Delta Electronics VFD007S23A Manuel D’Utilisation

Chapter 2 Installation and Wiring|VFD-S Series 

Revision August 2006, SE08, SW V2.61 

2-17

  Make sure that power is only applied to the R/L1, S/L2, T/L3 terminals. Failure to comply 

may result in damage to the equipment. The voltage and current should lie within the 

range as indicated on the nameplate. 

  Check the following items after completing the wiring: 

1. 

Are all connections correct? 

2. 

No loose wires? 

3. 

No short-circuits between terminals or to ground?

 

 

A charge may still remain in the DC bus capacitors with hazardous voltages even if the 

power has been turned off. To prevent personal injury, please ensure that the power is 

turned off and wait ten minutes for the capacitors to discharge to safe voltage levels 

before opening the AC motor drive. 

 

 

1. 

All the units must be grounded directly to a common ground terminal to prevent electric shock, 

fire and interference. 

2. 

Only qualified personnel familiar with AC motor drives are allowed to perform installation, wiring 

and commissioning. 

3. 

Make sure that the power is off before doing any wiring to prevent electric shocks. 

 

 

Users must connect wires according to the circuit diagrams on the following pages. Do not plug a 

modem or telephone line to the RS-485 communication port or permanent damage may result. 

Terminals 1 & 2 are the power supply for the optional copy keypad only and should not be used for 

RS-485 communication.