hpmont HD09-S Series User Manual

Chapter 7 Detailed Function Introduction Shenzhen Hpmont Technology Co., Ltd.
- 66 - HD09-S Series User Manual V1.1
Overvoltage stall function (F19.18, F19.19)
Ref. Code Function Description Setting Range [Default]
F19.18 Overvoltage stalling options 0 - 1.000 [0.500]
0: No. 0.001 - 1.000: Allow.
• During the operation of the inverter, the detected bus voltage is compared with F19.19 and the bus
voltage is higher than F19.19 overvoltage stall point, the inverter automatically increases the output
frequency to prevent more energy from being fed back to the inverter by the load.
• The overvoltage suppression gain is set too small to effectively suppress the DC bus voltage increase.
• Setting the overvoltage suppression gain too large may cause the output frequency to fluctuate and
cause the entire system to oscillate. During Dec., the Acc. and Dec. time may be appropriate to avoid
system oscillation caused by overvoltage stall.
Note: When the overvoltage stall condition is held for more than 1 minute, the inverter reports an overvoltage stall
failure (E0007) and stops the output.
F19.19 Overvoltage speed lose point 0 - 1200V [Type confirmed]
During overvoltage during operation, the inverter may appropriately increase overvoltage stalling gain and
reduce overvoltage stalling point.
• The factory setting for a 220V model is 390V; The factory setting for a 380V model is 740V.
Over-voltage stall and brake components with the use of:
• Normally an overvoltage stall should be disabled
(F19.18 = 0). when the drive is installed with a brake
unit.
• However, when the feedback energy is heavy at the
moment of load and the braking component can not
discharge the feedback energy in time, over-voltage
protection may occur in the inverter. In this case,
over-voltage protection can be avoided by enabling
over-voltage stall. Pressure stall point (F19.19)
setting value should be greater than the brake
component of the operating voltage point.
△
F = F19.18 × (VDC - F19.19)
Automatic current limit function (F19.20 - F19.22)
Ref. Code Function Description Setting Range [Default]
F19.20 Automatic current limiting gain 0 - 1.000 [0.500]
When the inverter output current exceeds F19.21, the inverter automatically suppresses the output current to
further increase to avoid over-current protection.
• Automatic current limiting gain should be adjusted appropriately according to actual load conditions:
• Automatic current limiting gain setting is too small, can not effectively inhibit the output current
increase;
• Setting the auto-current-limiting gain too large may cause the output frequency to fluctuate and cause
the entire system to oscillate.
• F19.20 = 0, automatic current limiting is disabled.
Busbar voltage
F19.19
Setting frequency
Reference
frequency
Time
Time
Voltage
Frequency

hpmont HD09-S Series Specifications

General

Brand	hpmont
Model	HD09-S Series
Category	Inverter
Language	English