Omron VARISPEED F7 User Manual page 120

Zero Servo Control: b9
Param-
Name
eter
Description
Num-
Display
ber
Zero Servo Adjust the strength of the
Gain zero-servo lock.
Enabled when the "zero-servo
command" is set for a multi-
function input. When the zero-
servo command has been
input and the frequency refer-
b9-01
ence drops below DC Injec-
Zero Servo
tion level (b2-01), a position
Gain
control loop is created and the
motor stops. Increasing the
zero-servo gain increases the
strength of the lock but might
cause oscillations.
Zero-Servo Sets the bandwidth of the Zero
completion Servo completion output.
bandwidth Enabled when the "zero-servo
completion (end)" is set for a
multi-function output. The
zero-servo completion signal
b9-02 is ON when the current posi-
tion is within the range (the
Zero Servo
zero-servo position + zero-
Count
servo completion width.)
Set b9-02 to 4 times of the
allowable displacement pulse
amount at the PG.
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to 100 5 No No
0 to
10 No No
16383
Control Methods
MEMO-
V/f Open Closed
BUS
with Loop Loop
Register
PG Vector Vector
No No A 1DAH
No No A 1DBH
Page
6-129
6-129
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