User guide

Configuring the Speed/Voltage Loop
5-7
ANALOG TACH GAIN ADJ
(P.201)
Scales the analog
tachometer feedback
signal after it has
been conditioned by
the drive hardware.
Typically, it will be
1.000.
Parameter Range:
0.750 to 1.250
Default Setting:
1.000
Parameter Type:
Tun abl e
OIM Menu Path(s):
Speed/Voltage Loop (
SPD
)-Speed / Voltage Loop
(
SPD
) Feedback
Important:
Adjust the zero point (
ANALOG TACH ZERO ADJ
(P.202)) before
configuring gain.
ANALOG TACH ZERO ADJ
(P.202)
Removes any offset
from the analog
tachometer feedback
signal.
Parameter Range:
–200 to + 200
Default Setting:
0
Parameter Type:
Tun abl e
OIM Menu Path(s):
Speed/Voltage Loop (
SPD
)-Speed / Voltage Loop
(
SPD
) Feedback
If
ANALOG TACH FEEDBACK
(P.291) is not equal to zero when the drive is stopped,
adjust
ANALOG TACH ZERO ADJ
up or down until
ANALOG TACH FEEDBACK
(P.291) is
equal to zero.
ANLG TACH VOLTS
/1000 (P.203)
Analog tachometer
scaling from the
tachometer
nameplate in volts
per 1000
RPM
.
Parameter Range:*
18.0 to 200.0
VOLTS
/1000
RPM
Default Setting:
18.0
VOLTS
/1000
RPM
Parameter Type:
Configurable
OIM Menu Path(s):
Speed/Voltage Loop (
SPD
) – Speed/Voltage Loop
(
SPD
) Feedback
Units are volts DC for DC tachometers or volts AC
RMS
for AC tachometers.
Use of an AC tachometer requires the AC Tachometer Feedback kit.
Whenever
ANLG TACH VOLTS
/1000 is changed, you should check the positions of
jumpers J11 and J14 to make sure they are set as indicated by J11
ANLG TACH VLT
SCL
(P.792) and J14
ANLG TACH VLT RNG
(P.793). The tachometer wiring might also
need to be changed. See the hardware manual for more information.
*Depending on the setting of
TOP SPEED
(P.011), the high limit might be less than
200.0 to prevent the tachometer voltage from exceeding 250V.