Preset slow speed, Basic set-up, Preset slow speed basic set-up – Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) User Manual
Page 71
Rockwell Automation Publication 7760-UM001D-EN-P - October 2014
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Programming
Chapter 3
Preset Slow Speed
This control mode may be configured to allow slow speed operation of the
motor.
Table 18 - Preset Slow Speed Parameters and Options
Basic Set-up
The Basic Set-up programming group provides a limited parameter set, allowing
quick start-up with minimal adjustments. If the user is planning to implement
some of the advanced features (i.e., Dual Ramp, Unbalance Level, etc.), then the
Linear List programming group should be selected. It provides all the Basic Setup
parameter set plus the advanced set.
Table 19 - Basic Set-up Parameters and Options
Parameter
Description
Option
Slow Speed Select
Allows the user to program the slow speed that best fits the application.
Low:
7%–Forward
10%–Reverse
High:
15%–Forward
20%–Reverse
Slow Speed Direction
This parameter programs the slow speed motor rotational direction.
Forward, Reverse
Slow Accel Current
Allows the user to program the required current to accelerate the motor to slow speed operation.
0...450% of full load current
Slow Running Current
Allows the user to program the required current to operate the motor at the slow speed setting.
0...450% of full load current
Parameter
Description
Option
SMC Option
Displays the type of controller. This is factory set and not adjustable.
Standard
Motor Connection
Displays the location of the SMC in relation to the motor windings.
Line or Delta
(4)
Line Voltage
Displays the system line voltage the unit is connected to.
—
MV Ratio
Scales the output from the Voltage Sensing Board to display correct line voltage.
1...1000
(see
Input Voltage
Ranges)
Starting Mode
Allows the user to program the SMC Flex controller for the type of starting that best fits the application.
Soft Start, Current Limit, Full Voltage,
Linear Speed
Ramp Time
This sets the time period during which the controller will ramp the output voltage.
0...30 s
Initial Torque
(1)
The initial reduced voltage output level for the voltage ramp is established and adjusted with this
parameter.
0...90% locked rotor torque
Current Limit Level
(2)
The current limit level that is applied for the Ramp time selected.
50...600% FLC
Kickstart Time
A boost current is provided to the motor for the programmed time period.
0.0...2.0 s
Kickstart Level
Adjusts the amount of current applied to the motor during kickstart.
0...90% locked rotor torque
Stop Input
Allows the user to select the operation of terminal 18, Stop Input.
Coast, Stop Option
Option 1 Input
Allows the user to select the operation of terminal 16, Option Input #1.
Disable, Stop Option, Fault, Fault NC,
Network
Option 2 Input
Allows the user to select the operation of terminal 15, Option Input #2.
Disable, Preset Slow Speed, Dual Ramp,
Fault, Fault NC, Network, Clear Fault,
Emergency Run
(5)
Stop Mode
Allows the user to program the SMC Flex controller for the type of stopping that best fits the application.
Soft Stop, Linear Speed
Stop Time
This sets the time period which the controller will ramp the voltage during a stopping maneuver.
0.0...120 s
CT Ratio
Scales the CT input to actual motor current (5 amp secondary assumed).
Example: CT Ratio = 150:5, program 150
1...1500