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Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 99

Programming Chapter 4

Current Limit Start with Simple Stop Mode

Use the parameters in Table 1 3 to program a Current Limit Start with simple

Stop Mode operation. You can access the Basic parameter set with the HIM.

Table 13 - Current Limit Start with Simple Stop Mode 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 Current Limit. Current Limit

(5)(6)

Current

Limit

(5)(6)

Ramp Time Programs the time period that the controller will HOLD the fixed reduced voltage/current before

switching to full voltage.

0…1000 [10] seconds 10 s

Initial Torque NOT used for a Current Limit Start. 0…90% LRT 70% LRT

Current Limit Level Current Limit Level Limits the current supplied to the motor throughout the 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 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 s

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).

Disable, Start, Coast, Stop Option,

Start/Coast, Start/Stop, Dual Ramp,

OL Select, Fault, Fault NC, Clear Fault,

Emerg Run

Start/Coast

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).

Disable

Aux 1 Config Programs the 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

(7)

Network 1, Network 2, Network 3,

Network 4, Fan Control

Normal

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 it is being applied to.

5…30 10

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.

1.0...2200.0 A 1.0 A

Starting Torque NOT used for a Current Limit Start. 0...300% RMT 100% RMT

Max Torque NOT used for a Current Limit Start. 0...300% RMT 250% RMT

Rated Torque NOT used for a Current Limit Start. 0...100,000 N•m 10 N•m

Rated Speed NOT used for a Current Limit 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) 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.