Mitsubishi Electric FR-A820-00046 Instruction Manual page 390

Position control under vector control and PM sensorless vector control
Position detected signal (Pr. 1294 to Pr. 1297, FP signal)
● The position detected signal (FP signal) is turned ON when the current position [before the
electronic gear] exceeds the position detection (Pr. 1295 × 10000 + Pr. 1294). To use the FP signal,
set "60 (positive logic) or 160 (negative logic)" in any of Pr. 190 to Pr. 196 (output terminal function
selection) to assign the function.
● Whether the position detection is determined on the plus side or minus side can be selected by
Pr. 1296 "Position detection selection". When "0" is set, the position is detected on both the plus
and minus sides. When "1" is set, the position is detected on the plus side only. When "2" is set,
the position is detected on the minus side only.
Fig. 5-72:
● When a current position varies, the position detected signal may repeat ON/OFF (chatter). Setting
hysteresis to the detected position prevents chattering of the signal. Use Pr. 1297 "Position
detection hysteresis width" to set a hysteresis width.
Pr.1295 × 10000 + Pr. 1294
Fig. 5-73:
5 - 188
Position
[before electronic gear]
0
FP (For Pr. 1296 = 0)
FP (For Pr. 1296 = 1)
FP (For Pr. 1296 = 2)
Function of FP signal
Position
[before electronic gear]
Position detection level
FP
FP signal at current position variation
Position detection level Pr. 1295 10000 + Pr. 1294
ON ON
ON
ON
Current position
ON ON
Parameters
Time
Position detection level
Pr.1295 × 10000 + Pr. 1294
Pr. 1297
Pr. 1297
Time
ON
I002828E
I002829E