gefran VDI100 Series User Manual

Power supply:
•
Caution
Make sure the correct voltage is applied to avoid damaging the inverter.
Molded-case circuit breaker (MCCB) or fused disconnect:
• A molded-case circuit breaker or fused disconnect must be installed between the AC source and the inverter that
conforms to the rated voltage and current of the inverter to control the power and protect the inverter.
•
Caution
Do not use the circuit breaker as the run/stop switch for the inverter.
Ground fault detector / breaker:
•
Caution
Install a ground fault breaker to prevent problems caused by current leakage and to protect personnel. Select
current range up to 200mA, and action time up to 0.1 second to prevent high frequency failure.
Magnetic contactor:
• Normal operations do not need a magnetic contactor. When performing functions such as external control and auto
restart after power failure, or when using a brake controller, install a magnetic contactor.
•
Caution
Do not use the magnetic contactor as the run/stop switch for the inverter.
AC line reactor for power quality:
• When inverters are supplied by a high capacity power source (> 600kVA), an AC reactor can be connected to improve
the power factor.
Install Fast Acting Fuse:
• To protect peripheral equipment, install fast acting fuses in accordance with the specifications in section
11.4.
Input Noise filter:
• A filter must be installed when there are inductive loads affecting the inverter. The inverter meets EN 61800-3:2012,
category C3 or C2 when the Gefran special filter is used. See section 11.3.
Inverter:
• Output terminals T1, T2, and T3 are connected to U, V, and W terminals of the motor. If the motor runs in reverse while
the inverter is set to run forward, swap any two terminals connections for T1, T2, and T3.
•
Caution
To avoid damaging the inverter, do not connect the output terminals T1, T2, and T3 to AC input power.
•
Caution
Connect the ground terminal properly. (230V class: Rg <100W; 400V class: Rg <10W.)
Motor:
• If the inverter drives multiple motors the output rated current of the inverter must be greater than the total current of all
the motors.
VDI100 • Instruction manual 23

gefran VDI100 Series Specifications

General

Brand	gefran
Model	VDI100 Series
Category	Inverter
Language	English