Schaller Automation Visatron VN2020 User Manual

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Operating manual  VISATRON® Oil Mist Detector  VN2020 / VN2020 EX
Part number 183001  Version 3.0
ASSEMBLY AND INSTALLATION
Terminal
No.
Terminal
Connect to
Note/action
1
24 V DC +
Power supply
Voltage report: 18-31, 2V
2
24 V DC -
3
Spare S1
Reserve
4
Spare S2
5
A/H
Remote
indicator
RS485 A/CAN H
6
B/L
RS485 B/CAN L
7
GND
RS485 GND/CAN GND
8
NC1
Alarm system/
safety system
Contacts COM1 and NO1 close in Ready
mode
9
COM1
10
NO1
11
NC2
Alarm system/
safety system
Contacts COM2 and NO2 close in the event of
an oil mist alarm (High Oil Mist Alarm)
12
COM2
13
NO2
14
NC3
Alarm system/
safety system
Contacts COM3 and NO3 close in the event of
an oil mist alarm (High Oil Mist Alarm)
15
COM3
16
NO3
17
NC4
Alarm system/
safety system
Contacts COM4 and NO4 close in the event of
a pre-alarm (Oil mist pre-alarm). Pre-alarm is
triggered from 70% of the high oil mist alarm
threshold.
18
COM4
19
NO4
Terminal assignment diagram, terminal box for VN2020
Electrical connection terminal box (example installation), VN2020
1: “Relay” terminal strip
2: “Power supply 24V” terminal
strip
3: “Remote indicator” terminal
strip

Schaller Automation Visatron VN2020 Specifications

General

Brand	Schaller Automation
Model	Visatron VN2020
Category	Security Sensors
Language	English