System Impedances; Overview Of The Symbols - Wilo Control EC-L1 Series Installation And Operating Instructions Manual

13.2

System impedances

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
Value input not possible:
1. Input disabled
2. The accessed menu only displays values.
Pumps ready for operation/deactivated:
Symbol lights up: Pump is available and ready for
operation.
Symbol flashing: Pump is deactivated.
Pumps working/fault:
Symbol lights up: Pump is in operation.
Symbol flashing: Pump fault
A pump has been set as the standby pump.
"Extern OFF" input active: All pumps switched off
Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09
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
2.2
2.2
2.2
2.2
3.0
3.0
3.0
3.0
4.0
4.0
4.0
System impedance in ohm
0.257
0.212
0.186
0.167
0.204
0.148
0.122
0.107
0.130
0.094
0.077
Operating mode: "drain"
Operating mode: "fill"
High water level reached
Operating mode "drain": Dry-running level too
low
Operating mode "fill": Level for low water too low
There is at least one current (unacknowledged)
error message.
The device communicates using a field bus sys-
tem.
en
Connections/h
12
18
24
30
6
12
18
24
6
12
18
55