Vestil EPT-30 - Manual (Page 63)

63
Curtis PMC 1207/1207A Manual A-8
APPENDIX A: GLOSSARY
65, and 70%). The ramp shape number refers to the PWM output at half
throttle, as a percentage of its full range. For example, if maximum speed is set at
100% and creep speed is set at 0, a ramp shape of 50% will give 50% output at
half throttle. The 50% ramp shape corresponds to a linear response. The six “even
number” ramp shapes for maximum and creep speeds set at 100% and 0 are
shown in Figure A-1.
Fig. A-2 Ramp shape
(throttle map) for control-
ler with maximum speed
set at 100% and creep
speed set at 10%.
THROTTLE (percent)
PW
M (percent)
70%
60%
50%
40%
30%
20%
RAMP SHAPE
100
90
80
70
60
50
40
30
20
10
0
100 90 80 70 60 50 40 30 20 10 0
CREEP SPEED (10%)
MAXIMUM SPEED (100%)
Fig. A-1 Ramp shape
(throttle map) for control-
ler with maximum speed
set at 100% and creep
speed set at 0.
THROTTLE (percent)
PW
M (percent)
70%
60%
50%
40%
30%
20%
RAMP SHAPE
100
90
80
70
60
50
40
30
20
10
0
100 90 80 70 60 50 40 30 20 10 0
CREEP
SPEED
(0)
MAXIMUM SPEED (100%)
Changing either the maximum speed setting or the creep speed setting changes
the output range of the controller. Ramp shape output is always a percentage of
that range. Ramp shapes with the creep speed setting raised to 10% are shown in
Figure A-2.