11.0 FAULT FINDING

FAULT

 

CAUSE

REMEDY

Remote start failure

 

Remote start button is pressed

Check operation of buttons or operating

 

 

after machine is running or

procedures

 

 

remote start button remains

 

 

 

closed.

 

Remote stop failure

 

Remote stop button remains

Check operation of buttons or operating

 

 

open and either start button is

procedures

 

 

pressed

 

Sensor failure

 

Sensor is missing or faulty

Install, repair or replace faulty sensor

Compressor trips indicating a

 

Insufficient cooling taking place

If machine is watercooled or sea watercooled,

high compressor temperature.

 

 

check that the cooling water is flowing. Check

 

 

 

that there is no air in the water cooling system.

 

 

 

Check that the strainer is not blocked.

Intellisys controller has

 

A fault has occurred

Repair fault / reset Intellisys controller

tripped the compressor

 

 

 

Invalid Calibration

 

Calibration done with pressure

Depressurise and re calibrate with pressure pipe

 

 

in compressor.

to sensor disconnected. If fault still exists, replace

 

 

 

pressure transducer.

Low sump pressure

 

System leak

Located and repair

 

 

Minimum pressure check valve

Repair with service kit

 

 

faulty

 

 

 

Blowdown valve faulty

Repair with service kit

 

 

Loss of control power

Check 110V circuit breaker

 

 

 

Check wiring

 

 

 

Check contactor KM1

Check motor rotation

 

Drive system fault

Contact your local IR representative

VSD communication failure

 

Communication wiring faulty

Check and replace if required

 

 

Drive faulty

Contact your local IR representative

 

 

Intellisys faulty

Contact your local IR representative

VSD initialisation fault

 

Communication wiring faulty

Check and replace if required

 

 

Drive faulty

Contact your local IR representative

 

 

Intellisys faulty

Contact your local IR representative

IRN37 - 160K - CC & IRN50 - 200H & IRN75 - 160K - 2S & IRN - 100 - 200H - 2S & IRN 250 - 300H - 2S

95

http://air.irco.com

 

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Ingersoll-Rand IRN50-200H-CC, IRN37-160K-CC, IRN250-300H-2S, IRN75-160K-2S manual Fault Cause Remedy, Pressure transducer