9 Fault Recognition and Rectification
9.1 Basic Information
The following tables are intended to assist in locating causes of faults.
There are three types of fault:
■ Alarm: red LED flashes - see chapter 9.2.
■ Warning: yellow LED flashes - see chapter 9.3.
■ Other faults: no indication - see chapter 9.4.
The messages valid for your machine are dependant on the controller and individual equipment.
1. Do not attempt fault removal measures other than those given in this manual.
2. In all other cases:
have the fault rectified by an authorized KAESER Service representative agent.
9.2 Alarm messages (machine shut-down)
Message
Possible cause
Remedy
blowoff prot. ↥
The activating pressure of the safety
relief valve on the oil separator tank
has been exceeded.
Change the oil separator cartridge
Open the shut-off valve in the vent‐
ing line.
AI1 open cct.
AI2 open cct.
Analog input open circuit.
Short to ground.
Check line and connections.
AI1 short cct.
AI2 short cct.
The connection between the sensor
and the analog input is shorted.
Check line and connections.
AI3/AI4 error
Line-break between the analog input
and the sensor.
Short circuit to ground.
Check line and connections.
AI5 open cct.
AI6 open cct.
Analog input open circuit.
Short to ground.
Check line and connections.
AI5 short cct.
AI6 short cct.
The connection between the sensor
and the analog input is shorted.
Check line and connections.
AI7/AI8 error
Line-break between the analog input
and the sensor.
Short circuit to ground.
Check line and connections.
model
Machine model uncertain
Call authorized KAESER Service
representative.
PD T ↧
Package discharge (PD) temperature
too low.
Call authorized KAESER Service
representative.
PD T ↥
Package discharge (PD) temperature
too high.
Check the cooling oil level
Clean the cooler.
Check the fan motor.
DO0.6/DO0.7 I ↥
Short circuit in the line between the
digital output and the consumer.
Check line and connections.
9
Fault Recognition and Rectification
9.1
Basic Information
9_5721 06 USE
Service Manual Screw Compressor
ASD T Tri-Voltage
51
Summary of Contents for ASD 25
Page 1: ...Service Manual Screw Compressor ASD T Tri Voltage 9_5721 06 USE...
Page 2: ...Original instructions KKW SASD 1 00 en 01 SBA SCHRAUBEN TRI VOLTAGE T SC...
Page 8: ...List of Illustrations vi Service Manual Screw Compressor ASD T Tri Voltage 9_5721 06 USE...
Page 10: ...List of Tables viii Service Manual Screw Compressor ASD T Tri Voltage 9_5721 06 USE...
