User`s guide

39
CHAPTER 3 - INSTALLATION
AND CONNECTION
Figure 3.6 d)
- Power and grounding connections
d) 28-33 A / 200-240 V and 24-30 A / 380-480 V models - Three phase power supply
DANGER!
Provide anAC disconnecting switch to switch OFF the input
power to the inverter. Thisdevice shall disconnect the inverter
from the AC input supply when required (e. g. during
maintenance services).
ATTENTION!
A contactor or another devicethat frequently disconnects and
reapplies the AC supply to the inverter in order to start and
stop the motor may cause damage to the inverter power
section. The drive is designed to use control input signals for
startingand stopping the motor. If used, the inputdevice must
not exceed one operation every 6 minutes otherwise the
inverter may be damaged.
ATTENTION!
The AC input for the inverter must have a grounded neutral
conductor.
NOTE!
TheAC input must be compatiblewiththe inverterrated voltage
Power supply line capacity:
30 kArms symmetrical amperes, 200-480 Vac maximum,
when protected by fuses rated maximum of 200 % device
input current.Voltage is the same as the device maximum
input voltage. In order to comply with the UL standard, UL
recognized fuses must be used.
3.2.4.1
AC InputConnection
PE
T
Q1
R
S
T
U
V
W
PE
Shielding
PE
-Ud
BR
+
Ud
Braking Resistor
W
V
U
Phase
Power Supply
DCR
DC Link
Inductor
(Optional)
PE
R
S
T
Circuit Breaker