144
ML-5120A
3. Connector Functions
Emergency Stop for Complicated Systems
Interfacing with External Emergency Stop Circuitry
User Supplied Safety Relay Module(s) Required
Complicated Systems are those in which more than one emergency stop sub-circuit
must be linked together. An example of this would be a machine that has a Laser,
parts handler with pneumatic controls, PLC, and conveyor belt all of which have ES-
TOP buttons where one ESTOP button stops all devices. Any situation in which more
than one device must be connected together and respond identically to an emergen-
cy stop event is considered a complicated system.
Complicated systems are integrated using certied safety controllers or safety relays.
In this situation one device is the “master” and the rest of the devices are the “slaves”.
The Laser is considered a slave device in this conguration and its emergency stop
must be controlled by the larger machine’s safety controller. The output of the exter-
nal safety relay module closes the input to the Laser safety unit and allows the sys-
tem to clear the emergency stop state.
E-STOP Connector
ESTOP
ESTOP
ESTOP CH2 rtn
ESTOP CH 2
ESTOP CH 1
ESTOP Out 1a
ESTOP Out 1b
ESTOP Out 2a
ESTOP Out 2b
Inside the laser
User ESTOP Wiring
19
14
18
1
16
6
3
5
8
9
21
22
12
25
11
ESTOP CH1 rtn
Interlock rtn 2
Interlock out 2
Interlock rtn 1
Interlock out 1
24
(Open and close two
contacts simultaneously.)
User Interlock Wiring
(dry contact closure)
E-STOP Connector
To Next Page
Loading...
Need help?
General