Parameter Details
12
12.4 d: REFERENCE
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 603
Table 12.25 The Method for Torque Control Input Signals
Configuration Parameter Signal Input Method Parameter Settings Notes
Torque Reference Drive analog input terminals AI1, AI2,
AI3
H3-02, H3-10, H3-06 = 8 [AI Function
Select= TorqRef/Lim]
*1
The level of the set input signal must align
with the polarity of the external signals.
Analog reference option cards AI-A3 • F2-01 = 0 [An.In Funct.Selection = 3
Independent Channels]
• H3-02, H3-10, and H3-06 = 8
[TorqRef/Lim]
*1
H3-02, H3-10, or H3-06 settings are
enabled for the option card input terminal.
The level of the set input signal must align
with the polarity of the external signals.
Modbus register 0004H • b1-01 = 2 [Freq. Ref. Sel. 1 = Modbus]
• When register bit 2 of 000FH = 1, the
torque reference and torque limit from
register 0004H is enabled.
-
Communication option card • b1-01 = 3 [Option PCB]
• F6-06 = 1 [Trq Ref/Lim Comms =
Enabled]
Refer to the communication option card
manual for more information about the
torque reference setting.
-
Speed Limit Frequency Reference Selection
(Reference source selected with b1-01)
d5-03 = 1 [Speed Limit Selection = Active
Freq Reference]
The drive gets the speed limit from the
frequency reference source input in b1-01
or b1-15 [Freq. Ref. Sel. 2].
*1
The drive applies the settings in C1-01 to
C1-08 [Accel Time 1 to Decel Time 4] and
C2-01 to C2-04 [Jerk@Start of Accel,
Jerk@End of Accel, Jerk@Start of Decel,
Jerk@End of Decel] to the speed limit.
d5-04 [Speed Limit] d5-03 = 2 [d5-04 Setting]
-
Torque Compensation Drive analog input terminals AI1, AI2,
AI3
H3-02, H3-10, or H3-06 = 7
[TorqCompensation]
*1
The level of the set input signal must align
with the polarity of the external signals.
Analog reference option cards AI-A3 • F2-01 = 0
• H3-02, H3-10, or H3-06 = 7
*1
H3-02, H3-10, or H3-06 settings are
enabled for the option card input terminal.
The level of the set input signal must align
with the polarity of the external signals.
Modbus register 0005H • b1-01 = 2
• When register bit 3 of 000FH = 1, the
torque reference and torque limit from
register 0005H is enabled.
-
Communication option card b1-01 = 3
Refer to the communication option card
manual for more information about the
torque reference setting.
-
*1 Sets analog input terminals AI1, AI2, and AI3 to supply the speed limit, torque reference, or torque compensation. If you set the
same function to AI1 to AI3 terminals with H3-02, H3-10, or H3-06, the drive will detect oPE07 [Analog Input Selection Error].
Input Signal Polarity
The positive and negative torque references set the motor rotation direction. The direction of the Run command
does not set it. The positive and negative torque reference signals and the direction of the Run command have an
effect on the internal torque reference.
Table 12.26 Torque Control Signal Polarity
Run Command Direction Torque Reference Signal Polarity Direction of Motor Rotation
Polarity of the Internal Torque
Reference [U1-09]
Forward run + (Positive) Forward direction + (Positive)
- (Negative) Reverse direction - (Negative)
Reverse run + (Positive) Reverse direction - (Negative)
- (Negative) Forward direction + (Positive)
Note:
For Yaskawa motors, the forward run direction is counterclockwise direction when seen from the load shaft.
When you use analog inputs, you can get negative input values with these methods:
• Apply negative voltage input signals.
• Use positive voltage input signals and set the analog input bias to negative values.
• Apply positive voltage input signals and use a digital input programmed for AI Trq Polarity [H1-xx = 14].
When you use Modbus communication or a communication option card, set the positive or negative signed torque
reference.
When the level of the analog signal input is 0 V to 10 Vor 4 mA to 20 mA, the torque reference is the forward
direction. To reverse the polarity of the torque reference, use one of these two methods:
• Use a -10 V to +10 V voltage input
• Set H1-xx = 14 [DI Function Select = AI Trq Polarity].
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