9
vacon • 88
Fault tracing
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
9.2
Fieldbus timeout fault (F53)
VACON
®
fieldbuses create a fieldbus timeout fault (F53) when a fault has occurred in the fieldbus
protocol and the AC drive is set to fieldbus control. If the control place is set to e.g. I/O, no fieldbus
fault is triggered even if a fault condition is met. The fault response can also be modified in the AC
drive application, see chapter 11.2 for more details.
OPTE6 creates a fieldbus fault in the following conditions:
If any of the Table 118 fault situations occur (even if no fault is triggered in AC drive), the CANopen
NMT state machine state can be affected. This is managed by object 0x1029:01 Communication Er-
ror. By default, the error response has value 0 = Change to NMT state Pre-operational.
Any other fault (e.g. overtemperature), does not affect the NMT state machine. The object 0x1029:02
Internal Error is fixed to value 1 = No change to NMT state.
Table 118. OPTE6 Fieldbus fault trigger conditions
Fault
Description
Remedy
CAN Passive
• "Communication timeout" parameter is other than
zero
• Either Transmit Error Counter or Receive Error
Counter raises above 127, causing the CAN driver
to go into passive state
• Check cabling and baud
rates of all nodes in net-
work
• Disable communication
timeout or increase the
time.
CAN BUS-
OFF
• "Communication timeout" parameter is other than
zero
• Transmit Error Counter raises above 255, causing
the CAN driver to go into bus-off state
Heartbeat
Consumer
• Heartbeat consumer is set
• At least one valid heartbeat message has been
received
• The heartbeat time has elapsed
• Check Heartbeat Con-
sumer time
• Check heartbeat pro-
ducer time of the pro-
ducer CANopen node
• Increase Heartbeat
Time
• Check cabling
Node Guard
• Guard Time and Life Time Factor are set,
• At least one valid node guard message has been
received
• Node Life Time has elapsed
• Check Node Life Time
(Life Time Factor Guard
Time)
• Check Node Guard pro-
ducer CANopen node
• Increase Node Life Time
• Check cabling
PDO Timer
• RPDO Timer is set
• At least one valid PDO message has been received
• RPDO Timer has elapsed
• Check RPDO Timer time
• Check PDO producer
CANopen node
• Increase PDO Timer
time
• Check cabling
Summary of Contents for CANopen OPTE6
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