Allen-Bradley SMC-50 - Pump Start with Stop

102 Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Chapter 4 Programming
Pump Start with Stop
Use the parameters in Table 1 6 to program a Pump Start with simple Stop
operation. You can access the basic parameter set with the HIM (see Table 11 on
page 96)
.
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.
0.01...1.99 1.15
Motor FLC Required for motor protection. This programmed value is taken directly from the motor nameplate. 1…2200 Amps 1.0 A
Starting Torque Programmed initial or starting point for a Torque Ramp Start. 0…300% RMT 100% RMT
Max Torque Programmed end point for a Torque Ramp Start. 0…300% RMT 250% RMT
Rated Torque The actual rated torque of the motor being used in a Torque Ramp Start. 0…100,000 N·m 10 N·m
Rated Speed The actual rated speed of the motor used in the Torque Ramp Start. 750, 900, 1000, 1200, 1500,
1800, 3500, 3600 rpm
1800 rpm
(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 Ta ble 1 1
.
(5) Torque Ramp Starting mode requires you to perform a Motor Tuning Cycle. The SMC-50 control module does this automatically the first time the motor is run. You can also force this manually by
setting the Force Tuning, Parameter 194, to TRUE (=1), which is accessed from the File Setup, Group Adv. Tuning or by pressing and holding the SMC-50 control module’s Reset button for 10 seconds
with the motor stopped.
(6) You can also program a start delay time to delay starting for a period of time after the initiation of the START command. You can access the Start Delay parameter from the Group Starting selection.
See Tab le 1 1
.
(7) Kickstart is available when using Torque Start. You must configure a Kickstart Level and Time if you use this mode is. Access these parameters via the Starting Setup Group. You can access the Starting
Setup Group with the HIM from the Port <00> DEV PARAM folder under the File-Group, File: Setup, Group: Starting selection sequence. See Tabl e 11
. Setting either parameter to zero disables
Kickstart
(8) 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.
Table 15 - torque Start with Stop Parameters (Continued)
Parameter
Name
Description
Options Default Value
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 16 - Pump 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 Pump Start. Pump Start
(5)(6)
Pump
Start
(5)(6)
Ramp Time Programs the time period that the controller will ramp the output voltage to full voltage
and motor speed from the programmed Initial Torque value.
0…1000 s 10 s
Initial Torque The initial reduced output voltage (torque) level for the voltage ramp to the motor is
established and adjusted with this parameter. The torque level at which the ramp begins.
0…90% LRT 70% LRT