Operation Manual VISATRON® VN115/87plus EX
06/2016
Page 22
SCHALLER AUTOMATION
D-66440 Blieskastel / Saarland / Germany / Industriering 14 / P.O Box 1280
Industrielle Automationstechnik GmbH & Co. KG
Tel. +49(0)6842-508
-
0
/ Fax -260 / eMail: [email protected] / www.schaller.de
2.2
Electrical installation
2.2.1
VISATRON® VN115/87plus EX device
The electrical terminal is inside the socket housing (see
) on the base
plate of the VISATRON® device. The pin assignment is specified in
. The
cable entry points are located on either side.
Figure 16:
Socket housing
According to the pin assignment of
connect the VISATRON® device to
the 24 Volts power supply. The supply voltage can be potential free or not. The
earth connection between the OMD and the engine is carried out by the fixings
screw of the base plate or protection cover.
Additionally connect one alarm relay output to the safety system of the engine. As
specified by the classification societies the 'Alarm' relay must be connected either to
the shutdown or to the slow-down input.
During normal operation the alarm relay is switched off. In case of an oil mist alarm
the relay is switched on. To monitor this output, a wire break resistor is installed
(between pin 7 and 8 and between 15 and 16 as shown in
To replace the wire break resistors the measuring head has to be dismounted. The
) are located on the rear side under the plastic cover (see
). The plastic cover can be removed via the screws. Do not forget to write
the resistor value on the plastic cover with a permanent marker.
Also placed on the rear side two jumpers are available to select the interface mode:
RS485 bus or 4- 20mA output of the relative opacity at pin 11 and 13.
Fixing screws
of terminal
board
Cable entry
Cable entry
