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1-4
Installation/Wiring
Input Power Conditioning
The drive is suitable for direct connection to input power within the rated
voltage of the drive (see
input power conditions which may cause component damage or
reduction in product life. If any of the conditions exist, as described in
, install one of the devices listed under the heading
Corrective
Action
on the line side of the drive.
Important:
Only one device per branch circuit is required. It should be
mounted closest to the branch and sized to handle the total
current of the branch circuit.
Table 1.C Input Power Conditions
The drive Safety Ground -
(PE) must be connected to system ground.
Ground impedance must conform to the requirements of national and
local industrial safety regulations and/or electrical codes. The integrity
of all ground connections should be periodically checked.
Figure 1.3 Typical Grounding
Input Power Condition
Corrective Action
Low Line Impedance (less than 1% line reactance)
•
Install Line Reactor
(1)
•
or Isolation Transformer
(1)
Refer to
for accessory ordering information.
Greater than 120 kVA supply transformer
Line has power factor correction capacitors
Line has frequent power interruptions
Line has intermittent noise spikes in excess of
6000V (lightning)
Phase to ground voltage exceeds 125% of normal
line to line voltage
•
Remove MOV jumper to ground.
•
or Install Isolation Transformer
with grounded secondary if
necessary.
Ungrounded distribution system
General Grounding Requirements
SHLD
U/T1
V/T2
W/T3
R/L1
S/L2
T/L3
userman.book Page 4 Friday, June 21, 2002 2:48 PM
Содержание Allen-Bradley PowerFlex 4
Страница 4: ...soc 2 userman book Page 2 Friday June 21 2002 2 48 PM ...
Страница 6: ...ii userman book Page ii Friday June 21 2002 2 48 PM ...
Страница 32: ...1 22 Installation Wiring Notes userman book Page 22 Friday June 21 2002 2 48 PM ...
Страница 70: ...4 8 Troubleshooting Notes userman book Page 8 Friday June 21 2002 2 48 PM ...
Страница 74: ...A 4 Supplemental Drive Information Notes userman book Page 4 Friday June 21 2002 2 48 PM ...
Страница 82: ...B 8 Accessories and Dimensions Notes userman book Page 8 Friday June 21 2002 2 48 PM ...
Страница 88: ...C 6 RS485 DSI Protocol Notes userman book Page 6 Friday June 21 2002 2 48 PM ...
Страница 92: ...Index 4 Notes userman book Page 4 Friday June 21 2002 2 48 PM ...
Страница 93: ...userman book Page 1 Friday June 21 2002 2 48 PM ...