Rockwell Automation 20D PowerFlex 700S Drive Ph I Control, Frames 1...11 - Manual (Page 30)

1-16 Installation/Wiring
Regenerative Unit to Drive Connections
Regenerative Brake Mode
Regenerative Bus Supply Mode
Disconnecting MOVs and
Common Mode Capacitors PowerFlex 700S drives contain protective MOVs and common mode
capacitors that are referenced to ground. To guard against drive damage,
these devices must be disconnected if the drive is installed on a resistive
grounded distribution system or an ungrounded distribution system where
the line-to-ground voltages on any phase could exceed 125% of the nominal
line-to-line voltage. To disconnect these devices, remove the jumper(s)
listed in
Table 1.F . Jumpers can be removed by carefully pulling the jumper
straight out. See the Wiring and Grounding Guidelines for Pulse Width
Modulated (PWM) AC Drives, publication DRIVES-IN001 for more
information on ungrounded system installation.
Table 1.F Jumper Removal
Frame(s)
Terminals
1336 Regen
PowerFlex 700S
1 - 4 DC+ & DC- BR1 & DC-
5 & 6 DC+ & DC- DC+ & DC-
Frame(s)
Terminals
1336 Regen
PowerFlex 700S
1 - 4 DC+ & DC- DC+ & DC-
5 & 6 DC+ & DC- DC+ & DC- of the Common Bus Drives
!
ATTENTION: To avoid an electric shock hazard, verify that the
voltage on the bus capacitors has discharged before removing/
installing jumpers. Measure the DC bus voltage at the +DC & –
DC terminals of the Power Terminal Block. The voltage must be
zero.
Frames Jumper Component Jumper Location No.
1 PEA Common
Mode
Capacitors Remove the Control Assembly and Cassette.
Jumpers are located on the drive Power Board (see
Figure 1.6 ).
➊
PEB MOV’s
➋
2-4 PEA Common
Mode
Capacitors Jumpers are located above the Power Terminal Block
(see
Figure 1.6 ).
➌
PEB MOV’s
➍
5 Wire Common
Mode
Capacitors Remove the I/O Cassette. The green/yellow jumper is
located on the back of chassis in the area shown (see
Figure 1.6 ). Disconnect, insulate and secure the wire
to guard against unintentional contact with chassis or
components.
➎
MOV’s Note location of green/yellow jumper wire in Figure
1.6 . Disconnect, insulate and secure the wire guard
against unintentional contact with chassis or
components.
➏
Input Filter
Capacitors