Mitsubishi Electric MDS-D-SPJ3 Specification Manual page 13

Always connect the motor to the drive unit's output terminals (U, V, W).
Do not directly connect a commercial power supply to the servomotor. Failure to observe this could
result in a fault.
When using an inductive load such as a relay, always connect a diode as a noise measure parallel to
the load.
When using a capacitance load such as a lamp, always connect a protective resistor as a noise
measure serial to the load.
Do not reverse the direction of a diode which
connect to a DC relay for the control output
signals such as contractor and motor brake
output, etc. to suppress a surge. Connecting it
backwards could cause the drive unit to
malfunction so that signals are not output, and
emergency stop and other safety circuits are inoperable.
Do not connect/disconnect the cables connected between the units while the power is ON.
Securely tighten the cable connector fixing screw or fixing mechanism. An insecure fixing could cause
the cable to fall off while the power is ON.
When using a shielded cable instructed in the instruction manual, always ground the cable with a cable
clamp, etc.
Always separate the signals wires from the drive wire and power line.
Use wires and cables that have a wire diameter, heat resistance and flexibility that conforms to the
system.
(3) Trial operation and adjustment
Check and adjust each program and parameter before starting operation. Failure to do so could lead to
unforeseen operation of the machine.
Do not make remarkable adjustments and changes of parameter as the operation could become
unstable.
The usable motor and unit combination is predetermined. Always check the models before starting trial
operation.
The linear servomotor does not have a stopping device such as magnetic brakes. Install a stopping
device on the machine side.
CAUTION
Servodrive unit
COM
(24VDC)
Control output
signal
Servodrive unit
COM
(24VDC)
Control output
RA
signal
RA