1.4 d: Reference Settings
98 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
■ d2-02: Frequency Reference Lower Limit
Sets the minimum frequency reference as a percentage of the maximum output frequency.
This limit applies to all frequency references.
If a lower reference than this value is input, the drive will run at the d2-02 level. If the drive
is started with a lower reference than d2-02, it will accelerate up to d2-02.
Figure 1.33
Figure 1.33 Frequency Reference: Upper and Lower Limits
■ d2-03: Master Speed Reference Lower Limit
Unlike frequency reference lower limit (d2-02) which will affect the frequency reference no
matter where it is 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 the analog input (terminals
A1 and A2) that is the active master speed frequency.
Set as a percentage of the maximum output frequency.
Note: The lower limits for the Jog frequency, multi-step speed settings, and 2-step speed settings do
not change. When lower limits are set to both the frequency reference (d2-02) and the main
frequency reference (d2-03), the drive uses the greater of those two values as the lower limit.
No. Parameter Name Setting Range Default
d2-01 Frequency Reference Upper Limit 0.0 to 110.0% 100.0%
No. Parameter Name Setting Range Default
d2-02 Frequency Reference Lower Limit 0.0 to 110.0% 0.0%
No. Parameter Name Setting Range Default
d2-03 Master Speed Reference Lower Limit 0.0 to 110.0% 0.0%
Internal frequence
reference
d2-01
Operating
range
Frequency Reference Upper Limit
Set frequency reference
Frequency Reference Lower Limit
d2-02
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