Honeywell SYA14 Series, Manual

Page: 710 / 737

FF-SRT Series
ISSUE 1
PK107019-01
PK107019-01-EN FR26 GLO 398 Printed in Germany
5
DOOR PROTECTION USING GKL/GKR KEY OPERATED
SOLENOID INTERLOCK SWITCH (MECHANICAL LATCH)
AND FF-SRT TIME DELAY MODULE
(refer to application
example)
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 (SW2 - 21/SW2 -
22, SW2 - 13/SW2 - 14) of the key portion of the key
operated interlock switch.
To lock the door, press the Lock Door push button. This
action will energize the external safety relays K1 and K2 and
lock the door.
To reset the emergency stop module and verify that K1, K2,
K4, K5 and K6 are operating correctly, press the Start push
button. This action will cause the normally open safety
outputs (13/14, 23/24, 33/34) of the FF-SRS5935 safety
module to close. The motor may now be started.
To start the motor, press the On Motor push button. This
action will energize the self maintained safety relays K4 and
K5 and allow the motor to start.
Stop Sequence
Initially, the motor is operating and the door is closed and
locked. To initiate the stop sequence, press the Off Motor
push button. This action will de-energize the external safety
relays K4 and K5 and immediately stop the motor. The
external safety relays K1 and K2 will also de-energize and
allow the FF-SRT time delay module (de-energize) to initiate
the selected elapsed time sequence. At the end of this
elapsed time, the normally closed contact 15/16 will close.
This action will allow the door to be unlocked.
To unlock the door, press the Unlock Door push button.
This action will verify that the external safety relays K1 and
K2 are operating correctly and then energize the external
safety relay K6. The solenoid coil of the key operated
interlock switch will now activate and unlock the door. At
the same time this action will open the two channel inputs
of the FF-SRS5935 emergency stop control module. The
door can 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-energize the external safety relays
K4 and K5, stopping the motor. To unlock the door, it will
be necessary to press the Off Motor push button even if the
motor is completely stopped. All other steps remain the
same as described above (Stop Sequence).