Wilo Wilo-Control EC-L, Installation And Operating Instructions Manual

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en Installation
72 WILO SE 2018-12
24 V
Fig. 23: Overview of connection symbol
An external alarm signal (horn, flashing light, etc.) can be connected. The output is
switched in parallel to the collective fault signal (SSM). Connection load: 24 V DC, max.
4 VA
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Connect the wires to the terminal strip according to the connection
diagram.
For details on the terminal number, see the overview of connections in the
cover.
NOTICE! Observe the correct polarity of the alarm signal!
6.5.17 Installing the rechargeable bat-
tery
NOTICE
Mains-independent alarm
The alarm sounds as soon as the rechargeable battery is inserted. The alarm can only
be switched off by removing the rechargeable battery again or by connecting the
power supply.
By inserting a rechargeable battery, alarm signals will be emitted independent of the
electricity network upon power failure. An audible, constant tone will be emitted as an
alarm. Observe the following points for the use of a rechargeable battery:
▪ Rechargeable battery type: 9 V rectangular, Ni-MH
▪ To ensure trouble-free 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 the ambient temperature drops. This
reduces the running time of the rechargeable battery.
‡
Power supply is connected.
‡
Main switch in the “OFF” position!
1. Place the rechargeable battery in the holder. See Overview of components, item 12
[ } 63].
WARNING! Do not insert any batteries! There is a risk of explosion!
CAUTION! Observe the correct polarity!
2. Plug in the connection cable.
⇒ Alarm sounds!
3. Turn the main switch to the “ON” position.
⇒ Alarm off!
▶ Rechargeable battery installed.
6.5.18 Connection ModBus RTU
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
The ModBus protocol is available for connection to a building management system. Ob-
serve the following points:
▪ Interface: RS485
▪ Field bus protocol settings: Menu 2.01 to 2.05.
▪ Terminate switchgear: Plug in jumper J2.
▪ If the ModBus requires a polarisation, plug in jumpers “J3” and “J4”.
Item numbers, see Overview of components [ } 63]
9
ModBus: RS485 interface
11
ModBus: Jumper for termination/polarisation