YASKAWA Varispeed G7 Series Instruction Manual page 381

Multi-function Contact Input Functions (H1-01 to H1-10)
Set-
ting
Value
72 Zero-servo command (ON: Zero-servo)
Multi-function Contact Output Functions (H2-01 to H2-05)
Set-
ting
Value
Zero-servo end
33
ON: Current position is within zero-servo start position ± the zero-servo end width.
To output the zero-servo status externally, assign the Zero-servo End signal (setting 33) to one of the multi-
function outputs (H2-01 to H2-05).
Monitor Function
Con-
stant
Number
U1-35
Time Chart
A time chart for the zero-servo function is given in Time Chart for Zero-servo.
-148
6
Name
Description
Display
Zero-servo
movement
Shows the number of PG pulses
pulses
times 4 for the movement range
when stopped at zero.
Zero Servo
Pulse
Run Command
Zero servo command
Frequency (speed) reference
Excitation level
b2-01
Motor speed
Zero Servo End signal
Fig 6.83 Time Chart for Zero-servo
Function
Function
Output Signal
Level During
Multi-Function
Analog Output
(Cannot be out-
put.)
ON
ON
Zero-servo status
Control Methods
Open
V/f Loop
V/f with Vec-
PG
tor
1
No No No
Control Methods
Open
V/f Loop
V/f with Vec-
PG tor
1
No No No
Control Methods
Min.
Open
V/f Flux
Loop
Unit
V/f with Vec-
Vector
PG tor
1
1 No No No A
OFF
OFF
Open
Flux Loop
Vec- Vec-
tor tor
2
Yes No
Open
Flux Loop
Vec- Vec-
tor tor
2
Yes No
MEMO
Open
BUS
Loop
Reg-
Vector
ister
2
No 62H