Inovance MD800 Series - Undervoltage and Fast Current Limit Protection

Function Applications
-515-
● If the running command is valid when the AC drive fault is reset, the AC drive does not respond to
the running command. The startup protection can be disabled only after the running command is
canceled.
Related Parameters
Parame
ter No.
Parameter Name
Default Value
Setting Range Parameter Description
F8-21
Startup protection
0
0: Disabled
1: Enabled
This helps to avoid unexpected motor
running at power-on or fault reset.
4.6.2 Undervoltage and Fast Current Limit Protection
When the bus voltage is lower than the value of A5-06, the AC drive reports a fault.
Related Parameters
Parameter
No.
Parameter Name
Default Value
Setting Range Parameter Description
A5-04
Fast current limit
1
0: Disabled
1: Enabled
This function is used to minimize the
overcurrent faults, ensuring normal
running of the AC drive. It is
recommended to disable this function
in hoist applications such as cranes.
A5-06
Undervoltage
threshold
Three-phase
400 V: 350.0 V
Single-phase
200 V: 200.0 V
150.0 V to 455.0 V
If the bus voltage is lower than the
value of A5-06 when the AC drive is
running, the AC drive reports E09.00.
If the bus voltage is lower than the
value of A5-06 when the AC drive
stops, the AC drive reports A09.00.