344 Rockwell Automation Publication 750-PM001N-EN-P - February 2017
Chapter 6 Troubleshooting
ATEX Faults
Tab le 20 lists the ATEX-specific fault, the action taken when the drive faults, and
its description.
Table 20 - ATEX Fault Types, Descriptions, and Actions
Single Incremental Encoder
Faults and Alarms
Tab le 21 contains a list of encoder-specific faults and alarms, the type of fault or
alarm, the action that is taken when the drive faults, the parameter that is used to
configure the fault or alarm (if applicable), and a description and action (where
applicable).
Table 21 - Single Incremental Encoder Fault and Alarm Types, Descriptions, and Actions
Event
No.
(1)
Fault/Alarm Text Type Fault
Action
Configuration
Parameter
Auto
Reset
Description/Action(s)
xx011 PTC Over Temp Resettable
Fault
Coast An over-temperature condition has been detected in the motor, or the
sensor path has been broken.
xx012 PTC ShortCircuit Resettable
Fault
Coast A short circuit condition has been detected in the sensor path. If unable
to clear fault, be sure the thermal sensor that is connected is a PTC type
and not a thermostatic type.
xx013 ATX VoltageLoss Resettable
Fault
Coast Possible hardware damage.
The motor to the thermal sensor is shorted.
Excessive EMC noise due to improper grounding/shielding.
xx014 ThermostatOvrTmp Resettable
Fault
Coast An over-temperature condition has been detected in the motor, or the
sensor path has been broken.
(1) xx indicates the port number where the ATEX option is installed.
Event
No.
(1)
Fault/Alarm Text Type Fault
Action
Configuration
Parameter
Auto
Reset
Description/Action(s)
xx000 Open Wire Configurable P3
[Fdbk Loss Cfg]
The encoder module has detected an input signal (A, B, or Z) in the same
state as its complement (A Not, B Not, or Z Not). For open wire detection
to work, the encoder signals must be differential (not single ended). The
Z channel is only checked when enabled. See P1 [Encoder Cfg].
xx001 Phase Loss Configurable P3
[Fdbk Loss Cfg]
More than 30-phase loss (open wire) events have occurred over an 8
millisecond time period. The same restrictions as for Open Wire
detection apply.
xx002 Quadrature Loss Configurable P3
[Fdbk Loss Cfg]
Quadrature loss events occur when simultaneous edge transitions occur
on both the A and B encoder channels. This fault occurs when more than
10 quad loss events over a 10 millisecond time period are detected. Only
valid when both A and B channels are used (not Bit 1 “A Chan Only”) in
P1 [Encoder Cfg].
xx058 Module Defaulted Fault Coast Module was commanded to write default values.
(1) xx indicates the port number. See Fault and Alarm Display Codes on page 308 for an explanation.
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