Mitsubishi F700 Series User Manual

129
Function assignment of external
terminal and control
4
PARAMETERS
(3) Speed detection hysteresis (Pr. 870)
 This function prevents chattering of the speed detection
signals.
When an output frequency fluctuates, the up to frequency
signal (SU) and output frequency detection signals (FU,
FU2) may repeat ON/OFF (chatters). Setting hysteresis
to the detected frequency prevents chattering of these
signals.
REMARKS
The output frequency compared with the set frequency changes depending on the control method.
CAUTION
 Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions.
Please set parameters after confirming the function of each terminal.
Parameters referred to 
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 123
Pr.87
0
Pr.42
Output frequency (Hz)
ON
ON
ON
FU
Example of output frequency detection signal (FU)
OFF OFF
REMARKS
Setting a higher value to this parameter slows the response of
frequency detection signals (SU, FU and FU2).
Control Method Compared Output Frequency
V/F control Output frequency
Simple magnetic flux vector control Output frequency before slip compensation

Mitsubishi F700 Series Specifications

General

Humidity	95% RH or less (non-condensing)
Control Method	V/F control
Protection Features	Overcurrent, overvoltage, undervoltage, overheat, short circuit
Communication Options	RS-485
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +65°C
Altitude	Up to 1000m above sea level
Overload Capacity	150% for 60 seconds
Cooling Method	Forced air cooling
Power Range	0.75 to 630 kW (1 to 845 hp)
Output Voltage	3-phase 200 to 240 VAC, 380 to 500 VAC (matching input voltage)