Novanta v40 User Manual page 89

RESETTING FAULTS
Shutter
A closed shutter is not considered a fault condition. When the shutter is opened (or a Shutter Open
Request signal is applied), lasing is enabled after a five-second delay provided that the RDY indicator is
illuminated yellow.
Under/over voltage fault
An under voltage or over voltage fault occurs when the DC input voltage is below or above preset limits.
This fault is indicated by the RDY indicator flashing 1 blink (under voltage) or 2 blinks (over voltage). To
reset an under voltage or over voltage fault, ensure that 30 VDC is applied to the laser under full load
conditions, cycle DC power off and on, and then toggle the Keyswitch from OFF to ON (or apply a ±5–
24 VDC Remote Reset/Start Request pulse with the Keyswitch set to ON). When the RDY indicator
illuminates, lasing is enabled after a five-second delay.
RF Drive DC fault
An RF Drive DC fault is indicated by the RDY indicator flashing 3 blinks. Reset the laser by removing DC
power to the laser, wait 30 seconds, and then reapply DC power. If the RF Drive DC fault reappears,
contact NOVANTA or a NOVANTA Authorized Distributor.
PWM Drive fault
A PWM Drive fault is indicated by the RDY indicator flashing 4 blinks. Reset the laser by removing DC
power to the laser, wait 30 seconds, and then reapply DC power. If the PWM Drive fault reappears,
contact NOVANTA or a NOVANTA Authorized Distributor.
OEM lasers
On v40 OEM lasers, remote interlock (INT) faults are not latched. Clearing the fault condition re-
enables the RDY indicator and the laser will fire after the five-second delay provided that the SHT
indicator is lit and a PWM Command signal is applied. Because exposure to 10.6 μm CO2 laser
radiation can inflict severe corneal injuries and seriously burn human tissue, the OEM or System
Integrator must ensure that appropriate safeguards are in place to prevent unintended lasing.
Remote interlock fault
A remote interlock fault occurs when the Remote Interlock input opens (the INT indicator changes from
green to red). On OEM lasers, remote interlock (INT) faults are not latched. Re-establish the Remote
Warning: Serious Personal Injury
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