![Trane VLT AQUA Drive FC 202 VLT AutomationDrive FC 301 Скачать руководство пользователя страница 73](http://html1.mh-extra.com/html/trane/vlt-aqua-drive-fc-202-vlt-automationdrive-fc-301/vlt-aqua-drive-fc-202-vlt-automationdrive-fc-301_instruction-manual_1149856073.webp)
Symptom
Possible cause
Test
Solution
Overload trips
Motor overloaded
Motor is drawing too much current for
the application.
Perform startup and verify motor current
is within specifications. If not, reduce the
load on the motor.
Loose connections
Look for signs of overheating on
connections to OL.
Perform pre-startup check for loose
connections and tighten. Replace any
overheated components and wires.
OL not set correctly
An improperly set OL can cause the OL
to trip too soon. See pre-startup
procedure for correct setting.
Set correct motor current on OL.
Contactor fails
to pull in
Contamination
Remove contactor and check for
contamination.
If contamination is found, repair or
replace.
Defective coil
Compare coil resistance to contactor
specification. Inspect the coil for signs
of overheating and damages.
If readings are not the same or if there
are visible signs of damage, replace the
coil or contactor.
Auxiliary contact binding action
Remove auxiliary contacts and test
contactor action.
If contactor operates with auxiliaries
removed, replace auxiliary contacts.
Contactor fails
to drop out
Contamination
Remove the contactor and check for
contamination.
If contamination is found, repair or
replace.
Defective coil
Compare coil resistance to functional
contactors of the same size.
If readings are not the same or there are
visible signs of damage, replace the coil
or contactor.
Auxiliary contact binding action
Remove auxiliary contacts and test
contactor action.
If the contactor operates with auxiliaries
removed, replace auxiliary contacts.
Mains current
imbalance
greater than
3%
Problem with mains power
Rotate incoming power leads into
option panel one position; A to B, B to
C, and C to A.
If the imbalanced leg follows the wire, it
is a power problem. Causes can vary.
Contact an electrician or power expert
for a solution.
Problem with option panel
Rotate incoming power leads into
option panel one position; A to B, B to
C, and C to A.
If the imbalanced leg stays on the same
option panel input terminal, it is a
problem with the option panel. Contact
the factory for assistance.
Motor current
imbalance
greater than
3%
Problem with motor or motor wiring Rotate outgoing motor leads one
position; U to V, V to W, and W to U.
If the imbalanced leg follows the motor
lead, the problem is in the motor or
wiring to the motor. Causes can vary.
Contact an electrician or motor expert
for a solution.
Problem with option panel
Rotate outgoing motor leads one
position; U to V, V to W, and W to U.
If the imbalanced leg stays on the same
option panel output terminal, it is a
problem with the option panel. Contact
the factory for assistance.
Start Up Troubleshooting
Vertical Bypass/Non Bypass Panel
7-4
MG.13.A1.22 - VLT
®
is a registered Danfoss trademark
7
7
Содержание VLT AQUA Drive FC 202 VLT AutomationDrive FC 301
Страница 1: ...MAKING MODERN LIVING POSSIBLE Instruction Manual Vertical Bypass Non Bypass Panel...
Страница 3: ...Safety Vertical Bypass Non Bypass Panel MG 13 A1 22 VLT is a registered Danfoss trademark...
Страница 45: ...Installation Vertical Bypass Non Bypass Panel 3 28 MG 13 A1 22 VLT is a registered Danfoss trademark 3 3...
Страница 49: ...Start Up Vertical Bypass Non Bypass Panel 4 4 MG 13 A1 22 VLT is a registered Danfoss trademark 4 4...
Страница 88: ...www danfoss com drives MG13A122 130R0264 MG13A122 Rev 2011 08 10...
Страница 89: ......