Wilo -Control SC-Fire Electric A2P Installation And Operating Instructions Manual page 44

7.2.1 Power supply connection
The 4-wire cable (L1, L2, L3, PE) provided by the customer for the power supply network must be connected to
the main switch in accordance with the wiring diagram.
7.2.2 Connection of the malfunction/operating messages
On the terminal strip on the lower part of the switchbox, potential-free contacts are available to allow a
possible malfunction/operating information message (see diagram).
Potential-free contacts, contact load max. 250 V ~/1 A
"ALARM LACKS VOLTAGE"
Activation of the output upon onset of one of the following malfunctions:
• Loss of connection voltage
• Malfunction of phase sequence
• Main on/off switch open
• Activation failed
• System malfunction
"MALFUNCTION"
Activation of the output upon onset of one of the following malfunctions:
• Overload
• Pump protection fuse holder open
• Pump protection fuse holder activated
• Pressure too low during pump operation (malfunction pump in demand)
"NON-AUTO MODE 1"
The output is activated if the corresponding key switch 1 is in the "0" or "Manual" position. In the non-automatic
mode, no automatic start-up of the pump is possible via the intermediary of the float switch or the corresponding
pressure switch.
"NON-AUTO MODE 2"
The output is activated if the corresponding key switch 2 is in the "0" or "Manual" position. In the non-automatic
mode, no automatic start-up of the pump is possible via the intermediary of the float switch or the corresponding
pressure switch.
"ON"
The output is activated if the pump starts and the pump current falls within the tolerance limits set (see
menu 5.4.3.0).
"START-UP TANK LEVEL MALFUNCTION"
The output is activated when the level of the pump start-up tank is below 2/3 and when the float switch is
triggered.
"TANK EMPTY"
If the level of the water tank is too low, the output is activated.
WILO SE 01/2017
English
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