Johnson Controls VS3 Series User Manual

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Appendix A—Description of parameters
VARIABLE SPEED DRIVE SERIES III LIT-12012999—June 2018 www.johnsoncontrols.com
Code Modbus ID Parameter Application RO/RW
P4.2.6 266 Flux Brake 1,2,3 RW
Use this parameter to enable the flux braking, the frequency is reduced and the flux in the motor is
increased, which in turn increases the motor’s capability to brake. Unlike DC braking, the motor
speed remains controlled during braking.
The flux braking can be set ON or OFF.
0 = Flux braking OFF
1 = Flux braking ON
Note: Flux braking converts the energy into heat in the motor, and should be used intermittently to avoid
motor damage.
P4.2.7 265 Flux Brake Current 1,2,3 RW
Use this parameter to set the level of current In amps for the flux braking is enabled.
P4.3.1 264 Skip Range Ramp Factor 1,2,3 RW
Use this parameter to set the multiplier used for acceleration/deceleration time when the output
frequency is between the selected prohibit frequency range limits. The ramping speed (selected
acceleration/deceleration time 1 or 2) is multiplied with this factor. e.g., value 0.1 makes the acceleration
time 10 times shorter than outside the prohibit frequency range limits.
P4.3.2 256 Skip F1 Low Limit 1,2,3 RW
Use this parameter to set frequency limits to prevent the drive from operating in, the frequency
converter will skip the set frequencies, ramp time will be the same. In some systems it may be
necessary to avoid certain frequencies because of mechanical resonance problems.
P4.3.3 257 Skip F1 High Limit 1,2,3 RW
Use this parameter to set frequency limits to prevent the drive from operating in, the frequency
converter will skip the set frequencies, ramp time will be the same. In some systems it may be
necessary to avoid certain frequencies because of mechanical resonance problems.
P4.3.4 258 Skip F2 Low Limit 1,2,3 RW
Use this parameter to set frequency limits to prevent the drive from operating in, the frequency
converter will skip the set frequencies, ramp time will be the same. In some systems it may be
necessary to avoid certain frequencies because of mechanical resonance problems.
P4.3.5 259 Skip F2 High Limit 1,2,3 RW
Use this parameter to set frequency limits to prevent the drive from operating in, the frequency
converter will skip the set frequencies, ramp time will be the same. In some systems it may be
necessary to avoid certain frequencies because of mechanical resonance problems.
P4.3.6 260 Skip F3 Low Limit 1,2,3 RW
Use this parameter to set frequency limits to prevent the drive from operating in, the frequency
converter will skip the set frequencies, ramp time will be the same. In some systems it may be
necessary to avoid certain frequencies because of mechanical resonance problems.

Johnson Controls VS3 Series Specifications

General

Brand	Johnson Controls
Model	VS3 Series
Category	Inverter
Language	English