Controller type D42/D41 D32/D31 D22/D21 D12/D11
SPIR410 /
SPIR290
Safety chain Manual shutdown Toggle setpoint Defrost
If a 230 V AC voltage is present at a digital input, the associated red LED lights. For details see
chapter .Status LEDs, page 47
7.5 Assignment of the 0..10 V analogue outputs DEF
Warning about dangerous electrical voltage! If mains power to the analogue outputs, this results in
destruction of the controller!
Malfunctions due to interference: All supply lines from and to the case controller must be shielded
(cable type: LiYCY)! If sensor cables are exclusively laid within the refrigerated case to be monitored
and sources of interference (e.g. parallel power lines) are not anticipated, then it is possible to
dispense with shielding. As a general rule, care should be taken to ensure that signal cables and
cables carrying mains voltage are routed in separate cable channels
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