116 Fault tracing
Power
Drive does not start when applying AC power:
• Check that the motor output phases are not short circuited. The drive trips on a
motor phase short circuit and will not restart unless AC power is removed.
Remove all power from the drive, correct the short circuit and restart the drive.
Communication
Drive status display is off:
• Check that the 24 V DC control circuit supply is correctly connected at X2, and is
switched on. If a 24 V DC supply is not provided, an AC supply (or DC supply,
page
54) must be present at X1 to allow communication.
Drive status display shows ‘I’:
• The MicroFlex e190 is in firmware recovery mode. This means that it does not
boot fully, and allows Mint WorkBench to download firmware from the Choose
Firmware dialog. See
SW1 linear switches - startup functions on page 72.
Mint WorkBench fails to detect the MicroFlex e190:
• Ensure that the MicroFlex e190 is powered and the drive status display is
illuminated (page
114).
• Check that the Ethernet cable is connected between the PC and MicroFlex e190.
Check that the cable is connected to port E3 (on the front panel) and not port E1
or E2.
• Check that the PC's Ethernet port has been correctly configured for TCP/IP
operation, and enabled for use with Mint WorkBench (see Configure the PC
Ethernet adapter on page 94).
• Check that any PC firewall or security software does not prevent communication
on TCP ports 5000 and 5001, and UDP port 5050. These ports are essential for
communication with the MicroFlex
e190.
• Try an alternative cable or different port on the PC.
Mint WorkBench
The Spy window does not update:
• The system refresh has been disabled. Go to the Tools, Options menu item,
select the System tab and then choose a System Refresh Rate (500
ms is
recommended).
Cannot communicate with the controller after downloading firmware:
• After firmware download, always power-cycle the MicroFlex e190.
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