MD500 User Manual 7. Description of Parameters
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7.11.7 Any Frequency Detection
This function sets the detection value and detection width any frequency.
Figure 7-67 Any frequency reached detection
Output frequency (Hz)
OFF
OFF OFF
ON ON
Time
Frequency detection level
Frequency detection width
Frequency detection signal
(DO or relay)
Frequency detection width
The MD500 provides two groups of frequency detection parameters for the digital output functions 26 and 27. When the output
frequency is in the range of the detection width, the digital output terminal set for function 26 or 27 becomes on.
Function Code Parameter Name Setting Range Default
F8-30 Detection of frequency 1 0.00 Hz to max. frequency 50.00 Hz
F8-31 Detection width of frequency 1 0.0% to 100.0% (max. frequency) 0.0%
F8-32 Detection of frequency 2 0.00 Hz to max. frequency 50.00 Hz
F8-33 Detection width of frequency 2 0.0% to 100.0% (max. frequency) 0.0%
7.11.8 Zero Current Detection
If the drive's output current is equal to or smaller than the value set in F8-34 and the duration exceeds the value set in F8-35, the
digital output terminal set for function 34 becomes on.
Figure 7-68 Zero current detection
Output current
Time
Time
Zero current
detection signal
ON
Zero current
detection level
F8-35
Function Code Parameter Name Setting Range Default
F8-34 Zero current detection level 0.0% to 300.0% (rated motor current) 5.0%
F8-35 Zero current detection delay 0.00s to 600.00s 0.10s
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