Mitsubishi MELDAS MDS-C1 Instruction Manual page 4

1. Electric shock prevention
Do not open the front cover while the power is ON or during operation. Failure to observe this
could lead to electric shocks.
Do not operate the unit with the front cover removed. The high voltage terminals and charged
sections will be exposed, and can cause electric shocks.
Do not remove the front cover even when the power is OFF unless carrying out wiring work or
periodic inspections. The inside of the units is charged, and can cause electric shocks.
Wait at least 15 minutes after turning the power OFF before starting wiring, maintenance or
inspections. Failure to observe this could lead to electric shocks.
Ground the servo drive unit and servomotor with Class C (former class 3) grounding or higher.
Wiring, maintenance and inspection work must be done by a qualified technician.
Wire the servo drive unit and servomotor after installation. Failure to observe this could lead to
electric shocks.
Do not touch the switches with wet hands. Failure to observe this could lead to electric shocks.
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.
1. Fire prevention
Install the servo drive units, servomotors and regenerative resistor on noncombustible material.
Direct installation on combustible material or near combustible materials could lead to fires.
Shut off the power on the servo drive unit side if the servo drive unit fails. Fires could be
caused if a large current continues to flow.
When using a regenerative resistor, provide a sequence that shuts off the power with the
regenerative resistor's error signal. The regenerative resistor could abnormally overheat and
cause a fire due to a fault in the regenerative transistor, etc.
2. Injury prevention
Do not apply a voltage other than that specified in Instruction Manual on each terminal. Failure
to observe this item could lead to ruptures or damage, etc.
Do not mistake the terminal connections. Failure to observe this item could lead to ruptures or
damage, etc.
Do not mistake the polarity (
damage, etc.
The servo drive unit's fins, regenerative resistor and servomotor, etc., may reach high
temperatures while the power is ON, and may remain hot for some time after the power is
turned OFF. Touching these parts could result in burns.
WARNING
CAUTION
, ). Failure to observe this item could lead to ruptures or
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