Mitsubishi Electric Q170MSCPU-S1 - Injury Prevention; Various Precautions

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3. For injury prevention
4. Various precautions
Strictly observe the following precautions.
Mistaken handling of the unit may lead to faults, injuries or electric shocks.
(1) System structure
CAUTION
 Do not apply a voltage other than that specified in the instruction manual on any terminal.
Doing so may lead to destruction or damage.
 Do not mistake the terminal connections, as this may lead to destruction or damage.
 Do not mistake the polarity (+/-), as this may lead to destruction or damage.
 Do not touch the heat radiating fins of controller or servo amplifier, regenerative resistor
and servo motor, etc., while the power is ON and for a short time after the power is turned
OFF. In this timing, these parts become very hot and may lead to burns.
 Always turn the power OFF before touching the servo motor shaft or coupled machines, as
these parts may lead to injuries.
 Do not go near the machine during test operations or during operations such as teaching.
Doing so may lead to injuries.
CAUTION
 Always install a leakage breaker on the Motion controller and servo amplifier power
source.
 If installation of an electromagnetic contactor for power shut off during an error, etc., is
specified in the instruction manual for the servo amplifier, etc., always install the
electromagnetic contactor.
 Install the emergency stop circuit externally so that the operation can be stopped
immediately and the power shut off.
 Use the Motion controller, servo amplifier, servo motor and regenerative resistor with the
correct combinations listed in the instruction manual. Other combinations may lead to fire
or faults.
 Use the Motion controller, base unit and motion module with the correct combinations
listed in the instruction manual. Other combinations may lead to faults.
 If safety standards (ex., robot safety rules, etc.,) apply to the system using the Motion
controller, servo amplifier and servo motor, make sure that the safety standards are
satisfied.
 Construct a safety circuit externally of the Motion controller or servo amplifier if the
abnormal operation of the Motion controller or servo amplifier differ from the safety
directive operation in the system.
 In systems where coasting of the servo motor will be a problem during the forced stop,
emergency stop, servo OFF or power supply OFF, use dynamic brakes.
 Make sure that the system considers the coasting amount even when using dynamic
brakes.
 In systems where perpendicular shaft dropping may be a problem during the forced stop,
emergency stop, servo OFF or power supply OFF, use both dynamic brakes and
electromagnetic brakes.