Electrical Connection - Wilo Control EC-L Einbau- Und Betriebsanleitung

6.4.5 Water shortage (for "fill" operat-
ing mode only)
6.4.6 High water alarm
6.5

Electrical connection

Installation and operating instructions Wilo-Control EC-L
All manuals and user guides at all-guides.com
Installation
▪ Install the signal transmitter in the supplying tank (e.g. well).
Level measurement can be performed using the level sensor, the dynamic pressure bell
or a separate float switch. If a level sensor or dynamic pressure bell is used, then adjust
the switching point via the menu. A forced switch-on of all pumps always takes place
in the event of an alarm, irrespective of the selected signal transmitter!
Level measurement can be performed using the level sensor, the dynamic pressure bell
or a separate float switch. If a level sensor or dynamic pressure bell is used, then adjust
the switching point via the menu.
Behaviour in the event of an alarm
▪ Operating mode "drain": A forced switch-on of all pumps always takes place in the
event of an alarm, irrespective of the selected signal transmitter!
▪ Operating mode "fill": A forced switch-off of all pumps always takes place in the
event of an alarm, irrespective of the selected signal transmitter!
The pumps must be activated for the forced switch-on:
▪ Menu 3.01: Pumps are enabled.
▪ Extern OFF: Function is inactive.
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work can lead to death due to electric
shock! Electrical work must be carried out by a qualified electrician in accordance
with the locally applicable regulations.
DANGER
Risk of explosion due to incorrect connection!
If pumps and signal transmitters are connected in explosive atmospheres, there is a
risk of explosion due to incorrect connection. Observe the section on explosive at-
mospheres in the appendix!
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, the shielding must be attached to the earth rail on
both sides of the switchgear!
• Connection must always be carried out by a qualified electrician!
• Observe the installation and operating instructions for the connected pumps and
signal transmitters.
▪ The mains connection current and voltage must be as stated on the rating plate.
▪ Execute fuse protection on the mains side in accordance with the local guidelines.
▪ If circuit breakers are used, the switching characteristics should be selected according
to the connected pump.
▪ Install a residual-current device (RCD, type A, sinusoidal current).
▪ Route connection cable in accordance with the local guidelines.
▪ Do not damage the connection cable during installation.
▪ Earth the switchgear and all electrical consumers.
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