Fault Codes - Amtech Axpert-Eazy Series Instruction Manual

Appendix-B: Fault Codes
Sr.
Fault Name
No.
1 Over Current Fault
2 Drive Over Load Fault
3 Adjustable Over Current
Fault
Under Current Fault
4
5 U Phase Current Sensor
Fail
6 Over Voltage Fault
7 Under Voltage Fault
8 Charging Fault
9 Output Phase Loss
10 Reference Missing
11 External Fault
12 Thermistor Over
Temperature Fault
13 Auto Tuning Fault
14 Emergency Stop
13
15 EEPROM Fault
A
16 Ground (Earth) Fault
Amtech
A.8
This fault indicates that the unit has tripped due to excessive over current
(200% of the rated current). This is very fast acting. A short circuit condition
on the output will also cause the unit to display this fault. The drive will not
take second start before 1 minute. 3 starts permitted in 10 minutes. After 3
starts, message will be displayed "Do not Reset, Contact AMTECH"
This fault Indicate that the output current exceeded the thermal operation time
having inverse time characteristics. When Normal-duty is set, the standard
characteristics are 120% for one minute in respect to the motor rated current
value and 140% for 2.5 seconds. When Heavy-duty is set, the standard is
150% for one minute in respect to the motor rated current value and 175% for
2.5 seconds. The over load counter starts after 100% load current for Normal
-duty and 105% load current for Heavy-duty.
This fault occurs when load current cross the adjustable over current level
programmed in B302 for 50 msec.
This fault occurs when the load current falls below the programmed under
current level (B304) for 1 second after reaching set speed.
It indicates that U phase current sensor has failed.
This fault occurs when the dc link voltage exceeds 785 VDC for 400 V series,
965 VDC for 500 V series and 1160 VDC for 600 V series level may be due to
increased mains voltage or regeneration. If this fault occurs. The fault is
instantaneous in order to protect the unit. Over voltage can be a serious
condition and can lead to failure of the semiconductor components. When an
over voltage fault occurs, the cause should be investigated and promptly
corrected. The drive will not take second start before 1 minute. 3 starts
permitted in 10 minutes. After 3 starts, message will be displayed "Do not
Reset, Contact AMTECH"
This fault indicates that the unit has shut down due to the dc bus voltage
being low (below the under voltage level) after PLCT time (C509) for 3 msec
or PLCT activated 3 times in 1 minute.
This fault occurs when dc bus voltage doesn't reach at preset level within 5
seconds after power ON.
This fault indicates that the one of the output phase has lost its current flow
(below 5%) and so the other two phases has over loaded (>70%) for five
cycles. This fault will not occur during speed search operation. It can be
disabled using C307. Note that this fault will not occur if the output
terminals are open circuit.
This fault occurs if the analog current input (4-20 mA) falls below 3 mA for 80
msec when it is selected as reference source.
This fault occurs if the external fault input selected at the terminal is missing.
This comes from the user.
This fault occurs if heat sink temperature ≥90 ° C or <0° C for 2 second. In
cases of multiple Inverter Units, this fault is for the first Inverter Unit.
This fault indicates that the unit has failed in the auto tuning process.
This fault indicates that the unit has shut down due to the emergency stop
command.
This fault indicates that the data received from the EEPROM is incorrect.
After reset, it will store default values in the EEPROM memory.
This fault indicates that the unit has shut down due to ground fault. This fault
Fault Description