SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
4.3.4 Torque biasing function<br />
The torque biasing function allows you to make the inverter bias the<br />
torque command generated during the operation in speed control mode.<br />
You can effectively use this function for inverter applications to a lift or<br />
other elevating machines.<br />
Item Function code Data or range of data Description<br />
00 None<br />
Torque biasing mode<br />
P036<br />
01 Bias setting from the digital operator<br />
selection<br />
02 Bias setting via the O2 terminal (*1)<br />
-200 to +200 (%)<br />
Torque bias setting<br />
P037<br />
Valid when "P036" = "01"<br />
(*3)<br />
Torque biasing polarity<br />
00 Depending on the sign of bias value<br />
P038<br />
selection (*2)<br />
01 Depending on the motor rotation direction<br />
*1 When the torque bias is set as a signal input via the O2 terminal, the inverter recognizes the signal<br />
voltage -10 to +10 (V) as the bias value -200 to +200 (%).<br />
*2 1) When "00" (depending on the sign of the bias value) is specified:<br />
Regardless of the direction of motor rotation, torque in the forward direction increases when the<br />
torque bias signal indicates a positive (+) value. Torque in the reverse direction increases when<br />
the torque bias signal indicates a negative (-) value.<br />
2) When "01" (depending on the motor rotation direction) is specified:<br />
The sign of the bias value indicated by the torque bias signal and the direction of the torque<br />
biasing change according to the rotation direction specified by the operation command.<br />
With a forward operation command: the torque is generated in the same direction as that specified<br />
by the sign of the torque bias value.<br />
With a reverse operation command: the torque is generated in the opposite direction to that<br />
specified by the sign of the torque bias value.<br />
*3 :applied for 75 to 150kW<br />
4.3.5 Torque control function<br />
The torque control function is effective in the V2 control mode.<br />
You can use the inverter not only under the speed control or<br />
pulse train position control but also with this torque control<br />
function. You can use this function effectively for inverter<br />
applications to, for example, a winding machine.<br />
To operate the inverter to drive the motor under torque control,<br />
assign function "52" (ATR) to an intelligent input terminal. The<br />
torque command input is enabled when the ATR terminal is on.<br />
You can select one of four torque command input methods<br />
(digital operator and three analog input terminals) by the torque<br />
command input selection (P034).<br />
Item Function code Data or range of data Description<br />
00 Input from the O terminal<br />
Torque command input<br />
01 Input from the OI terminal<br />
P033<br />
selection<br />
02 Input from the O2 terminal<br />
03 Input from the digital operator<br />
Torque command setting<br />
Polarity selection at the torque<br />
command input via the O2<br />
terminal<br />
Speed limit for<br />
torque-controlled operation<br />
(forward rotation)<br />
Speed limit for<br />
torque-controlled operation<br />
(reverse rotation)<br />
P034<br />
P035<br />
P039<br />
P040<br />
0 to 200 (%)<br />
<br />
4 - 99<br />
Torque setting for the input from the digital<br />
operator (P033 = 03)<br />
00 Depending on the sign of torque value<br />
01 Depending on the motor rotation direction<br />
0.00 to 99.99 or 100.0 to<br />
400.0 (Hz)<br />
0.00 to 99.99 or 100.0 to<br />
400.0 (Hz)<br />
Related code<br />
P036: Torque biasing mode selection<br />
P037: Torque bias setting<br />
P038: Torque biasing polarity selection<br />
d010: Torque bias monitoring<br />
Related code<br />
P033: Torque command input selection<br />
P034: Torque command setting<br />
P035: Polarity selection at the torque<br />
command input via the O2 terminal<br />
P039: Speed limit for torque-controlled<br />
operation (forward rotation)<br />
P040: Speed limit for torque-controlled<br />
operation (reverse rotation)<br />
d009/d010/d012: Torque command monitoring<br />
P036: Torque biasing mode selection<br />
P037: Torque bias setting<br />
P038: Torque biasing polarity selection<br />
d010: Torque bias monitoring<br />
C001 to C008: Terminal [1] to [8] functions<br />
00 None<br />
Torque biasing mode selection P036<br />
01 Bias setting from the digital operator<br />
02 Bias setting via the O2 terminal<br />
Torque bias setting P037 -200 to +200 (%) Valid when "P036" = "01"<br />
Torque biasing polarity<br />
00 Depending on the sign of bias value<br />
P038<br />
selection<br />
01 Depending on the motor rotation direction<br />
Terminal function C001 to C008 52 ATR: Permission for torque command input<br />
*1 :applied for 75 to 150kW