ECKELMANN UA 400, Operating Instruction

Page: 119 / 401

Firmware V3.15 21.04.2021 119/401
7.10 Terminal assignment of the 4..20 mA analogue inputs
Connection of pressure transmitters / humidity sensors (only analogue input 2)
Controller type Terminal No. Analogue input AIN1 Analogue input AIN2
All controllers 11 +24 V DC +24 V DC
12 AIN1 (4..20 mA)
sans fonction –
13 GND GND
14 – AIN2 (4..20 mA)
sans fonction
Warning about dangerous electrical voltage! If mains power is connected to the analogue inputs,
this results in destruction of the controller!
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Malfunction 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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