Preset slow speed, Basic setup, Preset slow speed basic setup – Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) User Manual

Page 92

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Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013

Chapter 4

Programming

Preset Slow Speed

This control mode may be configured to allow slow speed operation of the
motor.

Basic Setup

The Basic Setup 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.

Parameter

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 to 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 to 450% of full load current

Parameter

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

(3)

(3) This is not to indicate how the motor windings are configured. Do not select “Delta” for MV applications.

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 to 10000
(Refer to

Table 4 in Chapter 3

)

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 to 30 s

Initial Torque

(1)

The initial reduced voltage output level for the voltage
ramp is established and adjusted with this parameter.

(1) Starting Mode must be programmed to Soft Start to obtain access to the Initial Torque parameter.

0 to 90% locked rotor torque

Current Limit Level

(2)

The current limit level that is applied for the Ramp time
selected.

(2) Starting Mode must be programmed to Current Limit to obtain access to the Current Limit Level parameter.

50 to 600% FLC

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