Copyright © 2017 Thorlabs
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TED4015
6.6 Error Messages
6.6.1 LED Status Messages
TEC ON switch LED
Description
Green
TEC output ON
Green flashing
·
Temperature out of window (temperature protection)
·
PID Auto-Tune is running
Red
Critical errors:
·
No sensor
·
No cable
·
TEC open
Red flashing
Internal device overtemperature (OTP)
6.6.2 Status Indicators
The TED4015 has various status indicators in the bottom line.
The meanings are:
Status indicator
description
OTP
The unit is internally overheated. The TEC output is switched off
and can be switched on again after a temperature drop of about 10
degrees
REMOTE
TMC-ID
LOCK
The unit is in remote operation
The unit is in TMC identification (via remote)
The unit is in remote operation and a local operation is locked.
ERROR
Interface error indicator. There are errors stored in the device's er-
ror queue. They can be read using the syst:err? command
PID
The PID auto-tune process is running
CABLE
Indicates an incorrect wiring to the TEC setup
SENSOR
A wrong sensor is selected or the sensor lines are broken
T PROT
The current TEC temperature is outside the preselected tempera-
ture window and the temperature protection is active.