C04 Flux Plus; C040 Flux Plus; C041 Hispd Flux - Zener MSC-3 Instruction Manual

MSC-3 Start Up

C04 FLUX PLUS

The MSC-3 uses a sensorless flux vector control algorithm to control the motor operation. This control
algorithm provides independent control of motor flux throughout the speed range and is highly robust
against motor parameter changes. It uses the motor nameplate parameters entered in the B00 MOTOR
menu as the basis for its calculations to produce the correct flux in the motor. For a motor to produce
full torque it must have the correct flux applied to it. This is particularly critical at low speed. Flux Plus
adjusts the motor flux estimate to provide additional control where specific adjustments to the motor
torque response are required.

C040 FLUX PLUS

Range: 0 to 150% of adjustment range
• Press  to edit the value.
• Press ▲/ ▼ to make changes to the value.
• Press  to accept the new value OR
• Press ESC to abandon the value change.
This feature enables an adjustment in the flux vector algorithm that can increase motor flux to produce
more torque for the same motor current. The amount of extra torque produced will vary from motor to
motor depending on motor size, efficiency and the operating speed. Increase the value to produce more
torque. This should be done in small steps to ensure the drive does not go into Current Limit. If the drive
does go into current limit decrease the Flux Plus value slightly. This is the maximum torque that the
motor can produce.

C041 HiSpd Flux+

Available Choices:
• Press  once to begin.
• Use the ▲ / ▼ buttons to enable or disable the high speed flux plus.
• Press  to confirm the choice.
When disabled the flux plus decreases with increasing speed. This allows more efficient operation of
the MSC-3 on loads that have a high starting torque but do not require any extra torque during normal
operation. If your load requires high torque throughout the entire speed range then enable C041 HiSpd
Flux+.
76
C040 FLUX PLUS
0.0%
C041 HiSPD FLUX+
DISABLED
ENABLED
DISABLED
IM00120 IM00120