Aux Fan Failure From Power Module; Regen Drive Failed To Synchronise To Supply; Drive Control Board Over Temperature; Power Device Over Temperature Based On Thermal Model - Emerson SP1201 Installation Manual

Safety Product
Introduction
Information information
Trip
HF31

Aux fan failure from power module

231 Replace auxiliary fan
HF32 Power stage - a module has not powered up in a multi-module parallel drive
232 Check AC power supply
It.AC
Output current overload timed out (I
Ensure the load is not jammed / sticking
20
Check the load on the motor has not changed
Ll.SYNC

Regen drive failed to synchronise to supply

Pr 3.03 displays the reason for the synchronisation failure:
0: Tripped during synchronisation
1: Tripped while running
39
2: Line frequency too low (<30.0Hz)
3: Line frequency too high (>100.0Hz)
4: Error during synchronisation of PLL to supply
O.CtL

Drive control board over temperature

Check cubicle / drive fans are still functioning correctly
Check cubicle ventilation paths
23 Check cubicle door filters
Check ambient temperature
Reduce drive switching frequency
O.ht1

Power device over temperature based on thermal model

Reduce drive switching frequency
21 Reduce duty cycle
Reduce motor load
O.ht2 Heatsink over temperature
Check cubicle / drive fans are still functioning correctly
Check cubicle ventilation paths
Check cubicle door filters
22 Increase ventilation
Reduce drive switching frequency
Reduce duty cycle
Reduce motor load
Oht2.P Power module heatsink over temperature
Check cubicle / drive fans are still functioning correctly
Check cubicle ventilation paths
Check cubicle door filters
105 Increase ventilation
Reduce drive switching frequency
Reduce duty cycle
Reduce motor load
O.ht3 Drive over-temperature based on thermal model
Check cubicle / drive fans are still functioning correctly
Check cubicle ventilation paths
Check cubicle door filters
27
Increase ventilation
Reduce duty cycle
Reduce motor load
Oht4.P Power module rectifier over temperature or input snubber resistor over temperature (size 4 and above)
Check for supply imbalance
Check for supply disturbance such as notching from a DC drive
Check cubicle / drive fans are still functioning correctly
Check cubicle ventilation paths
102 Check cubicle door filters
Increase ventilation
Reduce drive switching frequency
Reduce duty cycle
Reduce motor load
Unidrive SP Regen Installation Guide
Issue Number: 2
System Mechanical Electrical
design installation installation
2
t) - accumulator value can be seen in Pr 4.19
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Getting
Optimisation Parameters
started
Diagnosis
Technical Component
Diagnostics
data sizing
209