4
107015-10 EN FR26 GLO 1198 Printed in Germany
ELECTRICAL INSTALLATION (continued)
Multiple wiring configurations are possible for the
FF-SRS5924 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 5)
and the application examples (pages 6 through 7).
FUNCTIONAL DESCRIPTION
In an automatic start configuration, the module
accepts immediate input from the safety device
(emergency stop push button or safety switch) at A1
(see application example). If S33/S34 are jumpered,
the normally open safety contacts (13/14 ... 33/34)
will close and the normally closed contact (41/42) will
open.
In a manual start configuration (start push button
is inserted between S33/S34), the module accepts
input from the safety device (emergency stop push
button or safety switch) at A1 after activation of the
start push button (see application example).
In either mode, if the safety device is actuated
(emergency stop condition occurs), the normally
open contact will open immediately and the normally
closed contacts 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 control
modules or external contactors with positively driven
contacts can be used to multiply the number of
contacts of the FF-SRS5924 Emergency stop control
module. If multiple safety contacts are used in
parallel with one load, the maximum admissible
current can be increased.
CONTACT MULTIPLICATION VIA EXTERNAL
RELAYS/CONTACTORS
•
If contact multiplication via external safety
relays/contactors (or the FF-SRE3081 Extension
module) is necessary, connect one normally
closed contact of each relay in series (or 81/82)
into the restart loop between terminals S33/S34
(Final Switching Device (FSD) monitoring).
•
Use two independent safety relays/contactors
with mechanically linked contacts to reliably
detect a welded contact.
Failure to comply with these instructions could
result in death or serious injury.
LED INDICATORS
The FF-SRS5924 module has two green LED status
indicators (Power, K1/K2) as illustrated below.
The Power LED indicates power is applied to the safety
control module. Illuminated K1/K2 LED’s indicate that
the internal safety relays are energized. Both K1 and
K2 relays must be energized to have the normally open
contacts 13/14...33/34 in a closed condition. If one of
the safety relays de-energizes, the normally closed
contact will close.
FIG 7. FUNCTIONAL DIAGRAM
released
activated
released
activated
Input
Output
K1
K2
Emergency
stop
Start push-
button
FIG8. BLOCK DIAGRAM
S33
S34
Power
FIG 9. MODULE FRONT PANEL
S
33
S
34
S33
S34
Содержание SYA14 Series
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