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Output terminal function parameters
2.3.19 Start-time ground fault detection selection (Pr. 40 )
2.4 Output terminal function parameters
2.4.1 Up-to-frequency (Pr. 41 )
Use Pr. 64 or Pr. 65 (output terminal function selection) to assign the terminal used for
SU signal output.
You can choose whether to make ground fault detection at start valid or invalid.
Ground fault detection is executed only right after the start signal is input to the
inverter.
Protective function will not activate if a ground fault occurs during operation.
Parameter Name
Factory
Setting
Setting
Range
Remarks
40
Start-time ground
fault detection
selection
00, 1
0:Ground fault detection for
protection is not executed.
1:Ground fault detection for
protection is executed.
Setting is
enabled when
Pr. 30 = "1".
CAUTION
1. If a ground fault is detected with "1" set in Pr. 40, alarm output " " is
detected and the output is shut off.
2. If the motor capacity is less than 0.1kW, ground fault protection may not be
provided.
REMARKS
When a ground fault is detected with "1" set in Pr. 40, an approximate 20ms delay occurs at
every start.
The ON range of the up-to-
frequency signal (SU) output
when the output frequency
reaches the running frequency
can be adjusted between 0 and
±100% of the running frequency.
This parameter can be used to
ensure that the running
frequency has been reached to
provide the operation start
signal etc. for related
equipment.
Parameter Name
Factory
Setting
Setting
Range
Remarks
41 Up-to-frequency 10% 0 to 100% Setting is enabled when Pr. 30 = "1".
CAUTION
Using Pr. 64 or Pr. 65 to change the terminal assignment may affect the other functions.
Please make setting after confirming the function of each terminal. (Refer to page 100.)
♦
Related parameters♦
• Assignment of SU signal to terminal ⇒ Pr. 64 "RUN terminal function selection", Pr. 65 "A, B, C
terminal function selection" (refer to page 100)
Running
frequency
Adjustable
range
Output signal
(SU)
Time
Start signal
Output
frequency (Hz)
Pr.41
OFF
ON OFF
ON OFF