DE-STA-CO F5-B AC Inverter Drive - Manual (Page 14)

14
Installation and Connection
3.3 Connection of Power Circuit
RISK OF ELECTRIC SHOCK! Always disconnect supply voltage before servicing the
COMBIVERT F5. Wait 5 minutes before attempting to change the connections as the
DC Bus capacitors may still be charged.
Absolutely pay attention to the nameplate voltage of the KEB COMBIVERT and the
connected line voltage. A 230V-unit will be immediately destroyed on a 460V-power
supply. Never exchange the line and motor cables. The unit will be destroyed.
The COMBIVERT F5 motor controls specified in this manual are suitable for use on a circuit
capable of delivering not more than 10kA rms symmetrical ampers at the rated maximum
voltage.
Connection of the F5 series motor control to voltage systems configured as corner grounded
delta, center tap grounded delta, open delta, or ungrounded delta may defeat the internal
noise suppression. With this type of voltage supply the maximum phase to ground voltage is
300VAC for 230 VACrms units and 500 VACrms for 600VAC units. A balanced, center ground
wye connection is always recommended. The three phase voltage imbalance must be less
than 2% phase to phase. Greater imbalance can lead to destruction of the unit.
3.3.1 Wiring instructions