Gram IF 4000 Manual De Uso página 259

4-6 Troubleshooting
Drive does not Start from Integral Keypad.
Cause(s)
Integral keypad is not enabled. Green LED above Start key is
I/O Terminal 01 "Stop" input is
not present.
Drive does not respond to changes in speed command.
Cause(s)
No value is coming from the
source of the command.
Incorrect reference source is
being selected via remote
device or digital inputs.
Motor and/or drive will not accelerate to commanded speed.
Cause(s)
Acceleration time is excessive. None
Excess load or short
acceleration times force the
drive into current limit, slowing
or stopping acceleration.
Speed command source or
value is not as expected.
Programming is preventing the
drive output from exceeding
limiting values.
Indication
not illuminated.
None
Indication
The drive "Run" indicator is lit
and output is 0 Hz.
None
Indication
None
None
None
Corrective Action
• Set parameter P036
Source] to option 0 "Keypad".
• Set parameter A051 - A052
[Digital Inx Sel] to option 5
"Local" and activate the input.
Wire inputs correctly and/or install
jumper.
Corrective Action
• Check d012
[Control Source]
correct source.
• If the source is an analog input,
check wiring and use a meter to
check for presence of signal.
• Check d002
[Commanded Freq]
to verify correct command.
• Check d012
[Control Source]
correct source.
• Check d014
[Dig In Status]
see if inputs are selecting an
alternate source. Verify settings
for A051 - A052 [Digital Inx
• Check P038
[Speed Reference]
for the source of the speed
reference. Reprogram as
necessary.
• Review the Speed Reference
Control chart on page
Corrective Action
Reprogram P039 [Accel Time 1]
A067 [Accel Time 2].
Compare d003 [Output Current]
A089 [Current Limit].
Remove excess load or reprogram
P039 [Accel Time 1] or A067
Time 2].
Check for improper A084
Boost] setting.
Verify d002 [Commanded
Check d012 [Control Source]
proper Speed Command.
Check P035 [Maximum Freq]
insure that speed is not limited by
programming.
[Start
for
for
to
Sel].
1-17.
or
with
[Accel
[Start
Freq].
for the
to