Description
2.4 Digital inputs and outputs
PAC3120 and PAC3220
Equipment Manual, 10/2019, L1V30425208F-01
27
Wiring
Switch with external power supply
An external voltage of up to max. 30 V (typically 24 V) must be connected to terminal DIC.
Figure 2-4 Digital inputs with switch and external power supply at terminal DIC
2.4.2 Digital outputs
Functions
The following functions can be assigned to the digital outputs:
● Energy pulse output, programmable for active energy pulses or reactive energy pulses
● Indication of the direction of rotation
● Operating state display of the device
● Signaling of limit violations
● Switching output for remote control via the interface
The following functions can be assigned to both digital outputs:
● Remote control
The digital output is remotely controlled via the integral communication interface. T
he
Modb
us function codes can be found in chapter Modbus (Page 111).
● Direction of rotation
The digital output is switched on by a counter-clockwise rotating electrical field a
nd
r
emains active while the direction of rotation of the field remains unchanged.
● Energy pulse
The digital output outputs the parameterized number of pulses per energy unit (e.g. kWh).
The specified energy counter is evaluated here.
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