Honeywell SYA14 Series Manual page 678

APPLICATION EXAMPLES
FIG 9. ONE-CHANNEL EMERGENCY STOP CONNECTION
L1 (+)
Emergency Stop
N (-)
(A) 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).
(B) Manual start mode: Insert start push-button; the jumper between Y1/Y2 is omitted;
Automatic start mode: Insert shunt between Y1/Y2
FUNCTIONAL DESCRIPTION
After activation of the Emergency-stop push button, the K1/K2 will turn OFF, indicating that the two internal safety
relays K1 and K2 are de-energized. The normally open safety outputs 13/14 and 23/24 will open. There exist two
different start modes:
Manual start mode:
The jumper between S33/S4 is omitted (see (B) ).
1. After removing the stop condition, press the START push button to start the safety control module.
2. The K1/K2 LED will turn ON indicating that the safety relays K1 and K2 are energized. The two normally open
safety contacts will close allowing the machine to operate.
Automatic start mode:
Set the connection between S33/S34 (see (B) ).
1. After removing the stop condition, the safety control module will immediately reset.
2. The K1/K2 LED will turn ON indicating that the safety relays K1 and K2 are energized. The two normally open
safety contacts will close allowing the machine to operate.
FIG 10. ONE-CHANNEL EMERGENCY STOP CONNECTION (WITH EXTERNAL CONTACTORS
L1 (+)
Emergency Stop
N (-)
Contact reinforcement through external relays:
For currents higher than 5A, the output contacts can be reinforced by external safety relays. The proper operation of
the external contactors is monitored by looping the NC contacts into the Final Switching Device (FSD) loop between
terminals Y1/Y2.
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 and 23/24 will open and de-
energize the external contactors K3 and K4.
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 two normally open safety contacts will close and energize the external contactors K3 and K4.
6
Fuse
Start push-button
A1(+) S33
SRS 5934
A2(-)
Fuse
Start
A1(+) S33
SRS 5934
A2(-)
S34 Y1 Y2 13 23
14 24
Machine Control
K3 K4
S34 Y1 Y2 13
14
K3
107016-11 EN FR26 GLO 1199 Printed in Germany
23
24
K4