YASKAWA A1000 Series Technical Manual page 189

Input Value Signal Source
Signal selected as frequency
reference source
Speed Limit
Parameter d5-04
Analog inputs A1/A2/A3
Analog Option Card
Torque Compensation
MEMOBUS Register 0005h
Communication Option Card
<1> Sets analog input terminals A1, A2, and A3 to supply the speed limit, torque reference, or torque compensation. An oPE error will occur if two
analog inputs are set for the same function.
Input Value Polarity
The direction of the input values described above depends on the polarity of the Run command and the input value.
Run Command Direction
Forward
Reverse
Example:
• With a Forward run command and a positive torque reference signal the internal torque reference will be positive, i.e.,
in the forward direction.
• With a Forward run command and a negative torque reference signal the internal torque reference will be negative, i.e.,
in the reverse direction.
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.
When MEMOBUS communication or a communication option card is used, only positive input values can be set.
Independent of its input source, the polarity of the torque reference signal can be inverted using a digital input that is
programmed for H1-
communication option card.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
d5-03 = 1
The speed limit is taken from the input selected as
frequency reference source in parameter b1-01 or b1-
15.
<1>
d5-03 = 2
H3-02, H3-06, or H3-10 = 14
• F2-01 = 0
• H3-02, H3-06, or H3-10 = 14
Set Register 000Fh, bit 3 = 1 to enable the torque
reference setting by register 0005h
F6-06 = 1
Refer to the option card manual for details about
setting the torque compensation value.
Table 5.19 Torque Control Signal Polarity
= 78. Use this function to input negative torque reference values when using MEMOBUS or a
Settings
The settings in C1-
curves are applied to the speed limit value.
Make sure the signal level settings for the input terminal selected
match the signal used. Refer to
<1>
on page 234
The H3-
terminals. Make sure the signal level settings for the input terminal
<1>
selected match the signal used.
Input Value Polarity
+ (positive)
- (negative)
+ (positive)
- (negative)
5.4 d: Reference Settings
Remarks
for accel/decel times and in C2-
–
H3: Multi-Function Analog Inputs
for details on adjusting analog input signals.
settings become effective for the option card input
–
–
Input Value Direction
Forward direction
Reverse direction
Reverse direction
Forward direction
for S-
5
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