D4: Frequency Reference Hold And Up/Down 2 Function - YASKAWA FSDrive-MV1000 Parameter Manual

◆ d4: Frequency Reference Hold and Up/Down 2 Function

■ d4-01: Frequency Reference Hold Function Selection
This parameter is effective when either of the contact input functions listed below is used.
• Accel/decel ramp hold function (H1-
• Up/Down function (H1-
• Up/Down 2 function (H1-
Parameter d4-01 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.
No.
d4-01
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 turned back on again.
• Up/Down 2
The frequency bias is not saved when the Stop command is entered, or longer than 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. The input terminal set for Accel/decel ramp hold (H1-
= A) must be enabled the entire time, or else the hold value will be cleared when the power is switched on.
Figure 2.33
Frequency reference
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
= A)
= 10 and 11)
= 75 and 76)
Name
Frequency Reference Hold Function Selection
Power supply
OFF
ON (closed)
(open)
Forward Run / Stop
ON
OFF (open)
Hold Accel/Decel (closed)
Output frequency
Hold
Figure 2.33 Frequency Reference Hold with Accel/Decel Hold Function
Setting Range
0 or 1
ON (closed)
OFF
(open)
OFF (open)
OFF (open) ON (closed)
Hold
2.4 d: Reference Settings
Default
0
ON (closed)
common_TMonly
ON (closed)
d4-01 = 1
d4-01 = 0
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