Example 2: External Safety Relay Typical; Application - Epson RC520 Manual

5.5.2 Example 2: External safety relay typical application
Control Unit (MIB)
Emergency Stop
switches of an
operation unit
Emergency
Stop
detection
Dynamic
brake
control
*2: The part indicated with a broken line shows
the circuit for the four-axis Drive Unit.
For the six-axis Drive Unit, there are six
motor drive modules in the circuit.
RC520 Rev.7
Setup & Operation 5.5 Circuit Diagrams (EMERGENCY Connector)
Drive Unit (DMB)
Dynamic brake relay of
each motor driver module
Emergency
Stop detection
*2
Dynamic
brake
control
Emergency
Stop detection
+24V
+24V
Safety Door input 1
Safety Door input 2
Latch release input
Safety Door latch release input
Close: latch off
Open: latch on
External +24V
9 Fuse *1
19
1
External
2
+24V GND
11
12
External
3
+24V
13
5
External safety relay
(The above diagram
is simplified for
representation.)
*1 For the protection of
the emergency stop
circuit, the fuse's
capacity should be
as follows:
- Meets the capacity
of the external
safety relay.
- 1A or less.
6
4
External
14
+24V
GND
10
External
20
+24V
8
7
18
17
16
15
External
+24V
GND
53