Hitachi SJ Series User Manual page 295

Chapter 12
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
A
• If torque pulsation occurs at the time of canceling
after torque limit operation, enabling [bA116] torque
LAD stop selection may be effective.
Parameter
Item Parameter
Torque limit
selection
Torque limit
parameter mode
selection
Torque limit 1
Torque limit 2
Torque limit 3
Torque limit 4
Torque LAD
stop selection
Input terminal function [CA-01] to [CA-11]
Item
Enable/disable torque
limit
Torque limit switch 1
Torque limit switch 2
Output terminal [CC-01] to [CC-07]
Item
Under torque limit
Data
[bA110]
00~11
[bA111]
[bA112]
[bA113]
0.0~500.00(%)
[bA114]
[bA115]
[bA116]
Terminal
Data
name
[TL] 060
[TRQ1] 061
[TRQ2] 062
Terminal
Data
name
[TRQ] 022
(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
Input terminal function
7
T
RQ1
OFF
ON
OFF
ON
Description
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)
00
Four Quadrant specific
01
[TRQ] terminal switch
The torque limit function will operate when
output torque exceeds this set value.
00 Disable
Enable: retains frequency information
01 when the torque limit is switched. (at the
time of deceleration operation)
Description
Switches enable/disable of the torque limit function.
Is the torque limit command switch terminal 1.
Is the torque limit command switch terminal 2.
Description
Signal turns ON when the torque limit function is
enabled.
12-11-8
Inverter Functions
8
TRQ2
COM
OFF [bA112]
OFF [bA113]
ON [bA115]
ON [bA114]