Filter
Top Products
6-36 Programming MN792
Ramps Continued
Parameter Descriptions
Reset Value
This value is loaded into the output when Ramp Reset is true, or at power–up. To catch a spinning
load smoothly (‘bumpless transfer’), connect Speed Feedback [62] (source) to Reset Value [422]
(destination).
Range: –300.00 to 300.00 %
MIN. Speed
The minimum speed clamp is fully bi–directional and operates with a 0.5% hysteresis. This clamp
operates on the input to the ramp and it can therefore be overrridden by the Reset Value (as far as
the ramp output is concerned).
Range: 0.00 to 100.00 %
Input
Output
Minimum Speed
-0.5
0
0.5
Functional Description
Ramping Threshold [286]
Ramping [113]
% S Ramp [266]
Ramp Output [293]
Jog/Slack
Input
Output
0
1
0
Input Output
t
S" Ramp
Ramp Decel Time [3]
Ramp Accel Time [2]
Auto Reset [287]
Ramp Hold [118]
Ramp Input [5]
Min Speed [126]
External Reset [288]
Reset Value [422]
S/P O/P
t
RAMP INPUT (+ 100%)
0%
+100%
RAMP OUTPUT
RAMP DECEL TIME
(S RAMP 0%)
t
0%
t
t
0%
0%
RAMP OUTPUT
-100%
RAMP INPUT (-100%)
Acceleration / Deceleration Rates
Ramp Accel Time
(S Ramp 0%)
Actual Accel Time
with S Ramp
Actual Decel Time
with S Ramp
RAMP DECEL TIME
(S RAMP 0%)
Ramp Accel Time
(S Ramp 0%)
Actual Accel Time
with S Ramp
Actual Decel Time
with S Ramp
0%
RAMP HOLD ON
t
t
0%
RAMP OUTPUT
Off
Ramp Hold
Ramp Input
Off
Ramp operation occurs when a ramp input is present. When
Digital Input 2 is ON, Ramp Hold stops the ramp output from
changing. Even when the ramp input signal is removed,
Ramp Hold keeps the ramp output from changing. Once
Ramp Hold is off, the ramp resumes.