Hitachi SJ Series, User Manual

Page: 295 / 786

12-11-8
Chapter 12 Inverter Functions
3. Terminal switch mode
• Set values of torque limits 1 to 4 ([bA112] to
[bA115]) in all operation states are enabled by the
combination of torque limit switch terminals 1 and 2
(TRQ1, TRQ2) set to the input terminal.
• When torque limit selection [bA110] = 07
(parameter setting) or torque limit mode selection
[bA111] = 01 ([TRQ] terminal switch) is selected,
torque limit 1 to 4 that can be switched by switching
the torque limit switch 1/2 assigned to the input
terminal will be set as shown in the figure on the
right.
Maintain acceleration/deceleration command of
speed control when torque control is switched
• If torque pulsation occurs at the time of canceling
after torque limit operation, enabling [bA116] torque
LAD stop selection may be effective.
Parameter
Input terminal function [CA-01] to [CA-11]
Output terminal [CC-01] to [CC-07]
(e.g.) When the 061 [TRQ1] torque limit switch 1 is
assigned to the input terminal 7 and the 062
[TRQ2] torque limit switch 2 to the input terminal 8
Item Parameter Data Description
Torque limit
selection
[bA110]
00~11
00 (Disable/01)/01 (Ai1 terminal input)/
02 (Ai2 terminal input)/03 (Ai3 terminal input)/
04 (Ai4 terminal input)/05 (Ai5 terminal input)/
06 (Ai6 terminal input)/07 (Parameter setting)/
08 (RS 485)/09 (Option 1)/
10 (Option 2)/11 (Option 3)
Torque limit
parameter mode
selection
[bA111]
00
Four Quadrant specific
01 [TRQ] terminal switch
Torque limit 1
Torque limit 2
Torque limit 3
Torque limit 4 [bA112]
[bA113]
[bA114]
[bA115]
0.0~500.00(%)
The torque limit function will operate when
output torque exceeds this set value.
Torque LAD
stop selection
[bA116]
00 Disable
01
Enable: retains frequency information
when the torque limit is switched. (at the
time of deceleration operation)
Item
Terminal
name
Data Description
Enable/disable torque
limit [TL] 060 Switches enable/disable of the torque limit function.
Torque limit switch 1 [TRQ1] 061 Is the torque limit command switch terminal 1.
Torque limit switch 2 [TRQ2] 062 Is the torque limit command switch terminal 2.
Item
Terminal
name
Data Description
Under torque limit [TRQ] 022 Signal turns ON when the torque limit function is
enabled.
A
OFF OFF [bA112]
ON OFF [bA113]
OFF ON [bA115]
ON ON [bA114]
TRQ2
T
RQ1 COM
Input terminal function
7 8