4.8 Configuring Function Codes for Drive Controls
4-28
[ 2 ] If driving the motor under vector control with sensor (synchronous motors)
Configuring the function codes concerning a PG (pulse generator) and PG signals
If using “Vector control with sensor (F42* = 16)”, it is necessary to set the following function codes in order to
receive receipt speed feedback value from the encoder.
For details on how to modify the function code data, see Chapter 3 “3.4.1 Setting up function codes “Data
Setting””.
Table 4.8-12
Feedback
encoder
(Pulse input
format)
2: A, B phase 90° phase difference (B phase lead) +
Z-phase
3: A, B phase 90° phase difference (A phase lead) +
Z-phase
4: A, B phase + U, V, W phase magnetic pole
position detection method
If using a Fuji standard synchronous motor (GNF2
series), set to 4.
2: A, B phase
(B phase lead)
Feedback input
(Encoder pulse
resolution)
Set “Pulse number of the target motor encoder” in
hexadecimal notation.(Displayed in decimal
notation on the multi-function keypad)
0400 HEX/1024 P/R
If the rotation direction/speed detection signal from the encoder does not match with the motor rotation
direction, excessive current is applied. In the case of the vector control with sensor (F42*=6), the motor
does not reach the set frequency but rotates slowly at the speed equivalent to the slip frequency. In this
case, check that the phase order of motor wires is correct and the encoder wires are correctly connected
and are not broken.
In 4_17 to 4_18 of I/O check, the number of feedback pulses per second of AB phase and Z phase can be
checked. In 3_29 of the drive monitor, the frequency [Hz] calculated from the speed detection signal from
the encoder can be checked. These are displayed regardless of the control method if the PG option card
is mounted and the encoder is wired.
To Next Page
Loading...
