ABB PSTX Series Installation And Commissioning Manual page 159

Status
Bad motor sound during start.
Bad motor sound during stop.
Motor does not start when given start
command by the hardwire inputs.
Motor does not start with Fieldbus.
Possible cause
Incorrect Initial/End level.
Incorrect Current limit level
or Torque limit level.
The motor is too small.
(Current is out of measuring
range.)
Thyristor conductivity is bad.
Incorrect ramp time for start.
Start and stop command given at
the same time.
The operation voltage is below
175 V.
Control wiring is not correct.
Start and stop command given at
the same time.
Keypad is in Local control mode.
Softstarter has tripped on fault or
protection.
Softstarter is in Local mode.
Fieldbus operation when fault
parameter is set to Change to I/O
control.
1SFC132081M0201 | Installation and commissioning manual | Troubleshooting
Solution
• Try different settings for the parameter Initial /End
Voltage. See chapter 7 Functions, or speak to your
ABB Sales Office..
• Try different settings for the parameter Current limit
level or Torque limit level. See chapter 7 Functions,
or speak to your ABB Sales Office.
• Make sure that you have the correct Softstarter for
this motor size.
For test purposes you can use small motor mod. See
chapter 7 Functions.
• Contact your ABB Sales Office.
• Make sure that you have the correct Softstarter for
this motor size.
For test purposes you can use small motor mode.
See chapter 7 Functions.
• Make sure that start and stop command is not given
at the same time.
• Do a check of the operation voltage.
• Do a check of the connections for start and stop.
• Make sure that start and stop command is not given
at the same time.
• Make sure that the keypad is not in Local Control
mode.
• Push the R\L-key to change to Remote Control mode.
• Make sure that parameter Fieldbus control is set to
No.
• Do a reset on an active event.
• Reset tripping events.
• Do a reset on an active event.
Reset tripping events.
• Make sure that the Stop bit of the binary output
telegram setting is set to 1.
• Make sure that parameters match between the PLC
and the Softstarter Fieldbus documentation for the
used Fieldbus protocol.
• Make sure that the Auto mode bit of the binary output
telegram setting is set to 1.
• Do a check if the HMI is set to remote mode.
• Make sure that the Local Mode digital input on the
ABB FieldBus Plug adapter is set to Remote.
• Make sure that Fieldbus disable control in DI is not
connected.
• Make sure that the Fieldbus control parameter is set
to On.
• If the parameter Fieldbus failure op is set to Change to
I/O control when fault occurs, there is a 10 seconds
delay before you can re-start after communication is
connected.
10
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