Mitsubishi Electronics CR751-D Manuel D’Utilisation

3-91 

  Mode changeover switch input   

3 Controller

3.7 Mode changeover switch input

Connect the key switch of customer prepared and change the right of robot’s operation by switch operation.
The key switch can be installed in the operation panel of customer preparation.
<Right of operation (mode)>

AUTOMATIC.......................The operation from external equipment becomes available. Operation which needs 

the right of operation from T/B cannot be performed. It is necessary to set the 
parameter for the rights of operation to connection with external equipment. Refer 
to the separate volume, "Instruction Manual/Detailed Explanation of Functions and 
Operations" for detail.

MANUAL ..............................When T/B is available, only the operation from T/B becomes available. Operation 

which needs the right of operation from external equipment cannot be performed.

Fig.3-20 ： Mode changeover switch image figure (CR751)

(1) Specification of the key switch interface

The function and specification of the key switch interface are shown below.

Table 3-7 ： Specification of the mode changeover switch input

Item

Specification

Remarks

Rated voltage

DC24V

Supply from the controller.

Current rating

Approx. 10mA

Select the switch or button which operates normally in 24V/10mA.

Input resistance

Approx. 2.2kΩ

Response time (OFF->ON)

Approx. 15ms

Example: The response time the program starts, after pushing the run button.

Common method

1 point per 

common

Connection method

Connector

Conformity electric wire size

AWG#24 to #18

0.2 to 0.75mm

2

Maker/Type

-

Maker: PHOENIX CONTACT/ Type: FKC2.5/4-STF-5.0B

MODE

MANUAL

AUTOMATIC

Mode changeover switch
(Customer-prepared)

CNUSR1

Table 3-6 ： Function of the key switch interface

Pin number and Function (Connector: CNUSR1)

Change mode 

Note1) 

Note1) The mode changes by both opening or both closing between 30-5 pin and between 35-10 

pin. Maintain the current mode except it.

Pin number

Function

MANUAL

AUTOMATIC

49

1st line KEY input

Open

Close

24

Power supply +24V of pin 
number 49

50

2nd line KEY input

Open

Close

25

Power supply +24V of pin 
number 50

[Note] In the customer's system, do not ground the + side of 24V power supply prepared by customer for connect to the 

controller. (related with emergency stop and parallel input/output) If it connects with the controller under the condi

-

tion that the + side is grounded, it will lead to failure of controller.