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Installation/Wiring
VTAC 9 drives contain protective MOVs and common mode capacitors
that are referenced to ground. To guard against drive damage, these
devices should be disconnected if the drive is installed on 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 all the jumper(s) shown in the figure and table
below. See Wiring and Grounding Guidelines for PWM AC Drives,
publication DRIVES-IN001 for more information on ungrounded
system installation.
Figure 1.12 Typical Frame B - E Jumper Locations (C Frame Shown)
Figure 1.13 Phase to Ground MOV Removal (Frame B…E)
Figure 1.14 Common Mode Capacitors to Ground Removal (Frame B…E)
Disconnecting MOVs and Common Mode Capacitors
!
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 terminal of the Power
Terminal Block and the -DC test point. The voltage must be zero.
Frame
Jumper
Removes
B, C & D
JP3 – JP2
MOV to Ground
E
JP2 – JP1
MOV and Line to Line
Capacitors to Ground
Frame
Jumper
Removes
B
JP6 – JP5
Common Mode Capacitors to Ground
C and D
JP3B – JP3A
Common Mode Capacitors to Ground
E
JP3 – JP4
Common Mode Capacitors to Ground
JP3
JP2
JP3
A
JP3B
R
S
T
1
2
3
4
Three-Phase
A
C Input
Jumper
(
S
ee Table)
DC+
DC–
Converter
Common
M
ode
Capacitors
Jumper
(
S
ee Table)
Содержание 9VT201-007HTNNN
Страница 1: ...VTAC 9 AC Drive Firmware Version 3 xx User Manual ...
Страница 4: ...soc 2 ...
Страница 14: ...P 8 Overview Publication 9VT UM001D EN P Notes ...
Страница 56: ...1 42 Installation Wiring Publication 9VT UM001D EN P Notes ...
Страница 62: ...2 6 Start Up Publication 9VT UM001D EN P Notes ...
Страница 130: ...3 68 Programming and Parameters Publication 9VT UM001D EN P Notes ...
Страница 150: ...4 20 Troubleshooting Publication 9VT UM001D EN P Notes ...
Страница 176: ...A 26 Supplemental Drive Information Publication 9VT UM001D EN P Notes ...
Страница 196: ...B 20 Using the LCD OIM Publication 9VT UM001D EN P Notes ...
Страница 212: ...C 16 Application Notes Publication 9VT UM001D EN P Notes ...
Страница 223: ......