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Installation and operating manual
4.4. Connection of voltage power cable to power supply board
The voltage power supply connection has been provided at the factory and is therefore no longer required.
The terminal assignment is as follows:
X1.1 = N / -
X1.2 = L / +
4.5. Connection of 4 ... 20 mA interfaces on the control unit PCB
Utilising the 4 ... 20 mA interfaces will enable the issuing of the currently measured pressure dew point (depending on
operating mode).
4 mA ≙ -48 °C
20 mA ≙ +25 °C
Increments: 0.5 °C
Output value in case of error
The connection for the 4 ... 20 mA interfaces will be executed via the following terminal assignment:
X4.4 = - (empfohlen)
X4.5 = + (empfohlen)
4.6. Connection of equipotential contact on the control unit PCB
An equipotential contact is available for issuing alarm signals. The connection for the equipotential contact will be executed
according to the following terminal assignment:
X4.1 = n.o.
X4.2 = com
X4.3 = n.c.
5. Commissioning
After successful assembly in the pipework and the electrical installation the drying system can be put into operation. To do
this, connect the power plug to the electrical power mains and slowly pressurise the pipework.
The red warning LED can illuminate at the beginning of commissioning as the device normally takes a few minutes to
achieve the set degree for drying. Should the red warning LED continue to illuminate then refer to "Remedying errors, faults
and troubleshooting" on Page 32.
24
24 mA
DRYPOINT
M eco control
®
EN
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