English
WILO SE 11/2016
10
•
Base printed circuit board: printed circuit board with micro-controller. (Fig. 1, pos. 18)
•
Printed circuit board of the converter: conversion of the voltage from 12 V DC to 24 V DC, conversion
of the speed rotation signal (Fig. 1, pos. 19)
•
Fuse protection of components: fuse protection of the control and connected components
(Fig. 1, pos. 17)
•
Contactors/relay: contactors/relay to activate the starter and the electromagnets (Fig. 1, pos. 20)
•
Chargers: To automatically charge and keep the diesel batteries charged (Fig. 1, pos. 16)
•
Emergency start button: start-up of the diesel motor with battery 1 or 2, carried out independent of the
control (Fig. 1, pos. 12, 13)
•
Diesel indicators (Fig. 1, pos. 14): display showing the fuel level, temperature of the cooling water, oil
pressure and speed of the diesel motor
•
Key box: enables the storage of the keys from the key switches (Fig. 1, pos. 15)
•
Printed circuit board “SC Display”: printed circuit board with display and rotary knob (Fig. 1, pos. 21)
•
Printed circuit board “SC I/O”: printed circuit board with control/operating console (Fig. 1, pos. 22)
6.2 Function and operation
DANGER! Risk of fatal injury!
When working on an open switchgear, there is a risk of electrocution in the event of contact
with the conductor components.
Only authorised and qualified personnel may carry out the work!
Following connection of the switchgear to the connection voltage as well as after each network cut-
off, the switchgear reverts to the operating mode set before the voltage cut-off.
6.2.1 Operating modes of the switchgear
Activation/deactivation of the switchgear
Once the batteries are connected to the switchgear and the voltage supply has been established, the control is
operational after a few seconds. The green LED indicating the operational readiness (Fig. 2, pos. 1) is turned
on.
By default, the remaining time before changeover to the other battery and charger is indicated on the LCD.
The chargers and the heating which maintain the temperature of the motor oil constant can be switched on or
off via the main switch.
To stop the operation, the terminals of connected batteries and the main switch must be disconnected.
