Filter
Top Products
47
Biases and gains of speed setting termi-
nals (Pr. 902 to Pr. 905, Pr. 917 to Pr. 920)
4.7
Biases and gains of speed setting terminals
(Pr. 902 to Pr. 905, Pr. 917 to Pr. 920)
<Setting>
There are the following three methods to adjust the speed setting voltage bias and gain.
1) Method to adjust any point by application of a voltage to across terminals 2(1)(3) - 5
2) Method to adjust any point without application of a voltage to across terminals 2(1)(3) - 5
3) Method that does not adjust the bias voltage
(Example) Pr. 903 "speed setting No. 2 gain"
(Pr. 902 to Pr. 920 can be adjusted in the similar manner.)
<Adjustment procedure> Using the speed setting signal from the operation panel (FR-DU04
-1
) to make speed setting
Adjust the biases and gains of the speed setting No. 2, torque command No. 3 and multi-function No. 1
terminals.
The "bias" and "gain" functions are designed to adjust the relationship between the 0 to 10V input signal,
which is externally input for the setting of output speed, torque or magnetic flux.
Parameter Name Factory Setting Setting Range Remarks
902 Speed setting No. 2 bias 0V 0r/min 0 to 10V 0 to 3600r/min
Extended mode
903 Speed setting No. 2 gain 10V 1500r/min 0 to 10V 0 to 3600r/min
904
Torque command No. 3
bias
0V 0% 0 to 10V 0 to 400%
905
Torque command No. 3
gain
10V 150% 0 to 10V 0 to 400%
917
No. 1 terminal bias
(speed)
0V 0r/min 0 to 10V 0 to 3600r/min
918
No. 1 terminal gain
(speed)
10V 1500r/min 0 to 10V 0 to 3600r/min
919
No. 1 terminal bias
(torque/magnetic flux)
0V 0% 0 to 10V 0 to 400%
920
No. 1 terminal gain
(torque/magnetic flux)
10V 150% 0 to 10V 0 to 400%
CAUTION
Torque command bias and gain can not be set by applying an external negative setting signal to the
torque command No. 3 or No. 1 terminal.
(1) Power on (monitoring mode) (2) Choose the PU operation mode.
1) Make sure that the inverter is in the PU operation
mode. (LED of PU is lit.) (Refer to page 28 for mon-
itor transition.)
j
Pr. 902
Pr. 903
0
Setting signal
10V
Factory setting
Gain
Bias
Output speed
(r/min)
(1500r/min)
Pr. 905
Pr. 904
Setting signal
10V
-10V
(150%)
Inclination is as set in
Pr. 904 (Pr. 917, Pr. 919)
and Pr. 905 (Pr. 918, Pr. 920).
Bias
Pr. 917
Pr. 918
Output speed
(r/min)
Torque
(%)
Gain
Pr. 919
Pr. 920
(1500r/min)
FR-DU04
-1
CONTROL PANEL
Hz/r
MON EXT PU
A
V
REV FWD
REMARKS
ON of the LED is indicated by , and OFF by .
Operation mode (PU operation mode)
FR-DU04
-1
CONTROL PANEL
Hz/r
MON EXT PU
A
V
REV FWD