Novanta SYNRAD Pulstar p100, Руководство пользователя

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LASER FAULT INDICATIONS PAGE | 76
the User I/O connector so that Pin 15 (Input Common) is jumpered to Pin 12 (Auxiliary DC Power
Ground) and Pin 14 (Shutter Open Request) is jumpered to Pin 4 (+5 VDC Auxiliary Power).
When a Shutter Open Request signal is applied to the laser, PWM Command signals are inhibited until
the shutter circuit is fully enabled.. When the Shutter Open Request signal is removed from Pin 10, PWM
Command signals are inhibited. Tickle pulses signals continue to be applied to the RF modules during the
close/ open shutter circuit interval.
Possible Causes:
• The (Optional) Quick Start Plug or Remote Interlock/Shutter Open Request inputs are not
connected to the User I/O connector.
Connect the Quick Start Plug or interlock/shutter input field wiring to the DB-15 User I/O connector. See
User I/O connections in the Technical Reference chapter for wiring details.
Laser Fault Indications
p100/150 lasers have the ability to indicate eight specific fault conditions. In the event of certain faults,
the RDY LED will blink an error code, pause four seconds, and then repeat the error code. This sequence
continues until the fault is corrected and the laser is reset by cycling DC power to the laser. If a No-Strike
condition occurs, the SHT LED flashes continuously until the gas breaks down into a plasma state.
Refer to the p100, p150 Input/Output & LED Status Signals table above for a status list, corresponding
fault, and description in the comments for basic corrective action.
Possible Causes:
• Coolant temperature is above 28 °C (82 °F) or there is inadequate coolant flow through the laser.
Check that your chiller is maintaining a water temperature between 18 °C–28 °C (64 °F–82 °F) at
a flow rate of 7.57 liters per minute (2.0 GPM).
OEM lasers can be operated at coolant temperatures up to 28 °C (64 °F to 82 °F) at a flow rate of 11.4
liters per minute (3.0 GPM).
If water temperature is OK, check the flow rate. If a flow meter is not available, disconnect the cooling
tubing from the chiller inlet (or the drain) and run the cooling water for 30 seconds into a five-gallon
bucket. After 30 seconds, a minimum of 1.5 gallons or (5.8 L) should be collected. If there is less than 1.5
gallons or (5.8 L), check the cooling path for kinked or pinched cooling tubes or check the chiller for a
clogged or dirty filter.
On p100/150 lasers, the over-temperature fault is indicated by a red TMP indicator (latched status). If an
over-temperature condition occurs, the TMP indicator will turn red, the Fault Detected output will latch,
and the RDY indicator light will turn off. Lasing will become disabled. Due to the latched condition, the
TMP indicator will remain red even after the laser has cooled sufficiently to begin operation. To reset an
Warning: Serious Personal Injury
On p100/150 OEM lasers, remote interlock faults are not latched. Clearing the fault condition re-
enables the RDY indicator and the laser will fire after the five-second delay provided the SHT
indicator is lit and a PWM Command signal is applied. Because exposure to 10.6
μ m 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.