Mitsubishi Electric FR-A7AL Instruction Manual page 63

"Setting example 2"
Find the command pulse frequency which sets the motor speed No = 3000 (r/min).
Note that the command pulse scaling factor Pr. 420/Pr. 421 = "1".
When the SF-V5RU motor is used
Number of feed back pulses is Pf = 8192 (pulse/rev)
fo = 8192
= 8192
Therefore the command pulse is 409.6 (kpps).
CAUTION
If the pulse train input is open collector, command pulse frequency is max. 200kpps.
Therefore, the command pulse frequency should be set to 200kpps using command pulse scaling factor of Pr. 420/
Pr. 421.
No Pr. 421
× ×
60
Pr. 420
3000 1
× ×
60
1
POSITION CONTROL FUNCTION
3
=
× 10
409.6
6
57