D2: Frequency Upper/Lower Limits - YASKAWA FSDrive-MV1000 Parameter Manual

◆ d2: Frequency Upper/Lower Limits

By entering upper or lower frequency limits, the user can keep motor speed from going above or below levels that may
cause resonance or equipment damage.
d2-01: Frequency Reference Upper Limit
■
Sets the maximum frequency reference as a percentage of the maximum output frequency (E1-04). This limit applies to
all frequency references.
Even if the frequency reference is set to a higher value, the drive internal frequency reference will not exceed this value.
No.
d2-01 Frequency Reference Upper Limit
d2-02: Frequency Reference Lower Limit
■
Sets the minimum frequency reference as a percentage of the maximum output frequency (E1-04). This limit applies to
all frequency references.
If a lower reference than this value is entered, the drive will run at the limit set in d2-02. If the drive is started with a
lower reference than d2-02, it will accelerate up to d2-02.
No.
d2-02 Frequency Reference Lower Limit
Figure 2.31
d2-03: Master Speed Reference Lower Limit
■
Unlike frequency reference lower limit (d2-02) that affects the all frequency references wherever they are sourced from
(i.e., analog input, preset speed, Jog speed, etc.), the master speed lower limit (d2-03) sets a lower limit that will only
affect a frequency reference entered from the analog input terminals (analog input 1, analog input 2).
Set as a percentage of the maximum output frequency (E1-04).
Note: When lower limits are set in both parameters d2-02 and d2-03, the drive uses the greater of those two values as the lower limit.
No.
d2-03 Master Speed Reference Lower Limit
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Name
0.0 to 110.0%
Name
0.0 to 110.0%
Internal frequency
reference
d2-01
Operating
range
d2-02
Figure 2.31 Frequency Reference: Upper and Lower Limits
Name
0.0 to 110.0%
Setting Range
Setting Range
common_TMonly
Frequency Reference Upper Limit
Frequency Reference Lower Limit
Set frequency reference
Setting Range
2.4 d: Reference Settings
Default
100.0%
Default
0.0%
Default
0.0%
137