Parameter Details
12
12.8 H: Terminal Function Selection
YASKAWA SIEPC71061753C GA500 Technical Manual 643
When you activate the terminal set for Up2 Command, the bias will increase. When you activate the terminal set
for Down 2 Command, the bias will decrease. When you activate or deactivate the two commands, the drive will
hold the frequency reference. Table 12.59 gives information about the relation between operation of the Up/Down
2 Command and d4-01, d4-03, and 4-05.
Note:
• When you use this function, set the optimal bias limit values with d4-08 and d4-09 [Up/Down 2 Bias Upper Limit/Lower Limit].
• Refer to d4: Frequency Ref Up/Down & Hold on page 574 for more information.
Table 12.59 Up 2 Command, Down 2 Command
Func
tion
Frequency
Reference Source
d4-03 d4-05 d4-01 Operation
Storing the Frequency Reference or
Frequency Bias
1
Multi-step speed
reference
0.00
0
0
• When the Up 2 Command is active, the drive
accelerates the motor (increases the bias value).
• When the Down 2 Command is active, the
drive decelerates the motor (decreases the bias
value)
• When the Up 2 Command and Down 2
Command are active or not active, the drive
holds the output frequency. (holds the bias
value).
• When the frequency changes, it will reset the
bias.
• For all other statuses, the drive will follow the
frequency reference.
Not stored.
2 1
When the bias value and frequency reference are
constant for 5 seconds after the frequency
reference hold starts, the drive will add the bias
value to the enabled frequency reference, then
reset.
3 1 -
• When the Up 2 Command is active, the drive
accelerates the motor.
• When the Down 2 Command is active, the
drive decelerates the motor.
• For all other statuses, the drive will follow the
frequency reference.
Not stored.
4
Multi-step speed
reference
> 0 -
0
• When the Up 2 Command is active, the drive
accelerates the motor to “Frequency Reference
+ d4-03” (the bias value will increase to the
value set in d4-03)
• When the Down 2 Command is active, the
drive decelerates the motor to “Frequency
Reference - d4-03” (the bias value will decrease
to the value set in d4-03).
• When the Up 2 Command and Down 2
Command are active or not active, the drive
holds the output frequency. (holds the bias
value).
• When the frequency changes, it will reset the
bias.
• For all other statuses, the drive will follow the
frequency reference.
Not stored.
5 1
When the bias value and frequency reference are
constant for 5 seconds after the frequency
reference hold starts, the drive will add the bias
value to the enabled frequency reference, then
reset.
6
Others
(Analog input,
transmission)
0 0
0
• When the Up 2 Command is active, the drive
accelerates the motor (increases the bias value).
• When the Down 2 Command is active, the
drive decelerates the motor (decreases the bias
value)
• When the Up 2 Command and Down 2
Command are active or not active, the drive
holds the output frequency (holds the bias
value).
• During acceleration or deceleration, when the
frequency reference increases or decreases
more than d4-07, the drive holds the bias value
until the output frequency and the actual
frequency reference agree (speed agreement).
Not stored.
7 1
When the bias value is constant for 5 seconds after
the frequency reference hold starts, the drive will
store the bias value in d4-06. You cannot rewrite
the frequency reference is not possible. The drive
will store only the bias value.
8
Others
(Analog input,
transmission)
0 1 -
• When the Up 2 Command is active, the drive
accelerates the motor (increases the bias value).
• When the Down 2 Command is active, the
drive decelerates the motor (decreases the bias
value)
• For all other statuses, the drive will follow the
frequency reference.
Not stored.
9
> 0 -
0
• When the Up 2 Command is active, the drive
accelerates the motor to “Frequency Reference
+ d4-03” (the bias value will increase to the
value set in d4-03)
• When the Down 2 Command is active, the
drive decelerates the motor to “Frequency
Reference - d4-03” (the bias value will decrease
to the value set in d4-03).
• During acceleration or deceleration, when the
frequency reference increases or decreases
more than d4-07, the drive holds the bias value
until the output frequency and the actual
frequency reference agree (speed agreement).
Not stored.
10 1
When the bias value is constant for 5 seconds after
the frequency reference hold starts, the drive will
store the bias value in d4-06. You cannot rewrite
the frequency reference is not possible. The drive
will store only the bias value.
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