Protection and diagnostics (cont.), Stall protection and jam detection – Rockwell Automation 150 USE MN/SMC DIALOG + CONTROLLER User Manual

Page 18

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1-8

Product Overview

Protection and Diagnostics
(cont.)

Stall Protection and Jam Detection

The SMC Dialog Plus controller provides both stall protection and
jam detection for enhanced motor and system protection.

Stall protection is user-adjustable from 0.0 to 10.0 seconds (in
addition to the ramp time programmed).

Jam detection allows the user to determine the jam level (up to
999% of the motor’s FLC rating) and the delay time (up to 10.0
seconds) for application flexibility.

Figure 1.8 Stall Protection

Figure 1.9 Jam Detection

Jam detection is disabled during slow speed and braking operation.

Stall

600%

Percent

Full

Load

Current

Time (seconds)

Programmed Start Time

100%

Running Jam

Percent

Full

Load

Current

Time (seconds)

User Programmed Trip Level

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