Hitachi WJ Series User Manual page 205

Chapter 9
■ When "Torque limit selection [b040]" = "4 quadrant individual setting (00)"
 This mode is used to set the torque limit values at the four quadrants - forward power, forward
regenerative, reverse power, and reverse regenerative - individually with "Torque limit 1 to 4
([b041] to [b044])". The relationship between the four quadrants and torque limit values is
shown in the figure below.
■ When "Torque limit selection [b040]" = "Switched by terminal [TRQ1]/[TRQ2] (01)"
 As shown in the figure below, parameter settings selected from "Torque limit 1 to 4 ([b041] to
[b044])" based on the combination of the "Torque limit selection bit 1 [TRQ1](41)" and " Torque
limit selection bit 2 [TRQ2](42)" input terminal functions are set as the torque limit value in all
operating conditions.
Example of input terminal
7
[TRQ1]
■ When "Torque limit selection [b040]" = "[Ai1] terminal input (02)"
 The torque limit value is specified by the voltage applied to the [Ai1] terminal (analog voltage) of
the control terminal. A voltage input of 0 to 10 V corresponds to a torque limit value of 0 to
200%. The torque limit value entered is applied as the torque limit value for all operating
conditions.
 When specifying a torque limit value with an analog voltage input, avoid setting other command
(such as frequency command) inputs to analog inputs.
■ When the "Torque limit selection [b040]" = "Option (03)"
 This setting is used to specify the torque limit value from the option board. For details, refer to
the instruction manual of the option board.
Regenerative
[b042]
Reverse
rotation
Powered
[b043]
assignment
6
L
[TRQ2]
Torque
Powered
[b041]
Regenerative
[b044]
[TRQ1] [TRQ2]
OFF OFF
ON OFF
OFF ON
ON ON
9-6-3
Inverter Functions
Forward
rotation
Torque limit value
[b041]
[b042]
[b043]
[b044]