3.2.5 25-way PLC interface
Observe the EMC requirements when connecting the control cables.
Operation
20
Pin assignment for the 25-way PLC interface
Pin Assignment Function Ref. potential
1 Remote[H] Activates by a H level the inputs Start[H], Stop[H],
(input) option 1 to 3 [H] Control GND
2 Start[H] PLC H pulse starts the pump, provided Remote[H] = H Control GND
(input) (duration > 99ms)
3 Stop[L] PLC L pulse stops the pump, provided Remote[H] = L Control GND
(input) (duration > 99ms)
4 Control GND Reference ground for floating PLC control inputs
5 Supply GND Reference ground of for auxiliary power supply pin 6
6 PLC-H signal and Auxiliary power supply for externally connected equipment. Supply GND
power supply The output voltage corresponds mainly to the input voltage
delivered by the host, output voltage 24 V DC
Current output 80 mA
Current limiting without foldback characteristic, no shutdownin case of
excessively high currents, however shutdown in case of overtemperatures.
7 reserved
8 Error (relay) Collective error message, active in case of a fault (n.o.) Pin 8
9 Error (relay) Collective error message, com.
10 Normal (relay) Final rotational frequency has almost been attained (n.o.). For function Pin 11
and threshold the parameters 25, 27 and 29 apply. See parameter 237
11 Normal (relay) Final rotational speed has almost been attained, com.
12 Option relay 2 Normally open contact (n.o.) enabled with valve and forevacuum;
see parameter 240 Pin 13
13 Option relay 2 com.
14 reserved
15 reserved
16 Option relay 1 Assigned to run-up, com.; see parameter 239
17 reserved
18 Option relay 3 Normally open contact (n.o.).assigned with function “motor current”;
see parameter 318 Pin 19
19 Option relay 3 com.
20 Option relay 3 n.c. Pin 19
21 Error (relay) Collective error message (active in case of a fault), (n.c.) Pin 8
22 reserved
23 Option relay 1 Is enabled in case of a speed increase, normally open (n.o.);
see parameter 239 Pin 16
24 reserved
Casing Frame GND Connected to frame ground (PE)
PLC = Programmable logic controller [H] = PLC high level > 11 V [L] = PLC low level < 8 V
Inputresistance5…6kΩExternalvoltageresistance±40VDC
The reserved pins must not be used.
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