Omron Q2A Series Technical Manual page 597

Figure 12.57 Frequency Reference Hold with Accel/Decel Hold Function
• Up/Down Command
When you clear the Run command or de-energize the drive, it will save the frequency reference value. The drive
will use the saved value as the frequency reference when it restarts.
• Up/Down 2 Command with Frequency Reference from Keypad
When a Run command is active and you release the Up/Down 2 command for longer than 5 s, the drive adds the
Up/Down 2 bias value to the frequency reference and sets it to 0. The drive saves the frequency reference value
to which the bias value was added. The drive will use the new value as the frequency reference when it restarts.
Figure 12.58 Up/Down 2 Example with Reference from Keypad and d4-01 = 1
• Up/Down 2 Command with Frequency Reference from Input Sources Other Than the Keypad
When a Run command is active and you release the Up/Down 2 command for longer than 5 s, the drive will
save the bias value in d4-06 [FRef Bias(Up/Dw2)]. The drive saves the frequency reference + d4-06 as a
frequency reference value. The drive will use the new value as the frequency reference when it restarts.
Figure 12.59 Up/Down 2 Example with Other Reference than Keypad and d4-01 = 1
Note:
Set the Up/Down 2 upper limit [d4-08] and lower limit [d4-09] correctly to use the frequency reference hold function and the Up/Down
2 function.
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
12.4 d: REFERENCE
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