relieve pressure up-

stream of the minimum pressure valve on top of the separator tank. If maintenance

work is required downstream of this valve, ensure that all pressure is relieved at the

process vent point external to the compressor.

This state is advised by selecting PACKAGE DISCHARGE PRESSURE on the control

panel.

Caution!!!

SGNe Troubleshooting Guide Page 4

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Current Status Messages

While the compressor has power (started or stopped), a current status screen will be

displayed by the controller. This current status screen will be considered the “normal”

display that the

controller shows.

% Energy Savings

This displays the percent of energy saved by a Nirvana compressor, as compared to a

comparable fixed speed compressor that is operating in one of three modes.

% Capacity

Displays the compressor’s current percent capacity. This value will be determined by

the actual speed vs. the maximum speed.

Package kW

Displays the compressor’s kilowatt usage. This value includes the blower’s kW usage.

Package Discharge Temp

Displays the reading from temperature sensor 4ATT. There is no logic associated with

the package discharge temperature.

Airend Discharge Temp

Displaysthereadingfromtemperaturesensor2ATT

Injected Coolant Temp

Displays the reading from temperature sensor 2CTT.

Sump Pressure

Displays the reading from pressure sensor 3APT.

Separator Pressure Drop

Displays the value of the pressure drop across the separator. This value is determined

by subtracting the dry side sump pressure from the wet side sump pressure.

SGNe Troubleshooting Guide Page 5

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Coolant Filter

Displays the status of the coolant filter.

This status is determined by a coolant filter

switch, that is read by the controller.

Inlet Filter

Displays the status of the inlet filter as determined by the air filter delta-p switch.

Total Hours

Displays the total running hours.

Motor Speed

This value is read from the variable speed drive controller and displayed.

Remote Pressure

If the compressor has the remote pressure sensor option, this value is read from the

variable speed drive controller and displayed.

If the compressor doesn’t have the remote pressure sensor option, Not Installed will

e displayed.

Time & Date

Displays the current time and date.

Program Name

Displays the program name, version number, and software part number.

VSD

Displays the version number of the drive software.

Factory Set Points

The factory set point sequence is accessed with the hidden function button sequence

of Main Menu, followed by upper middle, then F2, and then F1.

The sequence contains the following settings:

Language

The language selections are:

English, Spanish, Portuguese, French, Italian, German,

Dutch, Danish,Norwegian, Swedish, Finnish, Turkish, Lithuanian, Latvian, Estonian,

Maltese, Slovenian, Slovakian,Czech, Hungarian, and Polish.

SGNe Troubleshooting Guide Page 6

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Units of Measure

The units of measure selections are PSI & Deg F, PSI & Deg C, BAR & Deg C, kPa &

Deg C, and KGCM2 & Deg C.

Whenever the units of measure are changed, the Intellisys will transmit a new

target pressure to the VSD. Along with the target pressure, the Intellisys will also

transmit new minimum and maximum speeds to the VSD. The minimum and

maximum speed is determined from a table, based on the compressor model

and the target pressure.

Compressor Type

The type of compressor will be selected here. The choices are listed below.

Compressor Type and Target Pressure will be used to determine the

compressor’s maximum speed once the speed curves have been generated.

Whenever the compressor type is changed, the Intellisys will transmit new

minimum and maximum speeds to the VSD. The minimum and maximum

speed is determined from a table, based on the compressor model and the

target pressure.

Single Stage 2-Stage, Low Pressure 2-Stage, High Pressure

37 kW/50 HP 1-S 75 kW/100 HP 2-S 90 kW 2-S

45 kW/60 HP 1-S 90 kW 2-S 125 HP 2-S

55 kW/75 HP 1-S 125 HP 2-S 110 kW 2-S

75kW/100HP 1-S 110 kW 2-S 150 HP 2-S

90 kW 1-S 150 HP 2-S 132 kW 2-S

125 HP 1-S 132 kW 2-S 200 HP 2-S

110 kW 1-S 200 HP 2-S 160 kW 2-S

150 HP 1-S 160 kW 2-S

132 kW 1-S 250 HP 2-S

200 HP 1-S 200 kW 2-S

160kW 1-S 300 HP 2-S

250 kW 2-S

SGNe Troubleshooting Guide Page 7

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Water Cooled

This set point is used to select the type of cooling. The selection is water cooled On or

Off. A selection of Off will mean the unit is air cooled.

Hot Side Thermal Valve

This should only be set to on if the compressor is equipped with a hot side thermal

valve. If this is set to On, the Intellisys will focus on CTD when determining the blower

speed. If this is set to Off, the Intellisys will focus on anti-condensation when determin-

ing the blower speed. Hot side thermal valve operation also requires the cooler out

temperature sensor (4CTT). The default value for this set point is On unless

the unit is a 50 HP, 60 HP, or Viper-N. For these units the default value is Off.

Total Hours

The total hours selection is used to adjust the total operating hours display.

Service Level

This set point is used to select a service level of 1 or 2 for maintenance warnings.

Service Interval Type

This set point is used to select hours or months for measuring the service interval.

This

set point is not used if the service level is 1. Service warnings occur when the

unit has

operated a certain number of hours, based on the total hours, or has

operated for a

certain number of months, based on the real time clock. Service

warnings can have

multiple levels, depending on the service level selection.

Service Interval

This set point is used to select the number of months for measuring the service inter-

val. The selections are 3, 6, 9, or 12 months. This set point is not used if the service

level is 1 or the service interval type is hours.

Service Complete

This set point is used to indicate to the controller that service has been completed.

This set point is not used if the service level is 1.

Service Menu

This set point is used by IR service to gain access to a set of service set points, the

field interface, and the direct read from the VSD function. IR service will enter a code

number to gain access to these items. An incorrect code will send the user back to the

current status display.

SGNe Troubleshooting Guide Page 8

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Operator Set Points

The operator set point screen contains the name and value of each user-adjustable set

point. These points shall be adjustable without stopping the compressor. The following

set points can be seen on this screen by moving the list up and down with the arrow

buttons.

Target Pressure

The compressor will try to operate at this pressure setting. The target pressure ranges

and step sizes for each unit of measure are listed in the table below. The maximum

pressure range is shown for single and two stage units.

OPERATOR SETPOINTS Default MIN. MAX. STEP UNIT

Immediate Stop Pressure 120 Auto Auto+10 1 1 psi

Condensate Release 5 2 20 1 sec

Condensate Interval 180 90 270 1 sec

Service Menu 1 1 25535 1 —-

% Savings Compared To Modulation —- —- —- —-

Automatic Stop Pressure 110 Target+1 Target+10 1 psi

Target Pressure 100 65 145/203 1 psi

Blowdown Mode Off Off On --- ---

Reset Averaging Blank —- —- —- date

Energy Rate 0.000 0.000 9999.999 —- —-

Unit Min Max (1S/2S) Step

PSI 65 145/203

BAR 4.4 10/14

0.1

kPa

440

1000/1400

KGCM2

4.5

10.2/14.

0.1

SGNe Troubleshooting Guide Page 9

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Automatic Stop Pressure

The compressor will stop once the system pressure rises to this pressure and the

mpressor is operating at the minimum speed. The range for this set point will be the

target pressure+1 to target pressure+10 psi if the target pressure is 145 psi or less, to

target pressure+7 psi if the target pressure is greater than 145, but less than or equal

175 psi, or to target pressure+5 psi if the target pressure is greater than 175 psi.

Immediate Stop Pressure

The compressor will stop if the system pressure rises to this pressure. The range for

this set point will be the automatic stop pressure to automatic stop pressure+10 psi if

the target pressure is 145 psi or less, to automatic stop pressure+7 psi if the target

pressure is greater than 145, but less than or equal to 175 psi, or to automatic stop

pressure + 5 psi if the target pressure is greater than 175 psi.

Blowdown Mode

If this mode is selected to “ON”, the compressor will de-energize the blowdown sole-

noid anytime that it stops. This will keep the compressor from staying pressurized

when it is stopped. If this mode is selected to “OFF”, the blowdown solenoid will stay

energized when the compressor stops due to an auto stop or an immediate stop. This

set point is only used in single stage compressors. If the compressor is a 2 stage unit,

blowdown mode will be listed as not installed and the compressor will always blow-

down when it stops. Blowdown mode cannot be set to On in 2 stage compressors.

Condensate Release

This is the number of seconds that the condensate solenoid will be open (energized)

when blowing out the condensation

Condensate Interval

This is the time interval between condensation blow downs.

% Savings Compared To

This set point is to determine what Nirvana’s percent of savings is compared to.

The modes of operation for comparing Nirvana to are modulation, online/offline,

and geometry.

The percent savings value is displayed by the status message, % energy savings.

Energy Rate

This set point is used to enter the cost per kilowatt hour into the Intellisys. This value

used for calculating energy cost and energy savings in the energy status menu.

SGNe Troubleshooting Guide Page 10

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Reset Averaging

This set point is to reset the time period that the energy status information will be

calculated over. When this set point has been selected and set, the date that is

was last

set will be displayed.

Options

The options screen is similar to the operator set point screen in terms of step

intervals and units. However, the range section allows the operator to turn the

options “ON” or “OFF”. The following are the names and values of each option.

They are viewed by moving up and down with the arrow buttons.

If an option has not been purchased and installed in the unit, the message “Not

Installed” will be shown on the selection display screen. Installation of options

will be done using the IR service tool.

OPTION ITEMS SELECTION MIN. MAX. STEP UNIT Installed

Option

Required

Remote Sensor ON/OFF

--- --- --- ---

Sequencer ON/OFF

--- --- --- ---

Remote Start/Stop ON/OFF

--- --- --- ---

Power Out Restart ON/OFF

--- --- --- ---

Yes

Power Out Restart Time --- 10 600 1 sec Yes

Scheduled Start Day --- Day Day 1 day Yes

Scheduled Start --- 00:00 23:59 1 time Yes

Scheduled Stop Day --- Day Day 1 day Yes

Scheduled Stop

---

00:00 23:59 1 time Yes

Modbus Protocol ON/OFF/ICU

--- --- --- ---

Modbus Address --- 1 247 1 --- No

SGNe Troubleshooting Guide Page 11

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Remote Sensor

If this setting is set to On, the compressor will use the remote sensor for pressure

control, except for the immediate stop. The remote sensor is connected directly to the

VSD

and measures the pressure after the discharge of the package. The Intellisys

will read

the remote sensor pressure value from the drive and display it in the current

status

menu under remote pressure. The VSD will determine the speed directly from

the remote sensor. The local discharge pressure sensor (4APT) will still be used by

the

Intellisys for all alarms, warnings and immediate stop.

Sequencer

If this setting is set to On, the compressor will be able to receive commands from a

host device, such as an ISC. When the Intellisys receives a load command from the

host device, the compressor will start and ramp up to speed. When the Intellisys

receives an unload command, the Intellisys will respond as if it were executing an

immediate stop.

Remote Start/Stop

If this setting is set to Yes, the compressor will be able to be started and stopped

from a remote device.

Power Out Restart

If this setting is set to Yes, the compressor will automatically restart when power is

returned to the compressor if it was operating when power was removed.

Power Out Restart Time

If the power out restart setting is set to Yes, this is the number of seconds from the

time power is restored until the compressor starts.

Scheduled Start Day

This option is the selection for the day that a scheduled start will take place. The

selections are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday,

Daily (Su – Sa), Week days (M – F), or Weekends.

This option set point will work with the scheduled start set point.

SGNe Troubleshooting Guide Page 12

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Scheduled Start

This option will cause the unit to start on the scheduled start day, at the time stored in

this set point. To disable this option, set the value of scheduled start equal to the value

of scheduled stop

Scheduled Stop Day

This option is the selection for the day that a scheduled stop will take place. The selec-

tions are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Daily

(Su – Sa), Weekdays (M – F), or Weekends.

This option set point will work with the scheduled stop set point.

Scheduled Stop

This option will cause the unit to stop on the scheduled stop day (3.3.3.10), at the time

stored in this set point. To disable this option, set the value of scheduled stop equal to

the value of scheduled start

Modbus Protocol

The Modbus communications will be disabled if this is set to OFF. If set to ON or ICU,

Modbus communications will be enabled using RTU protocol. If set to ICU, the Intelli-

sys will call out if an alarm or warning occurs. See the Modbus manual for information

on RTU protocol.

Modbus Address

The Modbus address can be set from 1 to 247.

Sensor Calibration

Pressure transducers are calibrated by using the SENSOR CALIBRATION screen.

Calibration can only take place when the unit is not running. The following sensors are

displayed for calibration (chosen by using the UP and DOWN arrow buttons):

SENSOR CALIBRATION Items

Sensor 4APT (Package Discharge)

Sensor 3APT (Wet Side Sump)

Sensor 6APT (Dry Side Sump)

Sensor 2APT (Interstage – 2 Stage Units Only)

SGNe Troubleshooting Guide Page 13

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

If a zero value is +/- 10% of the scale then calibration should not be allowed. If this

occurs, the following message will be displayed: Invalid Calibration

Alarm History

The ALARM HISTORY screen gives the operator the capability to scroll through the

stored alarms (15 most current) experienced by the machine. Each alarm is labeled by

number (i.e. “Alarm History 1”) and listed in the order of most recent alarm being first.

Pressing the SELECT button when one of the alarms is highlighted will display the list

of machine values that existed at the time that particular alarm occurred.

Clock Functions

The clock functions screen is used for setting the time and date for the real time clock.

Time: This is used for setting the hours (0 - 23) and minutes (0 - 59).

Date: This is used for setting the month, day, and year.

Service Display Menu 3

The service display function can only be accessed from the service menu. A code

number is entered to access this function. The service display function will only be

accessed by IR service. This function will allow IR service personnel to read a

selected

group of operation values that are not made available to the customer

along with some

of the values from the current status display.

% Capacity

Displays the compressor’s current percent capacity. This value will be determined

by the actual speed vs. the maximum speed.

Inlet Temp

Displays the reading from temperature sensor 1ATT.

Package Discharge Temp

Displays the reading from temperature sensor 4ATT.

Airend Discharge Temp

Displays the reading from temperature sensor 2ATT.

SGNe Troubleshooting Guide Page 14

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Injected Coolant Temp

Displays the reading from temperature sensor 2CTT.

Interstage Pressure

Displays the status of the interstage pressure (2APT) on 2 stage compressors.

This

sensor is only used on 2 stage units and this display is shown as not installed

on single

stage compressors.

Sump Pressure

Displays the reading from pressure sensor 3APT.

Dry Sump Pressure

Displays the reading from pressure sensor 6APT.

Motor Speed

This value is read from the variable speed drive controller and displayed.

Motor Current

This value is read from the variable speed drive controller and displayed

Motor Voltage

This value is read from the variable speed drive controller and displayed.

Input Voltage

This value is read from the variable speed drive controller and displayed.

DC Bus Voltage

This value is read from the variable speed drive controller and displayed.

IGBT U Temperature

This value is read from the variable speed drive controller and displayed.

IGBT V Temperature

This value is read from the variable speed drive controller and displayed.

IGBT W Temperature

This value is read from the variable speed drive controller and displayed.

SGNe Troubleshooting Guide Page 15

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SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Input Rectifier Temperature

This value is read from the variable speed drive controller and displayed.

VSD Ambient Temperature

This value is read from the variable speed drive controller and displayed.

Blower Percentage

This value is the percentage of the 4 – 20 mA output the Intellisys is sending to the

variable speed blower.

For example, 0% would be 4mA, 50% would be 12mA, and 100% would be 20mA.

Target Temperature

This value is the minimum target temperature the variable speed blower is trying to

maintain.

Calculated Target Temperature

This value is the calculated target temperature without any adjustment for things

such

as injected coolant temperature.

This value may be the same as the target temperature.

Anti-condensation SV Condition

This display will show the current state of the anti-condensation solenoid valve.

If it is

energized it will be On, de-energized will be Off.

Remote Pressure

If the compressor has the remote pressure sensor option, this value is read from the

variable speed drive

controller and displayed.

If the compressor doesn’t have the remote pressure sensor

option, Not Installed

will be displayed.

Remote Max Speed

Used to display the remote max speed after the pressure differential is calculated.

Remote Max Pressure

Used to display the remote max pressure after the pressure differential is calculated.

This value is always in Psi. The remote max speed is based on this number.

SGNe Troubleshooting Guide Page 16

SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

IEO Target Pressure

When the Nirvana is being controlled by an IEO, this display will show the target

pressure the IEO is trying to control the unit at.

Cooler Out Temp

Displays the reading from temperature sensor 4CTT, Oil Cooler Output.

This sensor is only used on units with the hot side thermal valve installed.

Service Menu 16 Max Values

Motor Speed

Time and Date

Motor Current

Time and Date

Input Voltage

Time and Date

DC Bus Voltage

Time and Date

Motor Voltage

Time and Date

Reset Max values

SGNe Troubleshooting Guide Page 17

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Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Service Menu 33

The following are set points that are only set by IR service. These set points are ac-

cessed by entering a code number into the service menu set point.

*- The maximum speed maximum limit will change whenever the compressor type or

target pressure is changed. The above is the initialization value.

Idle Mode

If this is set to ON, the compressor will only run at the slowest (65 psi) minimum speed

with the blowdown valve open. A ‘Replace Coolant Filter’ Alarm will be issued when

this

mode is set to ON. This alarm is a reminder to only operate in this mode if a new

coolant filter is installed. Once the alarm is reset, the unit can be started in idle mode.

When this is turned OFF, the compressor will automatically return to VSD operation.

idle mode is not turned Off by IR service, it will automatically set itself to Off after 10

minutes of operation and the compressor will stop at that time. This will only be used

by IR service.

SERVICE MENU Default MIN. MAX. STEP UNIT

Idle Mode Off Off On --- ---

Proportional Gain 30 0 999 1 ---

Integral Gain 600 0 999 1 ---

Derivative Gain 1 0 10 1 ---

Maximum Speed 1810 1400 1810* 50 RPM

Minimum Speed 914 800 1300 50 RPM

Skip Speed Point 1200 -5400 5400 1 RPM

Skip Speed Band 170 0 255 1 RPM

Fixed Speed Control Off Off On --- ---

Lowest Blower Percentage 20 10 50 1 %

Warm Up Temp 180 170 190 1 Deg

Warm Up Time 5 3 10 1 Min

Variable Speed Delay 0 0 60 1 Sec

Remote Sensor Offset 0 -5 5 1 PSI

Remote Press Diff Delay 10 3 60 1 Sec

Memory Test Result 0 0 2 --- ---

SGNe Troubleshooting Guide Page 18

SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Proportional Gain

This set point is sent to the VSD when it is changed.

This is used for the PID proportional gain.

Integral Gain

This set point is sent to the VSD when it is changed.

This is used for the PID integral

gain.

Derivative Gain

This set point is sent to the VSD when it is changed.

This is used for the PID derivative

gain.

Maximum Speed

This set point is sent to the VSD when the target pressure is changed. This set point

can be used to override the maximum speed for the VSD as set by the target pressure.

This is the maximum speed the motor will operate at after it has started. The speed of

the motor will not exceed this value during operation.

Minimum Speed

This set point, is sent to the VSD when the target pressure is changed. This set point

can be used to override the minimum speed for the VSD as set by the target pressure.

This is the minimum speed the motor will operate at after it has started.

Skip Speed Point

This set point is used for setting the mid-point of a speed band that the VSD will skip

over. This value will be positive for single stage compressors and will be negative for

2 stage compressors. Single stage unit rotate in a clockwise direction and provide a

positive speed feedback. Two stage units rotate in a anticlockwise direction and provide

negative speed feedback.

Skip Speed Band

This set point is used for setting the bandwidth of the skip speed range. The VSD will

skip any speeds within this range.

Fixed Speed Control

If this is set to On, the compressor will only run at the slowest speed of maximum

pressure (145 psi or 203 psi) . When this is turned Off, the compressor will automatically

return to VSD operation. If fixed speed control is not turned off by IR service, it will

automatically set itself to Off after 10 minutes of operation

SGNe Troubleshooting Guide Page 19

SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Lowest Blower Percentage

This set point is used for setting minimum speed for the blower. The minimum speed is

set setting the minimum percentage of output for the 4 – 20 mA output.

Warm Up Temperature

This set point is used to determine if the compressor run a warm up cycle. If the airend

discharge temperature doesn’t reach this temperature in two consecutive cycles, the

Intellisys will run a warm up cycle.

Warm Up Time

This set point is used to set the time period for a warm up cycle.

Variable Speed Delay

This set point is used to keep the variable speed compressor from going above

minimum speed for the time (seconds) of this set point. If this set point is above 0, the

Intellisys will not allow the compressor to operate in variable speed mode until the

variable speed delay timer expires. When the timer expires, the compressor will begin

variable speed operation. The timer starts when the compressor starts.

Remote Sensor Offset

This set point is used to adjust the remote sensor reading. For example, this would be

used to adjust out any differential pressure reading between the remote sensor and a

customer’s pressure gauge. If the customer’s pressure gauge is reading 2 psi lower

than the remote pressure sensor, the remote sensor offset could be set to –2 to make

the 2 sensor readings equal.

The target pressure that is sent to the VSD will also be

adjusted for this offset.

Remote Pressure Differential Delay Time

This set point is for calculating the pressure differential between the package dis-

charge pressure and the remote pressure. This set point is used for determining the

minimum time the conditions must exist for calculating the remote pressure differential.

Memory Test Result

If this is selected and set, the Intellisys will conduct a memory test on its RAM and

ROM. At completion of the test the Intellisys will display the result. A 0 result will mean

that both the RAM and ROM passed the test. A result of 1, 2, or 3 will mean that the

RAM failed the memory test, but the ROM passed. A result of 4 will mean that the RAM

passed, but the ROM failed the memory test. A result greater than 4 will mean that

both the RAM and ROM failed the memory test.

The compressor must be stopped to

conduct it.

SGNe Troubleshooting Guide Page 20

SGNe

Troubleshooting Guide

Danger

Please utilize extreme caution when performing work within the compressor cabinet.

When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),

follow lock out-tag out procedures, and ensure all safety procedures are followed

Service Menu 91 Test Menu

Fixed Speed Control

Fixed Speed RPM

% Blower Speed

Anti-condensation

Service Menu 218 Field Interface

Configure VSD

Read from VSD

Install Purchased Options

Service Menu 348 Diagnostics

Control Interface Test

Power Module Test

VSD Memory Test

Error Code #1

Error Code #2

Energy Status Messages

While the compressor has power (started or stopped), an energy status screen can be

displayed by the controller. The energy status display can be selected by the operator

by pressing the energy status button. The operator can return the display to the current

status by pressing the status button. The following items and their present values will

be displayed on the right side (area 2) of the screen by pressing the UP and DOWN

arrows.

Average Package kW-hours

This displays the average package kW per hour for the time period that was started by

selecting the reset averaging set point. This value includes the blower power usage.

Average % Capacity

Displays the compressor’s average percent capacity for the time period that was started

by selecting the reset averaging set point. This value is determined by taking the average

package kW per hour, removing the blower power usage, and then dividing that number

by the motor kW per hour for that size of compressor at 100% capacity.

Average Capacity

Displays the compressor’s average capacity in cfm or M3 for the time period that was

started by selecting the reset averaging set point.

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Ingersoll-Rand Nirvana SGNe V2.5 Troubleshooting Manual

Ingersoll-Rand Nirvana SGNe V2.5 Troubleshooting Manual

Ingersoll-Rand Nirvana SGNe V2.5 Troubleshooting Manual

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