Delta Electronics VFD-EL Power Supply User Manual


 
Chapter 2 Installation and Wiring|
2-2 Revision August 2008, 2ELE, V1.02
DANGER!
1. 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.
2. Only qualified personnel familiar with AC motor drives is allowed to perform installation, wiring
and commissioning.
3. Make sure that the power is off before doing any wiring to prevent electric shock.
2.1 Wiring
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. The
pins 1 & 2 are the power supply for the optional copy keypad only and should not be used for RS-485
communication.