Installation manual

Diagnostics and Troubleshooting
290 S1A28692 03/2010
Error code
•
If the display does not light up, check the power supply to the drive.
• The assignment of the Fast stop or Freewheel functions will help to prevent the drive starting if the
corresponding logic inputs are not powered up. The ATV32 then displays [Freewheel] (nSt) in freewheel
stop and [Fast stop] (FSt) in fast stop. This is normal since these functions are active at zero so that the
drive will be stopped if there is a wire break.
• Check that the run command input is activated in accordance with the selected control mode
([2/3 wire control] (tCC) and [2 wire type] (tCt) parameters, page 73
).
• If an input is assigned to the limit switch function and this input is at zero, the drive can only be started up
by sending a command for the opposite direction (see page 209
).
• If the reference channel or command channel is assigned to a communication bus, when the power supply
is connected, the drive will display [Freewheel] (nSt) and remain in stop mode until the communication
bus sends a command.
Clearing the detected fault
In the event of a non resettable detected fault:
• Disconnect all power, including external control power that may be present.
• Lock all power disconnects in the open position.
• Wait 15 minutes to allow the DC bus capacitors to discharge (the drive LEDs are not indicators of the
absence of DC bus voltage).
• Measure the voltage of the DC bus between the PA/+ and PC/– terminals to ensure that the voltage is less
than 42 Vdc.
• If the DC bus capacitors do not discharge completely, contact your local Schneider Electric representative.
Do not repair or operate the drive.
• Find and correct the detected fault.
• Restore power to the drive to confirm the detected fault has been rectified.
In the event of a resettable detected fault, the drive can be reset after the cause is cleared:
- By switching off the drive until the display disappears completely, then switching on again.
- Automatically in the scenarios described for the [AUTOMATIC RESTART] (Atr-) function, page
234
.
- By means of a logic input or control bit assigned to the [FAULT RESET] (rSt-) function, page 232
.
- By pressing the STOP/RESET key on the graphic display keypad if the active channel command is
the HMI (see [Cmd channel 1] (Cd1) page 140
).
Code Name / Description
dGt- [DIAGNOSTICS]
This menu can only be accessed with the graphic display terminal. It displays detected faults and their cause in plain text and can
be used to carry out tests, see page 58
.
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com