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 – O 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 – O Lase Indicator – Low (0V)
RDY LED – O Laser Ready – Low (0V) Laser OK – Low (0V)
PWR LED – O
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.
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