YASKAWA GA500 Series Programming page 235

Set H1-xx [MFDI Function Selection] to one of these values to enable this parameter:
• A [Accel/Decel Ramp Hold]
• 10/11 [Up/Down Command]
• 75/76 [Up/Down 2 Command]
0 : Disabled
• Acceleration/Deceleration Ramp Hold
When you enter a Stop command or de-energize the drive, the hold value is reset to 0 Hz. The drive will use the
active frequency reference when it restarts.
• Up/Down Command
When you enter a Stop command or de-energize the drive, the frequency reference value is reset to 0 Hz. The drive
will start from 0 Hz when it restarts.
• Up/Down 2 Command
When you enter the Stop command or 5 s after you release the Up/Down 2 command, the drive does not save the
frequency bias. The Up/Down 2 function will start with a bias of 0% when the drive restarts.
1 : Enabled
• Acceleration/Deceleration Ramp Hold
When you clear the Run command or de-energize the drive, it will save the last hold value. The drive will use the
saved value as the frequency reference when it restarts.
Note:
When you energize the drive, continuously enable the MFDI terminal set for Accel/Decel Ramp Hold [H1-xx = A]. If the digital input does
not activate, the drive will clear the hold value and set it to 0 Hz.
Figure 2.51 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.
YASKAWA TOEPYAIGA5002A GA500 Programming
2.5 d: References
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