Operation And Function; Controls - Wilo Control MS-L 1x4kW Notice De Montage Et De Mise En Service

OPERATION AND FUNCTION

NOTE
• No external voltage may be applied!
• We recommend high-water protection always
be provided as additional fuse protection for the
unit.
5.4.8. Collective fault signal connection
A potential-free contact is available via the corre-
sponding terminals for external signals (e.g. horn,
flash light or alarm unit).
• Contact: Changeover contact
• Terminals: 7, 8, 9
• Min. switching capacity: 12 VDC, 10 mA
• Max. switching capacity: 250 VAC, 1 A
• In case of an alarm, a drop in voltage and when
the main switch is switched off, the contact be-
tween terminals 8 and 9 is closed.
Insert the cable ends of the cable laid on-site
through the threaded cable connections and
secure accordingly.
Connect the wires according to the required func-
tion at terminals 7, 8 and 9 of the terminal strip.
DANGER due to electrical voltage!
An external voltage is applied at the terminals
for this function. This is also present at the
terminals when the main switch is switched
off! There is a risk of fatal injury! The power
supply must be disconnected from its source
before all work!
5.4.9. Switching the buzzer on/off
When the buzzer is switched on, audible warnings
are also emitted in addition to the visual indicator.
The internal buzzer can be switched on and off
using DIP switch 7:
• "ON" position: Buzzer on
• "OFF" position: Buzzer off (factory setting)
NOTE
If the battery for alarms that are independent
of the mains is installed, the buzzer cannot be
switched off using the DIP switch during a pow-
er failure, when the main switch is switched off
or the mains plug is disconnected. To deactivate
the buzzer, the battery must always be removed
in such cases!
5.4.10. Switching pump kick on/off
To prevent long shutdowns for the connected
pumps, a periodic test run can be performed
(pump kick function). A 2 s test run takes place
after if the connected pump has been shut down
for 24 h.
The function can be switched on and off using
DIP switch 6:
• "ON" position: Pump kick on
• "OFF" position: Pump kick off (factory setting)
5.4.11. Adjusting the follow-up time
Follow-up time is the time between the float
switch "OFF" signal and the pump being deacti-
vated by the switchgear.
Installation and operating instructions Wilo-Control MS-L 1x4kW
The follow-up time is continuously adjusted via
the potentiometer. Setting range:
• Standard version: 0...120 s
• Version S: 0...30 s
• "O" version: 0...120 s
5.4.12. Installing the rechargeable battery
By inserting a rechargeable battery, alarm signals
will be emitted independent of the electricity
network on power failure. An audible, constant
tone will be emitted as an alarm.
1. Place the rechargeable battery in the holder. Pay
attention to the correct polarity.
2. Secure the rechargeable battery using the en-
closed cable tie
NOTE
• To ensure perfect operation, the rechargeable
battery must have been fully charged prior to
insertion or have been charged for 24 h in the
switchgear.
• The capacity of the rechargeable battery will fall
if temperatures drop. This reduces the running
time of the rechargeable battery.
6. Operation and function
This section contains all information on operating
the switchgear and how it functions.
POTENTIALLY fatal danger due to electrical
voltage!
There is a risk of fatal electric shocks oc-
curring when performing work on the open
switchgear. All work on individual com-
ponents must be performed by a qualified
electrician.
NOTE
Following a power supply interruption, the
switchgear will automatically start up in the last
operating mode set!

6.1. Controls

The switchgear is operated on the side control
panel via 4 buttons. The current operating state is
indicated via 4 LEDs on the front side.
6.1.1. Main switch (standard version only)
Disconnection from the mains is via a main switch
on the standard version.
Position "0" = switchgear OFF
Position "1" = switchgear ON
NOTE
The main switch can be secured against unau-
thorised activation/deactivation using a lock!
English
33