Allen-Bradley SMC-50, User Manual

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Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 101
Programming Chapter 4
Torque Start with Stop
Use the parameters in Table 15 to program a Torque Start with simple Stop
operation. You can access the basic parameter set with the HIM (see Table 11 on
page 96 ).
(1) In the AUTO Detect [default] selection, the controller automatically checks the motor configuration.
(2) Enter a value to limit the current but not low enough to inhibit the start cycle.
(3) The stopping mode does not need to match the starting mode (for example, a Soft Start can have a stop mode programmed for [Coast], or Linear Stop—there is no Current Limit Stop or Torque Stop
mode).
(4) Relay Operational Options (for example, ON and OFF delay, etc.) are provided in the File: Setup, Group: I/O selection sequence. See Table 11 .
(5) Kickstart is available when using Soft Start. A Kickstart Level and Time must be configured if this mode is used. Access these parameters via the Starting Setup Group. The Starting Setup Group can be
accessed with the HIM from the Port <00> DEV PARAM folder under the File-Group, File: Setup, Group: Starting selection sequence (see Table 11 ). Setting either parameter to zero disables Kickstart.
(6) You can also program a start delay time to delay starting for a period of time after the initiation of the START command. The Start Delay parameter can be accessed from the Group Starting selection
as noted.
(7) Any auxiliary output configured for Aux Control using the AuxX Config parameter is under control of its associated bit from the Aux Control, Parameter 180. See Parameter 180 information for bit
assignments.
NOTE: This function enables forcing an output, ON or OFF.
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.
Table 15 - torque Start with Stop Parameters
Parameter
Name
Description
Options Default Value
Motor Config Setting for the motor configuration Line Connected Wye or Inside-the-Delta.
(1)
Line, Delta, Auto Detect Auto Detect
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.
0…15,000V 4160V
Starting Mode This mode must be programmed for Torque Ramp. Torque Ramp
(5)(6)(7)
Torque Ramp
(5)(6)(7)
Ramp Time Programs the time period that the controller will ramp the output voltage from the Starting Torque
Value to the Programmed Max Torque Value.
0…1000 s 10 s
Initial Torque NOT used for a Torque Ramp Start. 0…90% LRT 70% LRT
Current Limit
Level
Limits the current supplied to the motor throughout the Torque Ramp Start cycle.
(2)
50…600% FLC 350% FLC
Stop Mode Programs the desired Stop Mode.
(3)
Coast, Soft Stop, Linear Speed,
Pump Stop
Coast
Stop Time Stop Time Programs the amount of time desired to ramp from full to zero voltage for Soft, Linear,
and Pump Stop mode. The actual ramp stop time will depend on the stopping mode selected and
load inertia.
0…999 seconds 0…999 s
Input 1 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). [Default: Start/Coast]
Disable, Start, Coast, Stop
Option, Start/Coast, Start/Stop,
Dual Ramp, OL Select, Fault,
Fault NC, Clear Fault, Emerg
Run
Start/Coast
Input 2 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). [Default: Disable]
Disable
Aux 1 Config Programs control function of the Auxiliary Output Contact #1, wired across control terminal #4 and
#5.
(4)
Normal, UTS, Fault, Alarm, Ext
Bypass, Ext Brake, Aux
Control
(8)
, Network 1, Network
2, Network 3, Network 4,
Fan Control
Normal
Aux 2 Config Programs control function of the Auxiliary Output Contact #2, wired across control terminal #6 and
#7.
(4)
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.
5…30 10 10