© DICTATOR Technik GmbH • Gutenbergstr. 9 • 86356 Neusäß • Germany
Tel. +49(0)821-24673-0 • Fax +49(0)821-24673-90 • E-mail [email protected] • 20220325
Page 07.021.13
Technical Manual
RZ-24 Central
7
Ill. 6a
Zener barrier
Z779**
Central
unit
RZ-24
Up to 12 electromagnets
EM GD 50 EX or EM GD 70 EX
Max. 20 intrinsically safe
RM 3000IS EX smoke detectors or
WM 3000IS EX heat detectors
Resistor 3.9 kΩ in
the last detector
of the line
Ex-proof hand
release
switch
700232
Gas detector*
Safe area
Hazardous area zones 1 - 2
If necessary,
2 ex-proof
CLOSE switches
Fuse*
Screening, optional
(operational earth)
* Each ex-magnet has to be individually fused, with the fuse installed upstream of the magnet.
You can find more information in the manual of the magnets.
On site, the integration of a gas warning system must be checked by the ATEX representative
on the basis of explosion protection guidelines.
** Please refer to the Zener barrier manual for the detailed connection diagram.
230 VAC
supply of the door
operator controller
AR* = cutoff relay
for door operator
5d) Wiring Diagram
RZ-24 in an Ex-Proof
Hold-Open System
With Door Operator
for Opening
The following wiring examples apply when the components of points 3b
and 6 are used. If for example other fire detectors (e.g. for installation
outside the hazardous area) are used, please contact us.
A hand release switch mounted outside the hazardous area, has to
be connected so that the Zener barrier is placed between it and the
hazardous area.
IMPORTANT
: In case of an alarm the RZ-24 will completely electrically
isolate the control system of the door operator!
Electrical Connection and Installation of an Ex-Proof
Hold-Open System with RZ-24
- cont.
