107015-10 EN FR26 GLO 1198 Printed in Germany
7
APPLICATION EXAMPLES (CONTINUED)
FIG 11. SINGLE-CHANNEL EMERGENCY STOP CONNECTION
(WITH EXTERNAL CONTACTORS)
Start
Honeywell
FF-SRS 5924
Emergency
stop
S33
S34
(A)
Machine
Control
K3
K4
Fuses
L2 L3
L1
(B)
(C)
24Vdc (+)
(-)
Fuse
Fuses
CONTACT MULTIPLICATION THROUGH EXTERNAL CONTACTORS:
With switching output currents higher than 4A, the output contacts should be reinforced by external contactors (K3
and K4). (see
note (C) and Warning)
1. After activation of the Emergency-stop push button, the K1/K2 LED will turn OFF, indicating that the two internal
safety relays K1 and K2 are de-energized. The normally open safety outputs 13/14...33/34 will open and de-
energize the external contactors K3 and K4.
2. After removing the stop condition, press and release the START push button to start the safety control module. If
the two contactors K3 and K4 are working properly, the K1/K2 LED will turn ON indicating that the safety relays
K1 and K2 are energized. The three normally open safety contacts will close and energize the external contactors
K3 and K4.
APPLICATION NOTES
Note (A): SINGLE CHANNEL SAFETY DEVICES:
This may be an emergency stop push button with a single output safety device in series such as safety limit or
interlock switches (for example: CLS, GK and GSS).
Note (B): START MODES:
Manual start mode: Insert start push-button; the jumper in the restart loop S33/S34 is omitted;
Automatic start mode: Insert jumper
in the restart loop S33/S34
Note (C): EXTERNAL RELAYS/CONTACTORS:
If contact multiplication via external safety relays/contactors with positive-guided contacts is necessary, the proper
operation of the external relays/contactors must be monitored by looping the normally closed contacts into the Start
loop between terminals S33/S34 (Final Switching Device (FSD) monitoring).
CONTACT MULTIPLICATION VIA EXTERNAL CONTACTORS/RELAYS
•
If contact multiplication via external safety relays (or the FF-SRE3081 Extension module) is necessary,
connect one normally closed contact of each relay in series (or the 81/82) into the Start 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.
Содержание SYA14 Series
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