Control Techniques M'Ax, Advanced User'S Manual

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15
M’Ax Advanced User Guide
www.controltechniques.com Issue Number: 4
This is the speed reference after the ramps.
The range of this parameter is restricted by the value set in parameter 1.06 Maximum reference clamp.
Set to enable ramps.
0 = Ramp disable
1 = Ramp enable
If this bit is set the ramp will be held. If S-ramp is enabled the acceleration will ramp towards zero causing the ramp output to curve towards a
constant speed.
0 = Ramp hold disabled
1 = Ramp hold enabled
This parameter does not affect the acceleration ramp, and the ramp output always rises at the programmed acceleration rate subject to the
current limits.
0 = Fast ramp
When fast ramps are selected the output of the ramp will fall at the programmed deceleration rate (subject to the current limits programmed in
the drive).
1 = Prevention of Braking resistor overload trip
During deceleration, the braking resistor overload alarm being set will cause a controller to operate, the output of which changes the ramp
rate. As the controller regulates the DC link voltage, the motor deceleration increases and when the motor deceleration rate reaches the
programmed deceleration rate the controller ceases to operate and the drive continues to decelerate at the programmed rate. Controller
gains can be adjusted using parameters 2.48 & 2.49.
Setting this parameter enables the limit switch ramps.
Setting this parameter enables the S-ramp function. S-ramp is disabled during deceleration using standard ramp. When the motor is
accelerated again after decelerating in standard ramp the acceleration ramp used by the S-ramp function is reset to zero.
0 = S-ramp disable
1 = S-ramp enabled
2.01 Post-ramp reference
ô
± Pr 1.06
ð
rpm RO Bi P
2.02 Ramp enable
ô
0 ~ 1
ð
0 RW Bit 0.24
2.03 Ramp hold enable
ô
0 ~ 1
ð
0 RW Bit
2.04 Fast ramp select
ô
0 ~ 1
ð
0 RW Bit 0.27
2.05 Limit switch ramp enable
ô
0 ~ 1
ð
0 RW Bit
2.06 S-ramp enable
ô
0 ~ 1
ð
0 RW Bit
DC Link Voltage
Motor Speed
Programmed
deceleration
rate
t
Controller
operational