Wilo Control EC-L, Инструкция по установке и эксплуатации

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Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09 55
13.2 System impedances
NOTICE
Maximum switching frequency per hour
The connected motor determines the maximum switching frequency per
hour. Note the technical data of the connected motor! The maximum
switching frequency of the motor must not be exceeded.
NOTICE
• Depending on the system impedance and the maximum connections/
hour of the connected consumers, voltage fluctuations and/or drops
may occur.
• When using shielded cables, attach the shielding to the earth rail on
one side of the switchgear!
• Always have connection carried out by a qualified electrician!
• Observe the installation and operating instructions for the connected
pumps and signal transmitters.
3~400 V, 2-pole, direct starting
Power in kW System impedance in ohm Connections/h
2.2 0.257 12
2.2 0.212 18
2.2 0.186 24
2.2 0.167 30
3.0 0.204 6
3.0 0.148 12
3.0 0.122 18
3.0 0.107 24
4.0 0.130 6
4.0 0.094 12
4.0 0.077 18
13.3 Overview of the symbols
Standby:
Symbol lights up: The switchgear is switched on
and ready for operation.
Symbol flashing: Follow-up time of pump 1 active Operating mode: “drain”
Value input not possible:
1. Input disabled
2. The accessed menu only displays values. Operating mode: “fill”
Pumps ready for operation/deactivated:
Symbol lights up: Pump is available and ready for
operation.
Symbol flashing: Pump is deactivated. High water level reached
Pumps working/fault:
Symbol lights up: Pump is in operation.
Symbol flashing: Pump fault
Operating mode “drain”: Dry-running level too
low
Operating mode “fill”: Level for low water too low
A pump has been set as the standby pump. There is at least one current (unacknowledged)
error message.
“Extern OFF” input active: All pumps switched off The device communicates using a field bus sys-
tem.