PS 1 – LCD
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14
6.4 - 9 Electric connection of the fault terminals and signal inlets (pic 2 attachment
)
6.4
Fault terminals
Caution!
Terminal 1 / 2 = Relay output for every failure non-isolated.
In case of an alarm there are 230 V/AC adjacent
(this port is protected by a micro-fuse 1 A T).
Terminal 3 / 4 = Overall failure, voltage free, closed in case of
alarm
(Terminals 1 /2 and 3 /4 are active for each failure, even
in case of high-water alarm).
Terminal 5 / 6 = High-water alarm, voltage free output, closed
in case of alarm
6.5
Port for floating switch dry run protection
Terminal 10 /11 = Dry run protection
Polarity of the terminals: 10 = Plus and 11 = Minus
When connecting a floating switch to terminals 10-11 surfacing of the cutting unit/ blade wheel
from the medium can be prevented.
Caution. The Dry run protection is only active in automatic mode.
When used in the Ex-zone, the according regulations need to be obeyed.
If a special program has been agreed upon, it is optional to enable this terminal to lock the unit
6.6
Examples for connections when operating the control unit with floating switches
The display shows which switch is closed. The use of a Normally Open is always mandatory.
“
Floating switch”
needs to be selected in the menu under
“level control”
The port for high water alarm (terminals 16 / 17) always remains active.
If used in the
Ex-zone
according regulations need to be obeyed.
