Gram IF 4000 Manual De Uso página 247

3-20 Programming and Parameters
Advanced Program Group
A089 [Current Limit]
Maximum output current allowed before current limiting occurs.
Values Default
Min/Max:
Display:
A090 [Motor OL Select]
Drive provides Class 10 motor overload protection. Settings 0-2 select the derating factor for the I
overload function.
Options 0 "No Derate" (Default)
1 "Minimum Derate"
2 "Maximum Derate"
No Derate
100
80
60
40
20
0
0 25 50 75 100 125
% of [Motor NP Hertz]
Min Derate
100
80
60
40
20
0
0 25 50 75 100 125
% of [Motor NP Hertz]
A091 [PWM Frequency]
Sets the carrier frequency for the PWM output waveform. The chart below provides derating
guidelines based on the PWM frequency setting.
Important: Ignoring derating guidelines can cause reduced drive performance.
Values Default
Min/Max:
Display:
100
96
92
88
84
80
76
72
68
64
60
56
52
1 2 3 4 5
Drive Rated Amps × 1.5
0.1/(Drive Rated Amps × 1.8)
0.1 Amps
175
200
100
80
60
40
20
0
0 25 50
150 175 200
4.0 kHz
2.0/16.0 kHz
0.1 kHz
6 7 8 9 10 11 12 13
(continued)
Max Derate
75 100 125 150 175 200
14 15 16
Related Parameter(s): P032
2
t