Basic Programming 5 - 15
Fig 5.12 Acceleration/deceleration Time Switching Frequency
Speed Command Limits
d2-01 Frequency Reference Upper Limit
d2-02 Frequency Reference Lower Limit
The use of parameters d2-01 and d2-02 places limitations on the speed command that the Drive accepts. The parameters are
set in units of percentage of the maximum frequency (E1-04) of the Drive and cause dead bands on any remote speed com-
mand input. By setting upper or lower frequency limits, the Drive programmer can prevent operation of the Drive in certain
ranges that may cause resonance, equipment damage, or both.
Fig 5.13 Frequency Reference Upper and Lower Limit Characteristics
Parameter d2-01 can be set above 100%, however only in the “Hand” mode will the Drive operate above the maximum
frequency.
Input Voltage Setting
E1-01 Input Voltage Setting
Set the Input Voltage parameter (E1-01) to the nominal voltage of the connected AC power supply. This parameter adjusts the
levels of some protective features of the Drive (e.g. Overvoltage, Stall Prevention, etc.). E1-01 also serves as the
Maximum/Base Voltage used by the Preset V/Hz curves (E1-03=0 to E).
Acceleration/
deceleration
time switching
frequency (C1-11)
C1-03 rate C1-01 rate C1-02 rate C1-04 rate
When output frequency ≥ C1-11, acceleration and deceleration are performed using
Acceleration/deceleration Time 1 (C1-01, C1-02).
When output frequency < C1-11, acceleration and deceleration are performed using
Acceleration/deceleration Time 2 (C1-03, C1-04).
Output frequency
-
-
Frequency Reference Upper Limit
Frequency Reference Lower Limit
Internal S
eed Command
Set S
eed Command
Frequency Reference Upper Limit
Frequency Reference Lower Limit
Set Speed Command
Internal Speed Command
d2-01
d2-02
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