Pulse Count Factored By 4 - YASKAWA VARISPEED-616G5 Instruction Manual

Advanced Operation
7.3.2 Zero-servo Function
7
For example, when a 600 p/r encoder is being used, the number of pulses would be 2,400 p/r after multi-
plying by four.
The Zero Servo End signal will go OFF when the zero servo command is turned OFF.
D
Do not lock the servo for extended periods of time at 100% when using the zero servo function. Ex-
D
tended periods of servo lock can be achieved by ensuring that the current during the servolock is 50%
or less or by increasing the Inverter capacity.
1 pulse
Phase A
Phase B
Count 1 2 3 4
Fig 7.9

Pulse Count Factored by 4

5 6 7 8 9 10 11 12
7 - 20
Factor of 4: By counting the rising and
falling edges of phase A
this method has four times
the resolution of the PG.