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5.4 d: Reference Settings
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
239
5
If an external torque compensation value is input, it is added to the speed limit compensated torque reference value. The
value calculated is limited by the L7-
settings, and is then used as the internal torque reference, which can be
monitored in U1-09. The L7-
settings have highest priority, i.e., the motor cannot be operated with a higher torque
than the L7-
settings, even if the external torque reference value is increased.
■
Setting the Torque Reference, Speed Limit, and Torque Compensation Values
Torque Control Reference Sources
Input values for Torque Control can be set like explained in
.
Table 5.19 Torque Control Input Value Selection
Input Value Polarity
The direction of the input values described above depends on the polarity of the Run command and the input value.
• With a Forward run command and a positive torque reference signal the internal torque reference will be positive, i.e.,
in the forward direction. However, if a Reverse Run command is input, the torque command will be for reverse
rotation.
• With a Forward run command and a negative torque reference signal the internal torque reference will be negative, i.e.,
in the reverse direction. However, if a Reverse Run command is input, the torque command will be for forward
rotation.
When analog inputs are used, negative input values can be generated by
• applying negative voltage input signals.
• using positive analog input signals but setting the analog input bias to negative values so that the input value can be
negative.
• applying positive voltage input signals and using a digital input that is programmed for H1-
= 78.
When MEMOBUS/Modbus communication or a communication option card is used, only positive input values can be
set.
Input Value
<1> Sets analog input terminals A1, A2, and A3 to supply the speed limit, torque reference, or torque compensation. An oPE07 error
(Multi-Function Analog Input Selection Error) will occur if two analog inputs are set for the same function.
Signal Source
Settings
Remarks
Torque Reference
Analog inputs A1/A2/A3
H3-02, H3-10, or H3-06 = 13
Make sure the signal level settings for the input terminal selected
match the signal used. Refer to
H3: Multi-Function Analog Inputs
for details on adjusting analog input signals.
Analog Option Card
• F2-01 = 0
• H3-02, H3-10, or H3-06 = 13
The H3-
settings become effective for the option board input
terminals. Make sure the signal level settings for the input terminal
selected match the signal used. Refer to
for details on adjusting analog input
signals.
MEMOBUS Register 0004H
• b1-01 = 2
• Set Register 000FH, Bit 2 = 1 to enable Torque
reference from register 0004H
–
Communication Option Card
• b1-01 = 3
• F6-06 = 1
Refer to the option card manual for details about
setting the torque reference.
–
Speed Limit
Signal selected as frequency
reference source
d5-03 = 1
The speed limit is taken from the input selected as
frequency reference source in parameter b1-01 or
b1-15.
The settings in C1-
for accel/decel times and in C2-
for
S-curves are applied to the speed limit value.
Parameter d5-04
d5-03 = 2
–
Torque Compensation
Analog inputs A1/A2/A3
H3-02, H3-10, or H3-06 = 14
Make sure the signal level settings for the input terminal selected
match the signal used. Refer to
H3: Multi-Function Analog Inputs
for details on adjusting analog input signals.
Analog Option Card
• F2-01 = 0
• H3-02, H3-10, or H3-06 = 14
The H3-
settings become effective for the option card input
terminals. Make sure the signal level settings for the input terminal
selected match the signal used.
MEMOBUS Register 0005H
• b1-01 = 2
• Set Register 000FH, bit 3 = 1 to enable the torque
compensation setting by register 0005H
–
Communication Option Card
• b1-01 = 3
• Refer to the option card manual for details about
setting the torque compensation value.
–
SIEP_C710636_02B_1_0.book 239 ページ 2015年11月25日 水曜日 午後4時56分