7-4 Parameter Descriptions MN762
Number
Name
(Display Level)
Value Range, Description and Preset Value
P-17 Analog Input Format
(Analog Input 1)
Range: U 0 - 10
b 0 - 10
A 0 - 20
t 4 - 20
r 4 - 20
t 20 - 4
r 20 - 4
Preset: U 0 - 10
Sets the analog input for voltage or current operation and the range of expected
input signal. A 50% offset by P-30 and 200% scaling by P-16 gives ± P-06.
See parameter P-44 for Analog Input 2.
“b” can be used for bipolar input signals.
“t” indicates the drive will trip if signal removed when drive is enabled.
“r” indicates the drive will ramp to Preset Speed 1 if signal is removed when drive
is enabled.
P-18 Voltage Boost Range: 0.0 to 20.0% for frame A
0.0 to 15.0% for frame B
0.0 to 10.0% for frame C (% of max. output voltage)
Preset: CALC
Sets the percentage of output voltage boost at zero frequency. Torque boost
offsets the voltage drop of the AC motor at low speeds. For high friction loads or
high inertia loads, a high starting torque level may be needed. Voltage boost is
only effective at speeds less than one-half of the motor’s base frequency.
Figure 7-2 Boost Voltage
P18 [Voltage Boost]
50%
100%
Output Voltage (%)
Base Speed
Base Speed
Frequency (Hz)
__________
2
Table 7-1 Parameter Descriptions Continued
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