Mitsubishi MELFA SQ Series, Standard Specifications Manual

Page: 76 / 138

3-65 Key switch interface (Only for the DU1A-772 drive unit)
3 Controller
3.9 Key switch interface (Only for the DU1A-772 drive unit)
Connect the key switch extension cable of the option and change the right of robot's operation by the switch
operation. （Refer to Page 73, "(3) Key switch extension cable (Only for the DU1A-772 drive unit)" )
The key switch can be installed in the operation panel of customer preparation.
Moreover, refer to "(1)Specification of the key switch interface" and the switch prepared by customer can also be
used.
<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.3-24 ： Mode changeover switch image figure
(1) Specification of the key switch interface
The function and specification of the key switch interface are shown below.
Table 3-10 ： Specification of the key switch interface
Item Specification Remarks
Rated voltage DC24V Supply from the drive unit
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 (optional)
Or the switch of customer
preparation
Key switch interface
<Key switch interface terminal>
KEY11
KEY12
KEY21
KEY22
Table 3-9 ： Function of the key switch interface
Name and Function
Change mode
Note1)
Note1) The mode changes by both opening or both closing between KEY11-12 and
between KEY21-22. Maintain the current mode except it.
Name Function MANUAL AUTOMATIC
KEY11 1st line KEY input
Open Close
KEY12 Power 24V of KEY11
KEY21 2nd line KEY input
Open Close
KEY22 Power 24V of KEY21