Precautions For Power Supply And Motor Wiring - Amtech Axpert-Eazy Series Instruction Manual

2-2 Precautions for power supply and motor wiring

2
Always turn the device's input power OFF before starting wiring.
Failure to do so could lead to electric shocks or fires.
Carry out grounding that complies with the standards of the country where the AC DRIVE is being
installed.
Failure to do so could lead to electric shocks or fires.
Wiring must always be done by a qualified electrician
Failure to observe this could lead to electric shocks or fires.
Always install the device before starting wiring.
Failure to do so could lead to electric shocks or injuries.
Use circuit breaker or fuses that match with the capacity of AC DRIVE power supply.
Failure to do so could lead to fires.
Do not connect an AC power supply to the output terminals (U, V, W) and DC terminals (L+1,
L+2, and L–).
Failure to observe this could lead to injuries or fires.
Confirm that the product's rated input voltage and frequency match the power supply voltage and
frequency.
Failure to do so could lead to injuries or fires.
Install an overheating protection device on the dynamic braking resistor, and shut off the power
with this fault signal.
Failure to do so could lead to fires in the event of abnormal overheating.
Do not directly connect a resistor to the DC terminals (L+1, L+2, and L–).
Failure to observe this could lead to fires.
Tighten the terminal screws with the designated tightening torque.
Failure to do so could lead to fires.
Correctly connect the output (U, V, W) to motor terminals to ensure proper phase sequence.
Failure to do so could cause the motor to rotate in reverse and the machine to be damaged.
When using the encoder, ensure its proper connections. The signal polarity specifications differ
according to the encoder. If the specifications differ from the specified AC DRIVE standard
specifications, correct the signal polarity as specified. Refer Chapter-10 for more information on
encoder specifications.
Failure to observe this could lead to reverse rotation or abnormal acceleration of the motor, and to
injuries or machine damage.
Refer to below figure and wire the main circuits for the power supply and motor, etc.
Always observe the following precautions for wiring.
There is a risk of electric shocks.
The AC DRIVE has a built-in electrolytic capacitor, so a charge will remain even when the AC DRIVE
power is turned off. Always observe the following items before carrying out the wiring work.
Wait at least 20 minutes after turning the power off before starting work. Make sure that the
displays on the Digital Operation Panel have gone out before removing the cover.
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2.2
DANGER
CAUTION
CAUTION