Bedford B550-2001, Installation And Quick Start Manual, Page: 78 / 116

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Pr.93 Accel 1 to Accel 2 Frequency Transition Factory Setting: 0.00
Pr.94 Decel 1 to Decel 2 Frequency Transition Factory Setting: 0.00
Settings 0.01 to 400.0 Hz Unit: 0.10 Hz
0.00 disable
These functions are used to change acceleration or deceleration depending on attained
frequency and not by closing contacts on the external terminals. The priority of this
parameter is higher than the time of Accel/Decel 1 and Accel/Decel 2.
Pr.95
Auto energy-saving Factory Setting: 00
Settings 00 Disable auto energy-saving operation
01 Enable auto energy-saving operation
When this function is enabled, the AC drive operates at full voltage during speed changes.
At the constant speed periods, drive calculates the optimal output voltage value for the
load and may get it reduced up to 30% below the Maximum Output Voltage.
100%
70%
Output Voltage
Frequency base
Output voltage
With energy-saving enabled, the
drive automatically adjust the output
voltage based on the output power
level. The maximum output voltage
reduction is 30%.
Pr.96
Count Down Completion Factory Setting: 00
Settings 00 to 9999
This parameter defines the top count value for the
B550
internal counter. Please also
see Pr.45 and Pr.46 (setting 13). Counting is incremented when the Multi-Function Input
Terminal M1 or M2, makes a low-to-high transition. Upon completion of the count, either
Multi-Function Output Terminal (MO1) or the Multi-Function Relay Contact (RA, RB) will
close.
B550
Series
sensorless vector frequency drive