Start-Time Earth (Ground) Fault Detection Selection (Pr. 40 ); Output Terminal Function; Up-To-Frequency Sensitivity (Pr. 41 ) - Mitsubishi Electric FR-S520E Series Instruction Manual

2.3.19 Start-time earth (ground) fault detection selection (Pr. 40
You can choose whether to make earth (ground) fault detection at start valid or invalid.
Earth (Ground) fault detection is executed only right after the start signal is input to
the inverter.
Protective function will not activate if an earth (ground) fault occurs during operation.
Parameter Name
Start-time earth
40 (ground) fault
detection selection
CAUTION
1. If an earth (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, earth (ground) fault protection may
not be provided.
REMARKS
When an earth (ground) fault is detected with "1" set in Pr. 40, an approximate 20ms delay
occurs at every start.

2.4 Output terminal function

2.4.1 Up-to-frequency sensitivity (Pr. 41
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
Up-to-frequency
41
sensitivity
Use Pr. 64 or Pr. 65 (output terminal function selection) to assign the terminal used for
SU signal output.
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 110.)
♦
Related parameters
•
Assignment of SU signal to terminal ⇒ Pr. 64 "RUN terminal function selection", Pr. 65 "A, B, C
Factory Setting
Setting Range
0 0, 1
Output signal
(SU)
Start signal
Factory Setting
Setting Range
10% 0 to 100%
♦
terminal function selection" (refer to page 110)
95

Output terminal function

Remarks
0: Earth (Ground) fault
detection for protection is
not executed.
1: Earth (Ground) fault
detection for protection is
executed.
)
Running
frequency
OFF ON
ON
Remarks
Setting is enabled when Pr. 30 = "1".
)
Setting is
enabled when
Pr. 30 = "1".
"
Adjustable
range Pr.41
Time
OFF
OFF
2