YASKAWA FSDrive-MV1000 - d4: Frequency Reference Hold and Up;Down 2 Function

2.4 d: Reference Settings
144 YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
u d4: Frequency Reference Hold and Up/Down 2 Function
n d4-01: Frequency Reference Hold Function Selection
Determines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when the Stop command
is entered or the power supply is shut down.This parameter is effective when either of the digital input functions listed
below are used:
• Accel/decel ramp hold function (H1- = A)
• Up/Down function (H1- = 10 and 11)
• Up/Down 2 function (H1- = 75 and 76)
The operation depends on the function used with parameter d4-01.
Setting 0: Disabled
• Acceleration hold
The hold value will be reset to 0 Hz when the Stop command is entered or the drive power is switched off. The active
frequency reference will be the value the drive uses when it restarts.
• Up/Down
The frequency reference value will be reset to 0 Hz when the Stop command is entered or the drive power is switched
off. The drive will start from 0 Hz when it is restarted.
• Up/Down 2
The frequency bias is not saved when the Stop command is entered, or 5 s after the Up/Down 2 command has been
released. The Up/Down 2 function will start with a bias of 0% when the drive is restarted.
Setting 1: Enabled
• Acceleration hold
The last hold value will be saved when the Run command or the drive power is switched off. The drive will use the
value that was saved as the frequency reference when it restarts. Make sure to continuously enable the multi-function
input terminal set for “Accel/decel ramp hold” (H1- = A) or the hold value will be cleared when the power is
switched on.
Figure 2. 34
Figure 2.34 Frequency Reference Hold with Accel/Decel Hold Function
No. Name Setting Range Default
d4-01 Frequency Reference Hold Function Selection 0 or 1 0
Power supply
Forward Run / Stop
Hold Accel/Decel
Frequency reference
Output frequency
d4-01 = 1
d4-01 = 0
Hold Hold
OFF
(open)
OFF (open)
OFF
(open)
OFF (open)
ON (closed)
ON (closed)
ON (closed)
ON
(closed)
ON (closed)
OFF (open)
ON (closed)
common_TMonly
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