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Installation and operating manual
4.5. Connection of voltage supply to the power control board
The voltage 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 / +
4.6. Connection of 4 ... 20 mA interfaces on the operating electronic printed circuit board
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 interface is implemented according to the following terminal assignment:
X4.4 = - (empfohlen)
X4.5 = + (empfohlen)
4.7. Connection of equipotential contact to the operating electronic printed circuit board
An equipotential contact is available for issuing alarm signals. The connection for the equipotential contact is 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
malfunctions, errors, faults and troubleshooting" on Page 52.
26
24 mA
DRYPOINT
M eco control
®
EN
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