Rockwell Automation Allen-Bradley Dialog Plus 1503D - Stall Protection and Jam Detection

1-8 Product Overview
1560D-UM051D-EN-P – February 2005
Protection and Diagnostics Stall Protection and Jam Detection
(cont.)
The MV 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 (enabled
only after start time expires).
• Jam detection allows the user to determine the jam level (up to 999% of
the motor's full-load current rating) and the delay time (up to 10.0
seconds) for application flexibility.
600%
Percent
Full Load
Current
Programmed Start Time Stall
Time (seconds)
600%
Percent
Full Load
Current
Programmed Start Time Stall
Time (seconds)
Figure 1.8 – Stall Protection
600%
Percent
Full Load
Current
Running
Jam
Time (seconds)
600%
Percent
Full Load
Current
Running
Jam
Time (seconds)
Figure 1.9 – Jam Detection X
X Jam detection is disabled during slow speed and braking operation.