The remote operator allows the PKZ2 to be switched on
and off remotely during operation. After tripping, it can be reset to 0
by the remote operator.
The PKZ2 system has two remote operators:
- In the RE-PKZ2 – the electronic remote operator for standard
applications – both CONTROL and LINE are separate inputs, but with
the same reference potential. This allows actuation using low
current units, e.g. control circuit devices.
- The electronic remote operator RS-PKZ2 can be actuated directly,
without any coupling elements, from the semiconductor outputs of a
PLC (24 V DC).
Electrical isolation between the CONTROL and LINE allows it to take
power for the switching process from a separate power supply (e.g.
230 V 50 Hz).
Both remote operators must be supplied with the mains supply of 700
W/VA for 30 ms at the terminals 72–74 during the switching operation
(On/Off/Reset). Twelve voltage versions are available per remote
operator. These cover a wide application range. The remote operators can
optionally be set for manual or automatic operation.
- Manual position: remote switching on is reliably electrically
interlocked.
- Automatic position: remote switching on is possible.
An integrated normally open contact (33–34) when closed indicates
the automatic position of the remote operator.
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