GSI Group - Laser Division
JK300HP/JK300P/JK125P
Pre-installation and User Manual Issue 2.0
Page 92 of 172 Part No: 1EA300E01
Possible causes:
1. Wiring fault in the power supply demand.
2. Faulty pulse generator card.
3. Faulty power supply.
7.6.15 Alarm 4n15 : Power Supply IGBT Fault
Meaning:
The power supply IGBT is faulty.
Possible causes:
1. Faulty power supply.
7.6.16 Alarm 4n16 : Power Supply Earth Fault
Meaning:
The power supply has detected earth leakage current.
Possible causes:
1. Broken lamp.
2. Lamp lead damage.
3. Lamp lead connection problem.
4. Faulty Power Supply.
7.6.17 Alarm 4n17 : Power Supply Input Voltage Loss
Meaning:
The power supply input voltage has fallen below operating limits while the laser was running.
Possible causes:
1. Mains input power interrupt.
2. Faulty mains input connections.
3. Faulty power supply.
7.6.18 Alarm 4n18 : Power Supply Contactor Out Fault
Meaning:
The power supply contactor is out when it should be in. The power supply should be on.
Possible causes:
1. Unexpected shutdown.
2. Faulty power supply.
7.6.19 Alarm 4n19 : Power Supply Shutdown During Operation
Meaning:
The Interlock Module detected power supply n had shut down while the laser was on.
Possible causes:
1. Unexpected shutdown.
2. Faulty Power Supply.
3. Faulty Interlock Module.
Petitioners Canadian Solar Inc. and Canadian Solar (USA) Inc.
Ex. 1025, p. 92