Linear Acceleration (Linear Speed) Start With Stop - Allen-Bradley SMC-50 User Manual

Chapter 4 Programming
Table 14 - Linear Acceleration (Speed Sense) Start with Stop Parameters
Parameter Description
Name
Motor Config Setting for the motor configuration Line Connected Wye or Inside-the-Delta.
Line Voltage Select the value of line voltage being used in the system. The correct line voltage
value must be entered for the voltage protection functions to work properly.
Starting Mode This mode must be programmed for Linear Speed.
Ramp Time Programs the time period that the controller will ramp the output voltage up to full
voltage and to full speed from Stop. With the Linear Speed Starting mode, the time to
ramp to full speed closes to this value depending on load characteristics.
Initial Torque The initial reduced output (torque) level for the voltage ramp to the motor is
established and adjusted to this parameter. Torque level at which the ramp begins.
Current Limit Limits the current supplied to the motor throughout the Linear Start and Stop
(2)
Level cycle.
Stop Mode Programs the desired Stop Mode.
Stop Time Programs the amount of time desired to ramp from full to zero voltage for Soft,
Linear, and Pump Stop mode. Actual ramp stop time depends on the stopping mode
selected and load inertia.
Input 1 Programs the desired operation of the Control Module to a change in status of Input
#1 wired to control terminal #11 (24V DC).
Input 2 Programs the desired operation of the Control Module to a change in status of Input
#2 wired to control terminal #10 (24V DC).
Aux 1 Config Programs the control function of the Auxiliary Output Contact #1, wired across
control terminal #4 and #5.
Aux 2 Config Programs the control function of the Auxiliary Output Contact #2, wired across
control terminal #6 and #7.
Overload Class Required for motor protection. Lets you select the time-to-trip for the built-in Motor
Overload. This selection is based on the type of motor being used and the application.
Service Factor Required for motor protection. This programmed value is taken directly from the
nameplate and used by the controller to determine the ultimate Overload Trip
Current.
Motor FLC Required for motor protection. This programmed value is taken directly from the
motor nameplate.
Starting Torque NOT used for a Linear Speed Start.
Max Torque NOT used for a Linear Speed Start.
Rated Torque NOT used for a Linear Speed Start.
Rated Speed NOT used for a Linear Speed Start.
100
ATTENTION: For Overload Protection, it is critical that you enter the data into
the SMC-50 control module as it appears on the motor nameplate.

Linear Acceleration (Linear Speed) Start with Stop

Use the parameters in
Simple Stop Mode operation. You can access the Basic parameter set with the
HIM (see Table 11).
(3)
(4)
(4)
Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Table 14 to program a Linear Acceleration Start and
Options
(1)
Line, Delta, Auto Detect
0...15,000V
Linear Speed
0...1000 s
0...90% LRT
50...600% FLC
Coast, Soft Stop, Linear Speed, Pump Stop
0...999 s
Disable, Start, Coast, Stop Option, Start/Coast,
Start/Stop, Dual Ramp, OL Select, Fault, Fault NC,
Clear Fault, Emerg Run
Normal, UTS, Fault, Alarm, Ext Bypass, Ext Brake,
(7)
Aux Control , Network 1, Network 2, Network 3,
Network 4, Fan Control
5...30
0.01...1.99
1.0...2200.0 A
0...300% RMT
0...300% RMT
0...100,000 N·m
750, 900, 1000, 1200, 1500, 1800, 3500,
3600 rpm
Default Value
Auto Detect
4160V
(5)(6)
Linear
(5)(6)
Speed
10 seconds
70% LRT
350% FLC
Coast
0 s
Start/Coast
Disable
Normal
10
1.15
1.0 Amps
100 RMT
250% RMT
10 N·m
1800 rpm