Fuji Electric ALPHA7, User Manual

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CHAPTER 3 OPERATION
3-14
Operation with VS Type
3
3.4.5 Extension Mode
Compatible mode with standard type of FALDIC-

Series
If parameter PA1_01 is “6,” operation is made with control signal inputs similar to those of the

Series.
If the pulse operation is performed, pulses are active while "position control" and "pulse ratio 1 (2)" are
turned on.
 Command pulse multiplication (PA1_01 = 0)
Numerator 0 of electronic gear (PA1_06), numerator 1 of electronic gear (PA2_51), numerator 2 of
electronic gear (PA2_52) or numerator 3 of electronic gear (PA2_53) with an input signal can be
selected.
 Position control
The following signals are enabled in the position control mode.

Zero deviation
The difference between the command position (pulse input) and feedback position (present
motor position) is the deviation. The signal is turned on if the present deviation is below a certain
value. You can check that the motor has reached the command position.

Zero speed
The signal is turned on if the feedback speed of the motor (present shaft rotation speed of motor)
is below a certain value.

In-position
Parameter PA1_34 to switch between level output and single-shot output can be used. The level
output is the same as the zero deviation signal, The single-shot output is turned on for a certain
time after the zero deviation signal is turned on.
OFF
OFF ON
About 2ms About 2ms
[S-ON]
[RDY]
Position control
ON
ON
Pulse enable Disable Disable
Input
enable/disable
Pulse ratio 1 ON