AC-SVX001A-EN
85
Table 26.
Diagnostics — AFD (continued)
Diagnostic
Name and
Source
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
AFD 2A Bus
Under Voltage
Circuit
Immediate
(decel)
NonLatch
All
The bus voltage dropped below the Under Voltage
Level and there is not enough voltage to reliably
operate the load, or input voltage was lost on all
phases (Power Loss). The drive shall automatically
clear this diagnostic if the undervoltage is corrected
within 15s, or if a power loss event, when power is
restored at any later time.
Local
AFD 1A Bus
Over Voltage
Circuit
Immediate
NonLatch
Holding,
Running
Bus overvoltage indicated the high bus voltage cut
out has been exceeded while the AFD is in a non-
stopped mode. The drive shall automatically clear
this diagnostic if the dc bus voltage returns to normal
range within 15s.
Local
AFD 2A Bus
Over Voltage
Circuit
Immediate
NonLatch
Holding,
Running
Bus overvoltage indicated the high bus voltage cut
out has been exceeded while the AFD is in a non-
stopped mode. The drive shall automatically clear
this diagnostic if the dc bus voltage returns to normal
range within 15s.
Local
AFD 1A Loss Of
Motor Control
Circuit
Immediate
NonLatch
All
AFD generated faults that can occur due to external
power anomalies or abnormal motor loading that
require ability to auto reset. This diagnostic maps to
the occurrence of AFD generated faults of: Hardware
Over Current, Over Speed Limit, IPM Over Current,
Drive Powerup, IPM and Speed Estimate Error.
Local
AFD 2A Loss Of
Motor Control
Circuit
Immediate
NonLatch
All
AFD generated faults that can occur due to external
power anomalies or abnormal motor loading that
could be a transient or temporary condition. This
diagnostic maps to the occurrence of AFD generated
faults of: Hardware Over Current, Over Speed Limit,
IPM Over Current, Drive Powerup, IPM and Speed
Estimate Error.
Local
AFD 1A Motor
Fault
Circuit
Immediate
Latch
All
AFD generated faults that imply internal failures.
This diagnostic maps to the occurrence of AFD
generated faults of: Motor Overload, Load Loss, and
Output Phase Loss. Check output wiring and motor
health.
Local
AFD 2A Motor
Fault
Circuit
Immediate
Latch
All
AFD generated faults that imply internal failures.
This diagnostic maps to the occurrence of AFD
generated faults of: Motor Overload, Load Loss, and
Output Phase Loss. Check output wiring and motor
health.
Local
AFD 1A Over
Temperature
Circuit
Immediate
Latch
All
Heatsink Over Temperature (185°F/85°C),
Transistor Over Temperature (320°F/160°C) or
Control Board Over Temperature. Check drive liquid
or air cooling.
Local
AFD 2A Over
Temperature
Circuit
Immediate
Latch
All
Heatsink Over Temperature (185°F/85°C),
Transistor Over Temperature (320°F/160°C) or
Control Board Over Temperature. Check drive liquid
or air cooling.
Local
AFD 1A Motor
Current
Overload
Circuit
Immediate
(decel)
Latch
Running
Software Filtered Overcurrent has been detected.
Can be loss of control of motor, or hardware failure.
Local
AFD 2A Motor
Current
Overload
Circuit
Immediate
(decel)
Latch
Running
Software Filtered Overcurrent has been detected.
Can be loss of control of motor, or hardware failure.
Local
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