Ground Connection - YASKAWA V1000 Serie Guía De Referencia Rápida

3 Electrical Installation
Main and Control Circuit Wiring
Wiring the Main Circuit Input
Consider the following precautions for the main circuit input.
• Use fuses recommended in
• If using a ground fault circuit breaker, make sure that it can detect both DC and high frequency current.
• If using an input switch is used, make sure that the switch does not operate not more than once every 30 minutes.
• Use an AC reactor on the input side of the drive:
– to suppress harmonic current.
– to improve the power factor on the power supply side.
– when using an advancing capacitor switch.
– with a large capacity power supply transformer (over 600 kVA).
Wiring the Main Circuit Output
Consider the following precautions for the output circuit wiring.
• Do not connect any other load than a 3 phase motor to the drives output.
• Never connect a power source to the drives output.
• Never short or ground the output terminals.
• Do not use phase correction capacitors.
• If using a contactor between the drive and motor, it should never be operated when the drive is outputting a voltage. Operating while there is
voltage output can cause large peak currents, thus tripping the over current detection or damage the drive.

Ground Connection

Take the following precautions when grounding the drive.
• Never share the ground wire with other devices such as welding machines, etc.
• Always use a ground wire, that complies with electrical equipment technical standards. Keep ground wires as short as possible. Leakage current
is caused by the drive. Therefore, if the distance between the ground electrode and the ground terminal is too long, potential on the ground
terminal of the drive will become unstable.
• Make sure the ground conductor complies with technical standards and local safety rules. The drive has an EMC filter installed and the leakage
current exceeds 3.5 mA. Therefore according to IEC61800-5-1, a protective earthing conductor with a cross section of at least 10 mm
mm 2 (Al) must be used, or automatic power supply interruption in case of discontinuity of the protective earthing conductor must be provided.
• When using more than one drive, do not to loop the ground wire.
Control Circuit Wiring Precautions
Consider the following precautions for wiring the control circuits.
• Separate control circuit wiring from main circuit wiring and other high-power lines.
• Separate wiring for control circuit terminals MA, MB, MC (contact output) from wiring to other control circuit terminals.
• For external control power supply use a UL Listed Class 2 power supply.
• Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults.
• Connect only Digital Operator JVOP-180 (LCD), JVOP-182(LED) or JVOP-181 (USB Copy Unit) to external RJ45 connector on drives model
code CIMR-...-0081. Do not connect any other device to the RJ45 connnector.Drive or external device may be damaged.
• Drives model code CIMR-...0080 can be connected to PC by using JVOP-181(USB Copy Unit). Use the RJ45 connector where the Digital
Operator is connected.
• Ground the cable shields with the maximum contact area of the shield and ground.
• Cable shields should be grounded on both cable ends.
• If flexible wires with ferrules are connected they might fit tightly into the terminals. To disconnect them, grasp the wire end with a pair of pliers,
release the terminal using a straight-edge screw driver, turn the wire for about 45 and pull it gently out of the terminal. For details, refer to the
Technical Manual. Use this procedure for removing the wire link between HC, H1 and H2 when the Drive Disable function is utilized.
Main Circuit Terminals
Terminal
L1, L2, L3
(located at the built-in EMC filter) Main circuit power supply input
U/T1, V/T2, W/T3
B1, B2
+1, +2
+1, –
(2 terminals)
EN 14
Main Circuit on page 13 only.
Type
Drive output
Braking resistor
DC reactor connection
DC power supply input
Ground Terminal, (green colored
screws)
Connects line power to the drive.
Drives with single-phase 200 V input power have no L3 terminal.
Connects to the motor.
For connecting a braking resistor.
Linked at shipment. Remove the link to install a DC choke.
For connecting a DC power supply.
YASKAWA Europe TOMP_C710606_75A V1000 IP66 - Quick Start Guide
Function
2 (Cu) or 16