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Troubleshooting
4-15
Drive will not reverse motor direction.
Stopping the drive results in a Decel Inhibit fault.
Cause(s)
Indication
Corrective Action
Digital input is not selected for
reversing control.
None
Check [Digital Inx Sel]
. Choose
correct input and program for reversing mode.
Digital input is incorrectly wired.
None
Check input wiring.
Direction mode parameter is
incorrectly programmed.
None
Reprogram [Direction Mode] for analog “Bipolar”
or digital “Unipolar” control.
Motor wiring is improperly phased
for reverse.
None
Switch two motor leads.
A bipolar analog speed command
input is incorrectly wired or signal is
absent.
None
1. Use meter to check that an analog input
voltage is present.
2. Check wiring.
Positive voltage commands forward direction.
Negative voltage commands reverse direction.
Cause(s)
Indication
Corrective Action
The bus regulation feature is
enabled and is halting deceleration
due to excessive bus voltage.
Excess bus voltage is normally due
to excessive regenerated energy or
unstable AC line input voltages.
Internal timer has halted drive
operation.
Decel Inhibit
fault screen.
LCD Status
Line indicates
“Faulted”.
1. See Attention statement on
2. Reprogram bus regulation (parameters 161
and 162) to eliminate any “Adjust Freq”
selection.
3. Disable bus regulation (parameters 161 and
162) and add a dynamic brake.
4. Correct AC input line instability or add an
isolation transformer.
5. Reset drive.
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: ......