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Electrical installation
72
•
Note:
Moisture inside the motor casing will reduce the insulation resistance. If this
is suspected, dry the motor and repeat the measuring.
IT (ungrounded) systems
EMC E202 is not suitable for use in an IT (ungrounded) system. If the drive is
equipped with EMC E202, disconnect the filter before connecting the drive to
the supply network. For detailed instructions on how to do this, please contact your
local ABB representative.
WARNING!
If a drive with EMC E202 is installed on an IT system [an
ungrounded power system or a high resistance-grounded (over 30 ohms) power
system], the system will be connected to earth potential through the EMC filter
capacitors of the drive. This may cause danger or damage the unit.
Setting the earth fault (ground fault) trip level
Grounded systems
See page
28
.
IT (ungrounded) systems
On ungrounded systems, an external monitoring unit (Bender IRDH265 or IRDH275,
option
+Q954
) is used. Refer to its documentation for set-up instructions.
Note:
On ungrounded systems, the internal earth current monitoring must be
deactivated. See page
28
.
ohm
M
3~
U1
V1
W1 PE
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Содержание ACS800-07-0610-3
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Страница 44: ...Hardware description 38 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 60: ...Mechanical installation 54 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 96: ...Electrical installation 90 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 104: ...Motor control and I O board RMIO 98 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 108: ...Installation checklist and start up 102 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 122: ...Fault tracing 116 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 138: ...Technical data 132 Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 144: ...Dimensions 138 Frame size 1 D4 2 R8i Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 156: ...Dimensions 150 Frame size 2 D4 2 R8i Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 162: ...Dimensions 156 Frame size 2 D4 3 R8i Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 173: ...Dimensions 167 Frame size 3 D4 4 R8i Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 185: ...Dimensions 179 400 mm Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 186: ...Dimensions 180 600 mm Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...