PCL
Pleiger Elektronik GmbH & Co. KG
www.pleigerelektronik.de
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Pleiger Control Loop
Manual version 2018-03
5.4.1 Connector for bus cable
predecessor Pin
Meaning
successor
5 + 6
1 + 2
Power bus L1, A side
7 + 8
3 + 4
Power bus L2, A side
5 + 6
Power bus L2, B side
1 + 2
7 + 8
Power bus L1, B side
3 + 4
11
9
Data bus -, A side
12
10
Data bus +, A side
11
Data bus -, B side
9
12
Data bus +, B side
10
Table 5-2: PCL-Bus connection table PCL-VCI-card
NOTICE
Phase direction of power supply
Please note that each node will turn the phase of the power bus by 180°.
See chapter 7
“PCL-Power Control (PCL-PC)” for details (including wiring diagrams).
5.4.2 EHS connector
Pin
I/O
Meaning
1
in
Feedback open, make contact to 0V
2
in
Feedback closed, make contact to 0V
3
in
Analogue position feedback, +4..20mA
4
out Supply sensor, 24V
5
out Supply sensor, 0V
6
out Power bus L1
7
out Function close L2
8
out Power bus L1
9
out Function open L2
10
in
External magnetic valve supply (quick close)
11
in
External magnetic valve supply (quick close)
Table 5-3: PCL-VCI-card EHS connector
5.5 PCL-VCI with extended inputs and outputs (V3-3 and V3-4 (vertical
connectors))
The extended version of the VCI provides some extra features. Most important are the additional in-
puts and outputs that may be used for different purposes. The power supply is based on a primary
switched power supply that is smaller, less heavy, more powerful and more efficient. This supply pro-
vides
enough power to feed two more 0…20mA inputs and two additional outputs, each providing
30mA at 24VDC.
Because of the slightly reduced size und variable mounting of the terminals the VCI may be adapted
to other casings more easily. Anyhow the mounting of the VCI stays the same.
The inputs can be configured as analog or digital inputs. They are primarily intended to read up to two
sensors like tank content or pump pressure level switches when configured as digital inputs. The digi-
tal outputs may be used for pump control etc. The analog inputs are suitable for passive two wire sen-
sors and the digital inputs require dry contacts. The digital outputs are of PNP type (recovery diode
protected). The required 24VDC supply voltage is also provided by the VCI card.
