NORSTAT Safety Relays - Handbuch (Seite 61)

application guide safety relays from riese electronic page 58
Dual channel emergency stop with external
expansion of contacts (t wo contactors),
contact monitoring and opposite polar ity
between channels with RS-NAGMP.1
This application uses dual external contactors.
Each normally closed contact of these external
contactors must be connected in series to X1 and
X2. The function is similar to application no. 5.
In this application the demand of redundancy of
the contacts of the external contactors is
accomplished. Through the switch S ext. the
external contactors can be operated or turned
off at any time if the RS-NAGMP is activated.
Suitable up to risk category:
- Safety outputs of RS-NAGMP.1 : 4; SIL3; PLe
reachable
- Contacts of K1ext./K2ext.: 3; SIL2; PLd reachable
(with separate sheathed cable)
Dual channel protection door monitoring with
RS-NAGMP.1 (manual and automatic start)
With the dual channel protection door monitoring
terminals T21 und PE as well as X1 und X2 have
to be bridged. If using the automatic start, you
have to bridge the terminals T33 and T34.
With automatic start the contacts closes with a
delay of approximately 100ms.
In this application a fault in the protection door
monitoring switch will be detected
Suitable up to category 3; SIL2; PLd reachable
Dual channel protection door monitoring with
opposit polarity between channels with RS-
NAGMP.1 (manual and automatic start)
In this application terminals T11 and T21 as well
as X1 and X2 have to be bridged. If using the
automatic start, you have to bridge the terminals
T33 and T34.
With automatic start the contacts closes with a
delay of approximately 100ms.
The function is similar to application no 14.
Suitable up to category 4; SIL3; PLe reachable
T23
S
ta
rt
T12 T11 T33
S2
X2 T34 X1 T12 T22 T21
S1
T23
S
ta
rt
T12 T11 T33
S1 S2
X2 T34 X1 T21 T12 T22
S1
T22 X1
S
TA
R
T
T33 T11 T34
K1ext
Not-
Halt/
E-Stop
T21 X2 T12
13 13
T12 T23
ext K
.. ext Uext U
K2ext
ext K
14
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866 Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com