Frame 3A and 3B Installation
3-23
PowerFlex 700L Frames 2, 3A, and 3B Liquid-Cooled AC Drives User Manual
2.
Screw the bolt back into the panel.
3.
Cut the lug off the disconnected ground wire and apply a wire nut to its
end.
4.
Tie wrap the disconnected ground wire to keep it away from any
electrical connections.
For more information on ungrounded distribution systems, see Wiring and
Grounding Guidelines for Pulse Width Modulated (PWM) AC Drives
,
publication DRIVES-IN001.
Note:
Removing the Common Mode capacitor
and input MOVs makes the drive more vulnerable to high voltage line
spikes.
Figure 3.22 Removing Common Mode Capacitor and MOV
Installing Input Power
Wiring
This section describes incoming line components and how to install them.
Installing Transformers and Reactors (Not Recommended)
Frame 3A and 3B drives may be used on distribution systems with 200,000
amps or less symmetrical fault current capacity. The Drive Input
components consist of a 3% line reactor and a harmonic line filter.
Additional input inductance is not recommended.
Selecting and Verifying Control Transformer Voltage
A control transformer in the input filter bay of the drive is used to match the
input line voltage of the drive to the 115V control voltage. If your line
voltage is different than the voltage class specified on the drive nameplate, it
may be necessary to change transformer taps as described below.
MOV location for drives manufactured before May 2008
(drives manufactured after May 2008 have this device
mounted on the back of the panel)
MOV Lug
(See Capacitor Lug
and Resistor Lug)
1 µF Common Mode Capacitor
10 mm / P#2
5.1 N•m (45 lb•in)
Capacitor Lug Screw
M6 x 16 mm Lg
Capacitor
Receptacle Faston
FU4
FU5
TB2
FU1
FU2
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