YASKAWA A1000 Series Technical Manual page 223

Setting 71: Speed/Torque Control switch
Switches the drive between Torque Control and Speed Control. Torque Control is enabled when the terminal is closed,
and Speed Control is enabled when the terminal is open. Note that parameter d5-01 must be set to 0 when using this
function. Refer to d5: Torque Control on page 188
Setting 72: Zero Servo
Used to activate the Zero Servo function that can be used to lock the rotor at a certain position. Refer to
on page 164 for details.
Setting 75, 76: Up 2, Down 2 command
The Up 2 and Down 2 function can be used to add a bias to the frequency reference. The input programmed for 75 will
increase the bias and the input programmed for 76 will decrease it.
works depending on the frequency reference source and parameters d4-01, d5-03, and d4-05.
Reference Hold and Up/Down 2 Function on page 183
parameters.
Note: 1. The Up 2 and Down 2 functions must be set as a pair.
2. When using the Up 2 and Down 2, set appropriate bias limit values to parameters d4-08 and d4-09.
Condition Freq. Ref. Source
1
2
Multi-Step Speed
Reference
3
4
Multi-Step Speed
other than
Reference
5
6
Other
(analog comm., etc.)
7
8
9
Other
(analog comm, etc.)
Value other
10
Setting 77: ASR gain switch
Switches the ASR gain between the values set to C5-01 and C5-03. The gain set to C5-03 is enabled when the terminal is
closed, and C5-01 is enabled when the terminal opens again. See
1, 2 / ASR Integral Time 1, 2 on page 173
Setting 78: External torque reference polarity inversion
Reverses the direction of the torque reference when the terminal closes. Refer to
Setting the Torque Reference, Speed Limit, and Torque Compensation Values on page 188
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
and
Table 5.37 Up/Down 2 Operations
d4-03 d4-05 d4-01
0 • Accelerates (increases the bias) while the Up 2 terminal is closed.
• Decelerates (decreases the bias) while Down 2 is closed.
• Holds output frequency (holds the bias) when no Up 2 or Down 2
0
input or both active.
1
• Resets the bias when the reference changes.
0
• Operates with the frequency reference in all other situations.
• Accelerates (increases the bias) while the Up 2 terminal is closed.
1 -- • Decelerates (decreases the bias) while Down 2 is closed.
• Otherwise operates at the frequency reference.
0 • When the Up 2 is enabled, drive accelerates up to the frequency
reference plus d4-03 (bias is increased for d4-03).
• When Down 2 is enabled, drive decelerates down to the
Value
frequency reference minus d4-03 (bias is decreased for d4-03).
--
• Holds output frequency (holds the bias) when no Up 2 or Down 2
1
0
input or both active.
• Resets the bias when the reference changes.
• Operates with the frequency reference in all other situations.
0 • Accelerates (increases the bias) while the Up 2 terminal is closed.
• Decelerates (decreases the bias) while Down 2 is closed.
• Holds output frequency (holds the bias) when no Up 2 or Down 2
0 0 input or both active.
1
• If the frequency reference changes for more than d4-07 during
accel/decel, bias value is held until the output frequency meets
the reference (speed agree).
• Accelerates (increases the bias) while the Up 2 terminal is closed.
0 1 -- • Decelerates (decreases the bias) while Down 2 is closed.
• Otherwise operates at the frequency reference
0 • When Up 2 is enabled, drive accelerates up to the frequency
reference plus d4-03 (increases the bias for d4-03).
• When Down 2 is enabled, drive decelerates down to the
-- frequency reference minus d4-03 (decreases the bias for d4-03).
than 0
1
• If the frequency reference changes for more then d4-07 during
accel/decel, bias value is held until the output frequency meets
the reference (speed agree).
for a more detailed description.
Switching Between Torque and Speed Control on page
Table 5.37 explains how the Up/Down 2 function
for detailed explanations of these and other Up/Down 2 related
Operation
C5-01, C5-03 / C5-02, C5-04: ASR Proportional Gain
d5: Torque Control on page 188
5.7 H: Terminal Functions
190.
b9: Zero Servo
Refer to d4: Frequency
Frequency Saved
Not saved
If the bias and frequency reference are
constant for 5 s, the bias is added to the
active frequency reference and reset
afterwards.
Not saved
Not saved
If the bias and frequency reference are
constant for 5 s, the bias is added to the
active frequency reference and reset
afterwards.
Not saved
If the bias is constant for 5 s, it is saved to
parameter d4-06. The frequency reference
cannot be overwritten, so only the bias is
saved.
Not saved
Not saved
If the bias is constant for 5 s, it is saved to
parameter d4-06. The frequency reference
cannot be overwritten, so only the bias is
saved.
and
for details.
5
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