Mitsubishi Electric FR-D720S SC EC, Instruction Manual

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Function assignment of external terminals Parameter
6 - 104
Output frequency detection (FU, Pr. 42, Pr. 43)
The output frequency detection signal (FU) is output when the output frequency reaches or ex-
ceeds the Pr. 42 setting. This function can be used for electromagnetic brake operation, open
signal, etc.
When the detection frequency is set to Pr. 43, frequency detection for reverse operation use only
can also be set. This function is effective for switching the timing of electromagnetic brake op-
eration between forward rotation (rise) and reverse rotation (fall) during vertical lift operation,etc.
When Pr. 43
≠
9999, the Pr. 42 setting is used for forward rotation and the Pr. 43 setting is used
for reverse rotation.
The FU signal can also be assigned to the other terminal by setting "4" (positive logic) or "104"
(negative logic) in any of Pr. 190, Pr. 192 or Pr. 197.
I001798E
Fig. 6-54: Frequency detection for forward and reverse rotation
NOTES All signals are off during DC injection brake.
The output frequency to be compared with the set frequency is the output frequency before
slip compensation is performed.
Changing the terminal assignment using Pr. 190, Pr. 192 or Pr. 197 may affect the other
functions. Make setting after confirming the function of each terminal.
FU
Output
frequency
Time
Forward
rotation
Reverse
rotation
ON ON