3.8 Status reporting
ITC500 / page 95
3.8.8 Device error condition register (DEC)
The bits of this register show the errors, that occur during operation (device errors).
The bits are active high.
If the error disappears, the bits are reset to low.
For an ITC5xx bits 0 ... 6, 8 are used:
(0) Over temperature
Internal temperature too high. Wait until the ITC5xx has
cooled down. Maintain proper air flow.
(1) Open circuit
Cable to the laser diode has opened.
Compliance voltage not high enough
(2) Interlock open
Interlock line is open.
(3) Current limit
The current limit is reached and the protection circuit is
active now. Noise and drift specs are not valid any more.
(4) Temperature window
The temperature module detected a temperature window
violation.
(5) Open circuit
The TEC element to has a too high resistance or is not
present.
(6) No sensor
A wrong temperature sensor is connected to the output
jack, or the contact is bad.
(8) Power supply error
Internal power supply error.
The DEC can be read but not set. Reading does not clear the DEC.
Summary of Contents for ITC502
Page 2: ...Version 2 16 Date 25 07 2006 Copyright 2006 Thorlabs ...
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