maintenance/
troubleshooting
76
SYNRAD OEM v30 Operator’s Manual Version 2
Troubleshooting
Possible Causes:
■
An DC Sense fault has occurred.
If this fault occurs, the laser requires service—contact SYNRAD Customer Service or a SYNRAD Autho-
rized Distributor.
Symptom:
■
The following status LED and I/O states exist:
LASE LED – Off
Lase Indicator
– Low (0V)
RDY LED –
Flashing
Laser Ready –
Low (0V)
Laser OK –
Low (0V)
PWR LED –
Flashing
Overtemp Fault – Low (0V)
Temperature OK – High (+5V)
DC Voltage Fault – Low (0V)
Voltage OK
– High (+5V)
Possible Causes:
■
A PWM Sense fault or control board failure has occurred.
If this fault occurs, the laser requires service—contact SYNRAD Customer Service or a SYNRAD Autho-
rized Distributor.
Symptom:
■
The power supply is connected and DC voltage is correct, but the following LED and I/O states exist:
LASE LED – Off
Lase Indicator
– Low (0V)
RDY LED – Off
Laser Ready
– Low (0V)
Laser OK
– Low (0V)
PWR LED –
Off
Overtemp Fault – Low (0V)
Temperature OK –
Low (0V)
DC Voltage Fault – Low (0V)
Voltage OK
– Low (0V)
Possible Causes:
■
The 20 A fast-acting fuse has blown.
To replace the fuse, open the inline fuse holder (located on the positive DC power cable) by twisting the
upper half 1/4 turn counter-clockwise. Remove the fuse and replace it with a 20 A, 250 V fast-acting fuse
(Cooper Bussmann ABC-20-R, Littelfuse 314020, or equivalent).
Interface A (DB-9)
Symptom:
■
The built-in +5 VDC, 250 mA voltage output on Pin 5, DC Out, was accidentally shorted to ground.
Possible Causes:
■
In the event that Pin 5, DC Out, is shorted to ground, the OEM v30 laser will not be damaged as the
voltage regulator is protected by a current-limiting circuit. Remove the short circuit to re-enable the
voltage output.