Mitsubishi Electric MR-E A Series Instruction Manual page 61

3. SIGNALS AND WIRING
3.6.2 Detailed description of the interfaces
This section gives the details of the I/O signal interfaces (refer to I/O Division in the table) indicated in
Sections 3.3.2.
Refer to this section and connect the interfaces with the external equipment.
(1) Digital input interface DI-1
Give a signal with a relay or open collector transistor.
External power
supply 24VDC
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200mA or more
(2) Digital output interface DO-1
A lamp, relay or photocoupler can be driven. Provide a diode (D) for an inductive load, or an inrush
current suppressing resister (R) for a lamp load. (Permissible current: 40mA or less, inrush current:
100mA or less)
(a) Inductive load
Servo amplifier
Servo amplifier
R: Approx. 4.7
VIN
SON, etc.
Switch
SG
VIN
Load
ALM, etc.
SG
If the diode is not
connected as shown,
the servo amplifier
will be damaged.
External power
supply 24VDC
10%
3 - 30