Epson RC520 Safety And Installation page 47

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 Safety and Installation Rev.2
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
2. Installation
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
39