Hitachi SJ7002 Series Instruction Manual page 196

Force Terminal
Mode
Opt. Code
[F–TM]
Symbol
Valid for
[1] to [8]
Inputs
Required
A001, A002
Settings
Default
Requires
terminal config.
Torque Control
Enable
Opt. Code
[ATR]
Symbol
Valid for
[1] to [8]
Inputs
A044 = 05,
P033, P034,
Required
P035, P039,
Settings
P040, P036,
P037, P038
Monitor
D009, D010,
Settings
Default
Requires
config.
terminal
Clearwater Tech - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.clrwtr.com - Email: info@clrwtr.com
The purpose of this intelligent input is to allow a device to force the inverter to allow control of
the following two parameters via the control terminals:
• A001 - Frequency source setting (01 = control terminals [FW] and [RV])
51
• A002 - Run command source setting (01 = control terminals [O] or [OI])
Some applications will require one or both settings above to use a source other than the
terminals. You may prefer to normally use the inverter's keypad and potentiometer, or to use the
ModBus network for control, for example. However, an external device can turn ON the
[F-TM] input to force the inverter to (temporarily) allow control (frequency source and Run
command) via control terminals. When the [F-TM] input is OFF, then the inverter uses the
regular sources specified by A001 and A002 again.
When changing the [F-TM] state during Run Mode (inverter is driving the motor), the inverter
will stop the motor before the new [F-TM] state takes effect.
The torque control enable function is available in the vector control with encoder feedback
mode (A044 = 05). You can use the inverter not only in speed control or pulse train position
control but also with the torque control function. Suitable applications include material winding
machines.
52
The torque command input is enabled when the [ATR] intelligent input (assigned with option
code 52) is ON. You can select one of four torque command input methods (digital operator
and three analog input terminals) by the torque command input selection.
Code
P033 Torque command input
selection
D012
P034 Torque command setting
P035 Torque command polarity
select
P039 Forward speed limit for
torque-control mode
P040 Reverse speed limit for
torque-control mode
P036 Torque bias mode
P037 Torque bias value
P038 Torque bias polarity
Function Data or Range
00
01
02
03
0. to 200. (%)
00
01
0.00 to maximum
frequency (Hz)
0.00 to maximum
frequency (Hz)
00
01
02
-200. to 200. (%)
00
01
SJ700 Inverter
2
Description
[O] terminal
[OI] terminal
[O2] terminal
Inverter keypad (P034)
Torque setting for the input from
the digital operator (P033 = 03)
Indicated by signal polarity at
[O2] terminal
Depends on motor direction
—
—
Disable
Inverter keypad (P037)
[O2] terminal input
Indicated by polarity
Depends on motor direction
4–35