P020: Current Limit Function; P021: Ocs Level - Panasonic VF100 Instruction Manual

P020£ºCurrent limit function
If the output current reaches the overcurrent stall level (OCS level) due to an overload operation,
the frequency is automatically reduced.
When the load returns to the correct level, the frequency is automatically returned to the original
setting, and the operation is continued. This function is effective for preventing overcurrent trips
in machines that knead glutinous materials, etc.
The function's validity and the deceleration time for automatically lowering the frequency when
the output current reaches the overcurrent stall level are set with this parameter.
The operation level (overcurrent stall level) can be set with parameter "P021: OSC level".
Data setting range(s)
Output
current
Output
frequency
Note
•E
When "P020: Current limit function" is already set, overcurrent trip prevention function still applies.
P021£ºOCS level
The OCS level (overcurrent stall prevention operation level) and current limit function level can
be set with a percent (%) to the inverter's rated current.
Data setting range (%)
Note
•E
The OCS level and current limit levels are the same.
•E
This setting is not related to the electronic thermal level and overload detection level.
74
00 •E0.1 to 9.9
* "00" is set when the current limit function is disabled.
Deceleration time
according to parameter
P020 setting value
1 to 200
OCS level
(parameter P021)
Normal
acceleration time
Does not decelerate to below 10Hz
Related
P018, P021
parameters
Related
P018, P020
parameters