- Quantum Cascade Laser Starter Kit Instructions Manual

Starter Kit Instruction Manual Use 34
6.5 Interlock utilisation
The temperature controller is designed with an built-
in interlock (1). This function is activated when a
fault occurs on the TCU151 controller (over-temperature,
over-current, etc.).
The interlock is by default a NC (Normally Close)
relay contact.
CAUTION ! It is also possible to set the Inter-
lock as a NO (Normally Open) contact. For more
details about the settings, see the procedure on page
42.
6.5.1 Before beginning
In order to recover the tempera tur e controller from
an interlock event, please pay attention about the
following points:
• Lo cate the fault which caused the interlock
and fix it.
• Wait until the temperature driven by the TCU151
is lower than the maximum.
6.5.2 Procedure Inter lock utilisation
To reset the temperature controller from an inter-
lock event, proceed as follows:
[1] Press the RESET button (3) on the TCU151
front panel
,→ The interlock is reset and the red LED
ALARM (2) should be off.
0
1
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Fig.24: Interlock BNC connector
A
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Fig.25: Reseting the interlock