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Verfügbare Sprachen
Verfügbare Sprachen
Central unit:
1
AC mains input cable.
2
Relay cable – fit additional cable entry.
3
Relay cable.
4
Relay cable – fit additional cable entry.
5
System bus cable.
6
DC emergency power supply cable or remote acknowledgment cable – fit additional
cable entry.
Wireing diagram
Connection
1
Power (terminal contacts) 230 V, 50 to 60 Hz, max. 300 mA, max. 55 VA
Pin assignment: L (Outer conductor, VarioGard power feeder), LSi (Phase conduc-
tor output, with 4 A slow-blow fuse), N (Neutral conductor)
2 Terminal board (terminal contacts)
Connection for mains PE and terminals for supplementary installation .
Danger to life - high voltage!
The VarioGard central unit may only be installed by duly trained specialist personnel.
3 Relays (terminal contacts)
The relays are designed as normally closed relays with a potential-free switching
contact. Potential-free contact – 250 V, 5 A, cos (ϕ) = 1
Pin assignment K1 to K5:
Switching contacts shown in idle state
Recommended use:
Relay 1 set for A1 e.g. for 1st fan stage
Relay 2 set for A2 e.g. for 2nd fan stage
Relay 3 set for A3 e.g. for warning panel
Relay 4 set for A4 e.g. for acoustic warning
Relay 5 set for fault
4
System bus (terminal contacts)
30 V nominal DC output, max. 1.2 A current-load as a slave supply voltage.
Pin assignment:, + (30 V nominal supply), D (Data cable), GND (ground)
It is necessary for installation to put over the system bus cable the enclosed ferrite
sleeve (1) (Order No. 18 92 365).
5 Acknowledgment (terminal contacts)
A key can be connected to the input for acknowledgment.
Pin assignment: Q (Switching contact), GND (ground)
Installation layout for remote acknowledgment at central unit:
6 Emergency power supply (terminal contacts)
28 V nominal DC, constant-voltage input
Pin assignment: + (voltage input), K (battery voltage monitor), GND (ground)
90 33 231 - MA 4679.200 en
© Dräger Safety AG & Co. KGaA
Edition 01 - August 2010
Subject to alteration
WARNING
NOTE
Dräger Safety AG & Co. KGaA – Revalstraße 1, D-23560 Lübeck, Germany
1 2 3 4 5 6
1
L
2
K1
K2
Central unit
10 KW
Q
5 V
GND
Tel. +49 451 8 82 - 27 94 – Fax +49 451 8 82 - 49 91
N
PE
1
2
3
K3
K4
K5
4 5 6
4 5 6
1
Key
www.draeger.com
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