Novanta v40 User Manual page 90

RESETTING FAULTS PAGE | 90
Interlock signal input (INT indicator changes from red to green) to enable the RDY indicator and begin
lasing after the five-second delay.
Over temperature fault
Over temperature faults occur when thermal limits in the laser are exceeded (the TMP indicator changes
from green to red). Beginning with OEM D version v40 lasers, over temperature faults are now latched.
To reset an over temperature fault, lower coolant temperature below 22 °C (water-cooled) or below 40
°C (air-cooled) and then cycle DC power to the laser. Once the RDY lamp is lit, lasing is possible after the
five-second delay.
Note: Over temperature faults are not latched on earlier OEM v40 lasers. Cool the laser until the TMP
indicator changes from red to green. After the RDY lamp lights, lasing is possible after the five-second
delay.
Shutter
A closed shutter is not considered a fault condition. When 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 and then cycle DC power. 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.
Other laser faults
When a laser fault occurs, 's status LEDs and output signals will reflect a fault condition as indicated in
the prior tables. Each Symptom listed below describes a particular fault condition. For each Symptom,
specific causes and solutions are described under Possible Causes.