Allen-Bradley 1305 Series User Manual

Programming
5-20
Advanced Setup Group (continued)
[PWM Fre
q
uenc
y
]
Parameter # 45 Factory Default 4.0 kHz
[PWM
Frequency]
Parameter Type Read & Write Minimum 2.0 kHz
This parameter sets the carrier frequency for the PWM
output waveform.
Important: Output Current derating applies above 4kHz.
See Fig. 5-11.
Important: Changing PWM carrier frequency may result in
changes in Start-up and Holding current if start boost and
DC Holding voltages are in effect. These parameters
should be checked if the carrier frequency is changed and
reprogrammed if needed.
Units 0.1 kHz Maximum 8.0 kHz
Figure 5.11 PWM Frequency Derating
123
4
5
67
8
84
86
88
90
92
94
96
98
100
% Output Current (A)
Carrier Frequency, kHz
Important: Ignoring derating guidelines can
cause reduced drive performance.
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Allen-Bradley 1305 Series Specifications

General

Series	1305
Dimensions	Varies by model
Weight	Varies by model
Frequency Range	50-60 Hz
Control Method	Volts per Hertz
Communication Interface	RS-485
Enclosure Type	IP20
Storage Temperature	-40-70°C
Humidity	5 to 95% non-condensing