50 Mentor ll User Guide
www.controltechniques.com Issue Number: 12
Sets a threshold value of speed feedback, beyond which 04.24 changes
to 1 to indicate that the threshold has been exceeded, and is the starting
point for taper 1 (if implemented). Armature current reduces, as a
function of speed, at a rate defined by 04.22. This parameter can also be
used as a general-purpose speed threshold.
If only one taper is used, it must be Taper 1. If both are used, Taper 1
must be the first.
Sets a threshold value of speed feedback, beyond which 04.25 changes
to 1 to indicate that the threshold has been exceeded, and is the starting
point for taper 2 (if implemented). Armature current reduces, as a
function of speed, at a rate defined by 04.23. This parameter can also be
used as a general-purpose speed threshold.
Sets the rate of change of armature current limit with respect to speed in
either direction of rotation, above the threshold set by 04.20.
Scaling factor
Refer to Figure 8-6
Figure 8-6
Sets the rate of change of armature I-limit with respect to speed in either
direction of rotation, above the threshold set by 04.21.
Scaling factor
Refer to Figure 8-6
Set to 1 when the threshold set point of 04.20 is exceeded.
Set to 1 when the threshold set point of 04.21 is exceeded.
04.20 Current taper 1 threshold
RW Uni
ô
0 ~ 1000
ð
+1000
04.21 Current taper 2 threshold
RW Uni
ô
0 ~ 1000
ð
+1000
04.22 Current taper 1 slope
RW Uni
ô
0~255
ð
000
04.22 128
∆l
1
∆n
1
----------
×=
04.23 Current taper 2 slope
RW Uni
ô
0~255
ð
000
04.24 Taper threshold 1 exceeded
RO Bit
ô
0or1
ð
0
04.25 Taper threshold 2 exceeded
RO Bit
ô
0or1
ð
0
04.23 128
∆l
2
∆n
2
----------
×=