Ingersoll-Rand Nirvana 5.5 Troubleshooting Manual

Brand: Ingersoll-Rand

Model: Nirvana 5.5

Type: Troubleshooting Manual

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Nirvana 5.5 - 11kW (7.5 – 15 HP)

Variable Speed Drive

Technicians

Diagnostics and

troubleshooting

Guide

Revision 02, July 2008

Danger

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(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Proprietary Notices and Disclaimer

PROPRIETARY NOTICES

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 authorised 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 authorisation of INGERSOLL-RAND; shall not use the Proprietary Matter except to

the extent necessary to sue 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 unauthorised use of this manual may

be punishable by law.

DISCLAIMERS

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

WITHOUT ANY IMPLIED WARRANTIES.

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Table of Contents Page

• General Run and Monitor Information 04

• Secure disable 07

• User 1 08

• OI-AC Over current 10

•Motor I

t11

• Blank CDC 12

• Other fault codes 13

• Appendix 1: sec disable information 14

• Appendix 2: User 1 information 16

• Appendix 3: CDC 17

• Appendix 4: Intellikey 18

• Appendix 5: Other faults 19

• Appendix 6: CDC parameters 20

• Appendix 7: Indicator 23

• Appendix 8: Electrical schematics 27

• Appendix 9: Site log form 30

• Appendix 10: Revision number 31

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Safety

Danger of Hazard

•The drive has various voltages present on the power terminal

blocks and in cables connected to them that may cause fatal

electrical shocks.

•The drive contains capacitors which remain charged at a fatal

voltage for a period of time even after the power supply has been

removed.

•Do not perform operations on the drive without first manually

opening the power supply circuit to the drive. Lock out and tag out

the fused isolator or circuit breaker to prevent accidents.

•Please utilise extreme caution when performing work within the

starter cabinet with power on or off. Always use approved electrically

insulated gloves.

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Run and Monitor.

This step means that each time it will be necessary to check:

• Power Input Voltage displayed and compare with your meter between

each phases.

• DC Bus Voltage displayed and compare with your meter.

(See below restrictions regarding the Input and DC Bus voltage)

• Current Motor Amps displayed and compare with your meter, the output

• Current imbalance must not exceed ± 5% for each phase.

• Motor speed displayed (unstable, lower than speed reference asked).

• Motor noise or other abnormal noises.

• Motor vibration if mechanical issue has been resolved previously?

if trouble persists record the Alarms History information from CDC, list all

actions performed and contact Technical Support.

IMPORTANT!!

Drive Data

POWER INPUT VOLTAGE :

380 to 480 VAC ± 10%, 50 or 60 Hz ± 2% (HV Drives)

200 to 230 VAC ± 10%, 50 or 60 Hz ± 2% (LV Drives)

The phase voltage imbalance must not exceed 2% on 50hz units and 3% on 60Hz units.

DC BUS VOLTAGE :

Approximately equal to AC voltage multiplier by 1.4

Use CDC to record the Bus voltage when unit is not running.

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

WINDING INSULATION TEST (MEGGER).

• Isolate compressor from incoming Power Supply.

• Disconnect motor leads from the VSD.

• Connect one cable of the Insulation Tester on the main ground

Connect the other cable of the megohmmeter (Insulator Tester) to each motor

leads (one at a time, make sure you disconnect the brass bars from the stator

connection bloc). and test using 500V D.C. . Each motor leads should give a

minimum value of 10 M Ohm.

• AFTER MOTOR WINDING INSULATION TEST.

• AFTER STATOR REPLACEMENT.

! !

You must be sure that the motor leads are connected as

specified below :

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Compressor Trips on “Sec Disable” while

technician on site? – Toggle switch still on

“start” position and E-stop pulled ?

Check connections on E-stop (ESA1

and ESA2) – Connections OK?

Do not touch the toggle switch nor the E-stop.

8.09=“enable”? (8.02 must be=“active”)

Yes

Fix connection

Problem likely to be linked to: E-Stop / Wiring

or connection issues

Yes

Switch the toggle switch to the stop

position

Turn toggle switch to “stop” – Push & pull the

E-stop 10 times – Read 8.09 after each try

8.09 = “Enable” when E-stop pulled

& 8.09 = “Disable” when E-stop pushed ?

(Note : the “sec. disable” will be reset after

the first sequence of push/pull)

Problem may occur only when compressor is

running

Yes

Disconnect ESA1 & ESA2 so that the E-Stop is

no longer connected to the pins 13 & 14 –

Make contact between these two connectors

8.09 = “Enable” when ESA1 & ESA2 are in

contact

& 8.09 = “Disable” when no contact?

E-stop does not work properly – Change E-

Stop and restart the procedure

(with a multimeter, you can check the

resistance between ESA1& ESA2 Must read 0

ohm when the E-stop is pulled and OL ohm

when the E-stop is pushed)

Yes

Remove drive cover and check connections

(especially pins 13 & 14) – Connections loose

or misconnected cables?

Tighten the cables and re-conduct procedure -

Problem solved? (8.09 = “Enable” when E-stop

pulled out

& 8.09 = “Disable” when E-stop pulled in)

Yes

Contact IR customer’s service

Problem was due to misconnected cables

Yes

“SECURE DISABLE” FAULT TREE

Unit trips while running

Power outage is unlikely

More than 3 consecutive “sec.disable” fault in the memory

See Appendix 1 for detailed explanation

on Sec Disable fault message

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Hats switch physically damaged / not connected ?

Yes

“USER 1” FAULT : THERMAL ISSUE (OVERHEATING MOTOR and/or COMPRESSOR)

(“User 1” fault displayed and 8.03 shows “disabled”)

DRIVE CONTINUOUSLY ON USER1 FAULT

Prior to troubleshoot the unit, let it cool down for 15 minutes

Problem is likely to be due to :

Loose / damaged cable

Defective Hats switch / thermal sensor in the motor

Wrong harness

Replace Hats switch – Try to start the unit –

Does it keep tripping continuously

Open drive –Loose connections ?

(inputs # 10 and 13)

Yes

Problem fixed

Reconnect – “User 1” fault can

be reset and unit restarts ?

Yes

Disconnect 10 and 13 and

check continuity –

Continuity OK ?

Phase I-II harness

Nirvana harness

Swap drive – Mount a

new drive – Problem

fixed or contact

Ingersoll Rand

Yes

Molex connector ok

(male and female

parts well connected

and no loose cable) ?

Disconnect two parts –

Motor thermal sensor

continuity OK ?

Yes

Swap stator – Unit

restarts ?

Reconnect -

Continuity OK ?

Drive restarts?

Yes

Cable cut or

disconnected between

drive inputs and hats

switch

Repair or replace

broken cable – Drive

restarts ? User 1

fault can be reset ?

Yes

See Appendix 2 for detailed explanation on User 1 fault message

Replace hats switch –

Drive restarts ? User

1 fault can be reset ?

Problem fixed

Yes

Contact

Ingersoll Rand

Yes

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

“USER 1” FAULT : compressor trips on «User 1»on regular basis or and after

few minutes of running

Prior to troubleshoot the unit, let it cool down for 15 minutes

Problem likely to be due to :

-Cooling issue:

-Dusty pre-filter

-Blocked coolant cooler

-Blower not rotating (circuit breaker, fuses, fan

relays)

-Blower rotating in the wrong direction

-High ambient temperature (refer to User Manual)

-High current on stator ( thermal switch with Nirvana stators)

-Low coolant level

-Blocked thermostatic valve

- Mechanical issues within the drivetrain

See Appendix 2 for detailed explanation on User 1 fault message

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Check power supply cables –

Everything OK ?

Yes

“OI-AC OVER CURRENT” : peak current that exceeds the hardware limit

of the drive

Repair or replace

cables

Check NDE bearing &

airend – OK?

Replace NDE bearing or /&

airend

Disconnect the output leads of the drive

Megger the stator (500V D.C.)

Insulation resistance < 10 MOhm ?

Yes

Replace stator

Yes

Compressor keeps

tripping on “OI-AC” ?

Problem fixed

Contact Ingersoll

Rand

Yes

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Check parameter 5.07

High voltage drive : 5.07 = 34 Amps

Low voltage drive : 5.07 = 54 Amps

Yes

“Motor I²t” : motor current (4.01) exceeds value set in parameter 5.07

Should go through similar process if:

High voltage drive: current > 23 Amps

Low voltage drive: current > 45amps

Contact Ingersoll

Rand

Reset the fault

Start the compressor and check

parameter 4.01

4.01 > 5.07 ?

Is incoming voltage within the

tolerances ?

High current consumption likely to be due to

abnormal torque requirement –

eg:

-NDE bearing

-Tight airend

-Low coolant level

Yes

Bring power supply

within tolerances

Yes

Contact Ingersoll

Rand

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Compressor runs (provides

compressed air) ?

Yes

CDC DOES NOT WORK ON THE COMPRESSOR – FAULT TREE

Open drive –

Voltage on

L1,L2,L3 inputs ?

Power cables OK ?

Faulty

drive –

Replace it

Reset the compressor with the reset procedure

(toggle switch on stop position then

push and pull

the E-stop twice) – Put toggle switch on start

position – Compressor restarts ?

Yes

Check all

power

connections

Yes

Reconnect/replace

cables – Problem

fixed ?

Situation :

CDC that works on other compressors does not work on a particular unit

24V (inputs 5 & 8) & 10V (1

& 5) supplies OK AND led

on top of the control board

is green? * see note

Does the

CDC work ?

Yes

Troubleshooting

over

Yes

Unscrew the small plate on which the black

connector is fixed. Make sure that the cable

coming from the drive is well fitted into this

connector. Every thing OK ?

Yes

Try to fix the connector and start procedure again –

If connector is damaged or if the cable can not stay

in position, this part has to be changed

Open the drive – Cable is well in

position in the RJ 45 connector?

Yes

Remove cable and connect the

CDC directly to the drive

CDC works ?

Yes

Failure of a component on the

control board – Replace drive

Reconnect the cable

Problem fixed ?

Defective cable –

Replace it

Yes

* Note: voltage can be missing due to faulty components. Check components individually if necessary

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

OTHER FAULT CODES

Fault code Code Description

EEF

other codes

Checks

With volt meter or some type of voltage measuring device,

check for voltage spikes or high voltage on incoming

power supply. Check para 5.05 DC Bus on CDC. Megger

stator, if ok, contact Ingersoll Rand

See User1 situation page 9, check current drawn from

stator, if all checks are good, replace drive. Contact

Ingersoll Rand (bad setting or defective drive)

OU D.C

over volt

Over Voltage of Input

to Compressor

User 2

Eprom Failure

Check Drive setting, if ok, call Customer Services.Not listed

Change drive.

O.Ld /

24V over Id

Over Temperature Of

Drive

Electronic 24 Volt

Power Supply

Overload

The load on the 24V supplx exceeds the maximum current

that the supply can provide. Likely due to bad wiring, issue

with one component connected to the 24V supply.

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

“SECURE DISABLE” FAULT – GENERAL INFORMATION

What is the “Secure Disable “mode?

The secure disable mode is a mode that is selected to protect the workers from any unattended restart of the

compressor.

When the secure disable mode is selected (phase II and III machines), the end-user must start/stop the

compressor as described down below :

•To enable & start the compressor : first 8.09 turned to “Enable” (pull E-stop) then 8.02 turned to

“Active” (switch toggle switch to “start”)

•To stop & disable the compressor : first 8.02 turned to “Inactive” (switch toggle switch to “stop”) then

8.09 turned to “Disable” (push E-stop)

The drive trips on “Secure Disable” any time one of this two procedures is no followed : 8.09 turned to

“Enable” while 8.02 is already “active” / 8.09 turned to “Disable” while 8.02 is still “active”

How to reset a “Secure Disable” Fault

The “Secure Disable fault can not be reset automatically by the drive. Has to be done manually, with the

following procedure :

- switch toggle switch to stop

- push and pull the E-stop once

In practice, what can lead the drive to trip on “secure disable”?

Three situations that are to be considered in accordance with the design of the product :

•E-stop is hit while the compressor is running Î drive trips once the E-stop is pushed. The VSD will show a

“Secure Disable” alarm.

•Power outage that lasts more than 200ms Î trips once the power comes back if the toggle switch is still on

the “start” position. The VSD will show a “Secure Disable” alarm.

•The “secure disable fault” is triggered right after a resetable fault, when the drive tries to reset the fault. The

VSD will show a “Secure Disable” alarm.

Other situations that are to be considered as a malfunction/problem:

•Defective E-stop Î the state of the output signal coming from the E-stop changes “by itself”, without

touching the red button (mechanical problem within the E-stop)

•Wiring issues or loose connections within the drive (harness connected to the drive) or with the E-stop (8.09

turns to 0 any time the SDI1 input is no longer connected to the +24V supply)

•Vibrations related issue (relays in the drive opens due to vibrations) – Contact Ingersoll Rand.

Appendix 1

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

“SECURE DISABLE” FAULT – GENERAL INFORMATION

Importance of knowing the frequency of “Secure Disable” fault.

Depending on the frequency with witch the drive trips on “Sec. Disable”, we can consider that some

explanations are more likely than others.

•If there is a problem with the wiring, the connections, the E-stop or a problem of vibration, we can expect the

drive to trip several times a day or even an hour.

•If the drive trips only few times a week or less, the problem may come from the supply (power outage)

Every information is important and may help the us to find the root cause of the problem.

Example : if the drive trips on “sec. disable” only when running at certain speeds, that may suggest a

vibration related issue.

Appendix 1 cont.

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

“USER 1” FAULT – GENERAL INFORMATION

•What is the “USER 1” fault?

The compressors are fitted with one or two thermal sensors (depending on the generation of the

compressor) to detect any overheating and stop the unit when the temperatures are over the limits.

– Phase I and Phase II units : only one sensor (HATS switch) on the compressor itself

– Phase III units : HATS switch plus a thermal sensor within the motor

The drive trips on “User 1” anytime one sensors is trigged.

Note : On Phase III units, the two sensors are in series, which means that the drive trips on “User 1”

anytime one of these two sensors opens.

In practice, what can lead the drive to trip on “User 1”?

The drive trips on “User 1” to protect the units from overheating. Anyhow, several other issues might lead

to such trip.

– Defective sensors (HATS switch and/or thermal sensors in the motor) Î sensor trips even though

the temperatures are still below the limit

– Wiring issues or loose connections within the drive (harness connected to the drive) or with the

HATS switch or with the thermal sensor in the motor

•Importance of knowing the frequency of “User 1” fault.

Depending on the frequency with witch the drive trips on “User 1”, we can consider that some explanations

are more likely than others.

– If there is a problem with the wiring, the connections, or the sensors themselves, we can expect

the drive to trip almost continuously or at least several times an hour.

– If there is a problem with the cooling, we can expect the drive to always trip after several minutes,

when the temperatures exceed the threshold limits.

– If the drive trips only few times a week or less, the compressor might actually exceed the

temperatures from time to time

After opening, it takes several minutes for the HATS switch and the motor thermal

switch to close – The drive keeps tripping on “User 1” if attempt is made to restart

the compressor during this period of time

Appendix 2

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Joypad :

The up and down arrows allow you

to navigate through the Drive read

only settings and the last ten

defaults.

CDC

When plugged into the RJ45, this will allow the technician to have access

to the drive internal values for troubleshooting. The connection for the

CDC is located under the compressor canopy.

No attempt should be made to tamper with the CDC parameters and

adjustments must not be made to the original settings.

CPN. 22408751

Memory :

This button will allow you to select

and change the language of your

choice.

Stop :

This button will allow you to stop

the compressor without pressing

the E-stop.

Appendix 3

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

1. Turn the “On/Off” switch to the OFF position (phase II and

Nirvana), press the E-stop, remove compressor canopy

and then insert the Intelli Key.

2. Firmly press the Intellikey once and HOLD for three seconds

then release. Pause for one second and press again for one

second then release.

A green light will lit on the Intellikey and will stop after about 10s

confirming that the desired settings have been successfully

down loaded into the compressor. The Intellikey should now be

removed.

3. The Unigy compressor now has the desired customized settings and

is now ready for operation. You will now, need to set the desired

pressure by rotating the potentiometer and select the compressor

fixed or variable speed with the toggle switch.

Down for variable speed, and Up for fixed

speed.

RJ45 connector is used for the Intellikey

and the read only CDC.

The potentiometer is for setting the desired pressure, by rotating Left or Right.

Always check: Intellikey being used is compatable with the Machine.

Appendix 4

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Blower motor will not

run

Check the incoming power supply and circuit breaker to the blower

If the above checks are bad,check E-stop operation.

Check for 24 volt DC power supply from the drive to the blower motor

relay when the start button is depressed. You will also see a red light

on the relays when the start button is depressed.

If the drive 24 volt DC output is not there, replace drive.

Plug CDC into compressor and with the up and down arrows, go to

parameter 8.04. This parameter should read ENABLED for variable

speed and DISABLED for fixed speed.

With CDC, press the up and down arrows to view parameter 7.01.

Rotate the potentiometer from left to right, the value you should read

is 97% (47% TAS) or better when completely turned to the right. If the

value is less than 97% (47% TAS), investigate further

With power off, see if blower will rotate freely by hand.

Program might not be in keyed properly, test with new key

Red indicator light is on

and motor icon appears

in indicator window

If compressor does not run, drive has a fault, CDC will be needed to

view the fault code.

If compressor runs, check wiring between drive health relay (pin17)

and hourmeter (loss of signal).

Compressor has power

but will not start

If the above checks are good, replace drive.

Compressor will not run

variable speed

Check the position of the fixed / variable speed selector for it's

position, choose your desired setting.

Plug in CDC to view parameter 8.02, the display should read

DISABLED. When the start button is depressed, the readout will

display ENABLED momentary.Check Control Voltages and DC Bus

Check the E-stop position to ensure the E-stop has not been

depressed.

Look at the compressor display indicator to see if the compressor has

reached it's maximum pressure. If maximum pressure has been

reached, compressor will not start.

If you have the 24 volt DC to the relay and circuit breaker ok then,

replace blower motor.

Appendix 5

Danger

Please utilise extreme caution when performing work within the compressor. Wear appropriate PPE

(Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures

Factory Settings

HV (380-460 Volts)

11kW / 10bar 11kW / 8bar 7.5kW / 10bar 7.5kW / 8bar 5.5kW / 10bar 5.5kW / 8bar

15HP / 150PSI 15HP / 115PSI 10HP / 150PSI 10HP / 115PSI 7.5HP / 150PSI 7.5HP / 115PSI

1.06 Limit Maximum (speed) 5800 6755 4065 4670 3150 3600

1.22 Limit Maximum (speed) 0 0 0 0 0 0

4.01 AMP READ READ READ READ READ READ

5.01 Frequency READ READ READ READ READ READ

5.02 Motor Voltage READ READ READ READ READ READ

5.03 Output Power READ READ READ READ READ READ

5.04 Motor Speed READ READ READ READ READ READ

5.05 DC Bus Voltage READ READ READ READ READ READ

5.06 Motor Nominal Frequency 84 84 84 84 84 84

5.07 Motor Nominal Current 34 34 34 34 34 34

5.08 Motor Nominal Speed 5040 5040 5040 5040 5040 5040

5.09 Motor Nominal Volts 370 370 370 370 370 370

5.11 Motor Poles Automatic Automatic Automatic Automatic Automatic Automatic

5.12 Autone Off Off Off Off Off Off

6.04 Start/Stop Logic Select Run no Latch Run no Latch Run no Latch Run no Latch Run no Latch Run no Latch

6.10 Low or High Voltage setting

6.30 Drive Output Achieved

7.01 POD (REF ONLY)

7.02 Pressure Transducer (REF ONLY)

7.03 POD (REF ONLY)

7.06 ANA/DIGIT Input

8.01 Fan Control Running

8.02 Start Button

8.03 H.A.T.S.

8.04 Fixed / Constant speed

8.09 E-stop

8.31 Fan Output

10.20 10 Last Fault Codes

10.34 Reset Fault Times 5 5 5 5 5 5

14.14 PID Low Limit 43 30 62 43 79 55

22.01 Drive Type 12,5HxLV34 12,5HxLV34 12,5HxLV34 12,5HxLV34 12,5HxLV34 12,5HxLV34

The readout on the CDC will show ENABLED when blower is running. When not running

the read will show DISABLED.

DISABLED = High voltage.

Turn the knob for the Potentiometer and notice the percentage value move down when

the knob is turned to the left and to the right the value goes up to 100% (50% TAS).

Turn the knob for the Potentiometer completely to the right, the value to be read is 100%

(50% TAS). If value is lower than 97% (47% TAS), investigate further

Enabled = compressor running / Disabled = compressor not running.

Pressure feedback

ANA/DIGIT Input 1 mode

Fan output digital 1

Display of the last ten faults

When compressor is not running this parameter will read DISABLED, when start button is

pressed ENABLED will appear.

This parameter will show ENABLED, USER 1FAULT.

When the selector is in the constant speed position, ENABLED is displayed. When in the

fixed speed position, DISABLED will be displayed.

When the e-stop is open, the display will show DISABLED. When the e-stop is closed, the

display will show ENABLED.

With the CDC you will have access to all of these parameters when using the Up

Down arrows. ( High voltage )

Appendix 6

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Ingersoll-Rand Nirvana 5.5 Troubleshooting Manual

Ingersoll-Rand Nirvana 5.5 Troubleshooting Manual

Ingersoll-Rand Nirvana 5.5 Troubleshooting Manual

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