Honeywell SYA14 Series Manual page 635

FF-SR05936 Series
APPLICATION WARNINGS
IMPROPER TIME DELAY USE
•
Always use stand still monitor module connected to non safety related machine operation and use safety control modules
as e-stop, door, two-hand control to immediately stop dangerous motion.
CONTACT WELDING
•
Always protect all safety contacts with correctly rated fuses. These fuses must never exceed the rated FF-SR05936
safety output capability to prevent contact welding.
IMPROPER EXTERNAL SAFETY RELAY MONITORING
•
When using additional safety relays, always connect one normally closed contact of each relay in series inside the Final
Switching Device (FSD) monitoring loop circuit. This connection will ensure correct operation of the external relays after
each FF-SR05936 activation.
IMPROPER ARC SUPPRESSOR INSTALLATION
•
Never install an arc suppressor across the safety output contact of the safety control module.
•
Always install arc suppressors across the coils of external safety relays.
Failure to comply with these instructions could result in death or serious injury.
(refer to application example)
DOOR PROTECTION
Start Sequence
Initially, the motor is not operating and the door is open. To
initiate the start sequence, close the door. This action will
close the two normally closed contacts of the key operated
interlock switch. It will also automatically restart the
emergency stop modules. As the Unlock push button is
open, the solenoid coil of the key operated interlock switch
is de-energized and the door is locked. The motor may now
be started.
To start the motor, press the On push button. This action
will energize the self maintained external safety relay K4 and
will start the motor.
PK 1070-01-EN FR26 GLO 398 Printed in Germany
PK 107010-01
ISSUE 1
Stop Sequence
Initially, the motor is operating and the door is closed and
locked. To initiate the stop sequence, press the Off push
button. This action will de-energize the external safety relay
K4 and immediately stop the motor.
To unlock the door when the motor has reached zero
motion, press the Unlock push button. This action will
energize the coil of the solenoid of the key operated
interlock switch and unlock the door. The door may now be
opened safely. No hazardous motor motion is present.
Emergency-stop Sequence
In case of an emergency stop situation, the two channel
inputs of the FF-SRS5935 emergency stop control module
will open. This action de-energizes the external safety relay
K4, stopping the motor. All other steps remain the same as
described above (Stop Sequence).
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