YASKAWA FSDrive-MV1000 Instructions Manual page 55

Always ground the ground terminals. Also be sure to carry out the following grounding work.
Improper equipment grounding could result in death or serious injury by an electric shock through contact with
ungrounded electrical equipment.
• Ground terminals (EA):
• Control circuits (200 V or less): grounding resistance of 100 Ω or less
Do not touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Tighten all terminal screws to the specified tightening torque.
Loose electrical connections could result in death or serious injury by fire due to overheating of electrical connections.
Do not use an improper voltage source.
Failure to comply could result in death or serious injury by fire.
Verify that the rated voltage of the drive matches the voltage of the incoming power supply before applying power.
Observe proper electrostatic discharge procedures (ESD) when handling the drive.
Failure to comply may result in ESD damage to the drive circuitry.
Use only shielded cable to wire analog input/output signals for the control circuit.
Failure to comply could result in drive malfunction.
Use shielded twisted-pair wires and ground the shield to the ground terminal of the drive.
Be careful not to create a short circuit between the analog output terminals.
Failure to comply could cause the drive malfunction.
Do not ground to terminals other than the designated grounding terminals.
Failure to comply could cause the drive to malfunction.
Do not modify the drive circuitry.
Failure to comply could result in damage to the drive and will void warranty.
Do not attempt to modify or alter the drive.
Yaskawa is not responsible for any modification of the drive made by the user.
Check all the wiring after installing the drive and connecting other devices to ensure that all connections are correct.
Failure to comply could result in damage to the drive.
Consider voltage tolerance levels and insulation in applications with a high input voltage or particularly long wiring
distances. Contact your Yaskawa representative or the nearest Yaskawa sales office.
The analog output terminals are for monitoring output frequency and current. These terminals are not used for controls
such as feedback control. Be careful not to create a short circuit between analog output terminals.
Failure to comply could cause the drive malfunction.
Keep the wiring for the main circuit separate from that for the control circuit.
Failure to comply could cause the drive malfunction.
Select a power supply with a capacity larger than that of the drive to be connected.
When connecting multiple drives to a single power supply, select a power supply with a capacity larger than the sum of
the power required by all the drives to be connected. Even when the power supply has sufficient capacity, the power
supply voltage may drop when the power is turned on, causing malfunction of connected devices if the power supply
has a large power impedance.
YASKAWA ELECTRIC EZZ010928 FSDrive-MV1000 Instructions
W ARNING
grounding resistance of 10 Ω or less
Fire Hazard
NOTICE
3.1 Safety Messages
55
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