Rockwell Automation 20Y PowerFlex Active Front End - Manual (Page 119)

Rockwell Automation Publication 20Y-UM001E-EN-P - July 2014 119
Troubleshooting Chapter 5
70 Power Unit ➀ One or more of the IGBTs were operating in the active
region instead of desaturation. This can be caused by
excessive transistor current or insufficient base drive
voltage. Clear the fault.
71 Periph Loss ➁ The 20-COMM-x communication adapter has a fault
on the network side. Check the DPI device event queue and
corresponding fault information for the device.
81 Port DPI Loss ➁ The DPI port has stopped communicating. A
SCANport device was connected to a drive operating
DPI devices at 500k baud. 1. If the adapter was not intentionally
disconnected, check the wiring to the port.
Replace the wiring, port expander, adapters,
Main Control board, or complete AFE as
required.
2. Check the HIM connection.
3. If an adapter was intentionally disconnected
and the [Logic Mask] bit for that adapter is set
to ‘1’, this fault will occur. To disable this fault,
set the bit in parameter [Logic Mask] for the
adapter to ‘0’.
94 Hardware Enbl ➁ An enable signal is missing from the control terminal
block. 1. Check the control wiring.
2. Check the position of the hardware enable
jumper.
3. Check the digital input programming.
100 Param Chksum ➁ The checksum read from the Main Control board does
not match the checksum calculated. 1. Restore the AFE to the factory defaults.
2. Cycle the power.
3. Reload User Set if used.
104 PwrBrd Chksum ➁ The checksum read from the EEPROM does not match
the checksum calculated from the EEPROM data. 1. Cycle the power.
2. Contact Technical Support (see page 124 ).
3. If the problem persists, replace the AFE.
106 MCB-PB Config ➁ The AFE rating information stored on the power
board is incompatible with the Main Control board. 1. Reset the fault or cycle the power.
2. Replace the Main Control board.
107 New IO Option ➁ A new option board was added to the Main Control
board. 1. Restore the AFE to factory defaults.
2. Reprogram parameters as necessary.
113 Fatal App ➁ A Fatal Application error has occurred. Replace the Main Control board.
120 I/O Change ➁ An option board has been replaced. Reset the fault.
121 I/O Comm Loss ➁ An I/O Board lost communications with the Main
Control board. 1. Check the connector.
2. Check for induced noise.
3. Replace I/O board or Main Control board.
Table 21 - Fault/Alarm Types, Descriptions, and Actions (Continued)
No. Name
Fa
u
lt
Alarm
Description Action (if appropriate)