Honeywell SYA14 Series, Manual

Page: 685 / 737

107017-11 EN FR26 GLO 0999 Printed in Germany 5
ELECTRICAL INSTALLATION
Multiple wiring configurations are possible for the
FF-SRS5935 dual channel emergency stop module.
General guidelines are provided because there are
various ways to interface the module to machine
control circuitry. Refer to the important warnings
(page 6) and the application examples (pages 7
through 8).
SAFETY CONTROL MODULE DAMAGE
Do not supply any current/voltage to the FF-
SRS5935 safety module control inputs. These
inputs receive their voltage (24 vdc under a 35-50
mA current) from external power via pins A1 and A2.
Failure to comply with these instructions will
result in product damage.
FIG 9. BLOCK DIAGRAM
FSRS7
FUNCTIONAL DESCRIPTION
In the manual start mode, the module accepts input
from the safety device (light curtain, safety mat,
safety switches, etc.) between S11/S12 and
S21/S22 after activation of the push button between
S33 and S34; then, the normally open safety
contacts (13/14, 23/24, 33/34) will close and the
normally closed contact (41/42) will open.
In the automatic start mode, the module accepts
immediate input from the safety device (light curtain,
mat, safety switches, etc.) between S11/S12 and
S21/S22 (S33 and S34 are jumpered if external
relay monitoring is not needed); then, the normally
open safety contacts (13/14, 23/24, 33/34) will close
and the normally closed contact (41/42) will open.
In either mode, if the safety device is actuated
(emergency stop condition occurs), the normally
open contact will open immediately and the normally
closed contact will close. This emergency stop
condition is relayed via the safety contacts of the
module to the machine control circuitry to arrest
dangerous motion and/or remove power.
EXTENSION MODULES AND EXTERNAL
CONTACTORS
One or more FF-SRE3081 Extension modules or
external contactors with positively driven contacts
can be used to multiply the number of contacts of the
FF-SRS5935 Emergency Stop Module. If multiple
safety contacts are used in parallel with one load,
the maximum admissible current can be increased.
For connection of the FF-SRE 3081 to the FF-SRS
5935 module, see the Installation Instructions for the
FF-SRE 3081 Extension Module.
LED INDICATORS
The FF-SRS5935 module has three green LED status
indicators (Power, K2 and K3) as illustrated below.
The Power LED indicates power is applied to the safety
control module. Illuminated K2 and/or K3 LED’s
indicate(s) that the corresponding internal safety relay is
energized. Both K2 and K3 relays must be energized
to have the normally open contacts 13/14, 23/24 and
33/34 in a closed condition. If one of the safety relays
de-energizes, the normally closed contact will close
(see Mode Setting, page 4, for additional information).
FIG 10. MODULE FRONT PANEL
A2
(-)
A1
(+) S
11
S
12
S
22
S21
PE
S
33
S
34
13 23 33 41
Honeywell
FF-SRS5935
14 24 34 42
Power
K2
K3
13 23 33 41
14 24 34 42
K2
K3
FSRS8
FIG 11. FUNCTIONAL DIAGRAM
Start
closed
opened
Inputs
Output
* Line fault detection et the START push button
FS
R
S
9
If the start push button is closed before voltage is
applied to S12 and S22 (also, if a line fault occurs via
the start push button), the output contacts cannot be
switched to START.