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Safety
6Safety
Fig.6-3 ： Example of safety measures (CR750 wiring example 3）
<Wiring example 3>: Connect the emergency stop switch, door switch, and enabling device of peripheral equipment to the con-
troller. The power supply for emergency stop input uses the power supply of peripheral equipment. Monitor
the emergency stop state by the peripheral equipment side.
<Operation of the emergency stop>
If the emergency stop switch of peripheral equipment is pushed, the robot will also be in the emergency
stop state. And, if the emergency stop switch of OP or T/B is pushed in the state of the power of con
-
troller OFF, peripheral equipment state can be the emergency stop also.
非常停止スイッチ
（2接点タイプ）
周辺装置
安全柵のドア
周辺装置側
電源24V
監視
周
辺
装
置
側
内
部
回
路
CNUSR2
内部非常停止回路
未接続
非常停止出力
モード出力
RA
RA
RA
}
ﾄﾞｱｽｲｯﾁ入力
ｲﾈｰﾌﾞﾘﾝｸﾞ
ﾃﾞﾊﾞｲｽ
16/17
41/42
エラー出力
}
監視
1
CNUSR11/CNUSR12
2
3
4
5
6
7
8
9
10
13
14
11
12
OP非常停止
ボタン
TB非常停止
ボタン
内部電源 24V
安全リレー
Controller
*1) Each of the connectors, CNUSR11 and CNUSR12, are assigned with the same pin number, creating 2
systems in each terminal. It is absolutely necessary to connect the 2 systems.
*2) You can see in the diagram that connector CNUSR2 has 2 terminals and 2 systems (16/17 indicates 2
terminals at pin number 16 and pin number 17). It is absolutely necessary to connect the 2 systems.
*3)The T/B emergency stop button connected with the controller.
*4) Emergency stop input relay.
*5)
Refer to the Standard specification manual or the Special specification manual for the enabling device.
*6) The emergency stop button of the robot controller.
(Only specification with the operation panel.)
*7) The emergency stop input detection relay uses the controller’s internal safety relay control. If the
emergency stop input detection relay is switched OFF, emergency stop is detected and the safety relay
is also switched OFF.
Power supply in the
robot controller 24V
OP Emergency
stop button
TB Emergency
stop button
Not connected
Door switch input
Enabling
device
Mode output
Error output
Emergency stop output
Safety relay
Internal emergency stop
circuit
Emergency stop switch
(2- contact type)
Peripheral
equipment
Safety
fence door
Power sup
-
ply 24V
*1)
*2)
*3)
*6)
*4)
*5)
*7)
Monitor
Monitor
Circuit