Mitsubishi Electric MELDAS MDS-R Series Specifications And Instruction Manual page 141

DANGER
CAUTION
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1. Wiring work must be done by a qualified technician.
2. Wait at least 15 minutes after turning the power OFF and check the voltage
with a tester, etc. before starting wiring. Failure to observe this could lead to
electric shocks.
3. Securely ground the drive units and servo/spindle motor.
4. Wire the drive units and servo/spindle motor after installation. Failure to
observe this could lead to electric shocks.
5. Do not damage, apply forcible stress, place heavy items on the cables or get
them caught. Failure to observe this could lead to electric shocks.
6. Always insulate the power terminal connection section. Failure to observe
this could lead to electric shocks.
1. Correctly and securely perform the wiring. Failure to do so could lead to
runaway of the servo/spindle motor resulting in possible injury.
2. Do not mistake the terminal connections.
Failure to observe this item could lead to ruptures or damage, etc.
3. Do not mistake the polarity ( + , – ). Failure to observe this item could lead to
ruptures or damage, etc.
4. Do not mistake the direction of the diodes for the surge absorption installed
on the DC relay for the motor brake and contactor (magnetic contactor)
control. The signal may not be output when a failure occurs.
5. Electronic devices used near the drive units may receive magnetic
obstruction. Reduce the effect of magnetic obstacles by installing a noise
filter, etc.
6. Do not install a phase advancing
capacitor, surge absorber or radio noise
filter on the power line (U, V, W) of the
servo/spindle motor.
7. Do not modify this unit.
8. The half-pitch connectors (CN1A, etc.)
on the front of the drive units have the
same shape. If the connectors are
connected incorrectly, faults could occur.
Make sure that the connection is correct.
9. Do not separately ground the connected
motor and drive unit as noise could be
generated. To ground the motor, connect
to the PE terminal for the drive unit's
CN31 connector, and connect to the
ground from the other CN30 connector's
PE terminal. (Ground to one point)
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7. Wiring and Connection
Servo drive unit
COM
(24VDC)
Control output
RA
signal
7 - 2
Servo drive unit
COM
(24VDC)
Control output
RA
signal