Rockwell Automation T8442 Trusted TMR Speed Monitor - Manual (Page 30)

Trusted
TM
Module T8442
Issue 8 Apr 10 PD-T8442 30
3.1.17. SOFTA Present Checkbox
This checkbox can be set for each group.
If the checkbox is ticked, the Speed Output Field Termination Assembly (SOFTA) is considered to be
in use and the front panel indicators will be enabled for normal operation.
Clearing the checkbox will disable front panel indicators on the associated group. In this configuration
the SOFTA is considered to be unused.
The default mode of operation is for the SOFTA to be in use.
The configuration will appear in the speed monitor configuration template as:
SOFTA <0|1>
A value of 1 indicates the SOFTA is in use.
3.1.18. Degradation Mode Radio Buttons
This pair of radio buttons can be set for each group.
If the 3-2-0 button is selected, the group input degradation will be configured as 3-2-0. In this mode,
operation with a single sensor is not possible. The over-speed and over-acceleration outputs will both
trip when only one sensor remains available to the group.
If the 3-2-1 button is selected, the group input degradation will be configured as 3-2-1. In this mode,
operation with a single sensor is possible. The over-speed and over-acceleration outputs will both
operate normally with only one sensor available to the group.
The default mode of operation is for 3-2-0 degradation.
The configuration will appear in the speed monitor configuration template as:
NO_DEGRD <0|1>
A value of 0 indicates 3-2-0 degradation mode.
3.1.19. Over-speed Test Timeout
This field can be set globally for the module. (see also, over-speed test limit 3.1.4)
The input value configures the maximum time period in minutes that a group can remain in over-speed
test mode.
If an over-speed test is initiated and an over-speed or zero speed event fails to occur within the
configured time limit, the group will be automatically removed from over-speed test mode and the
normal over-speed threshold will be restored for that group.
The range of values that can be used for this field are 0 to 120.
The default timeout value is 0 minutes.
The configuration will appear in the speed monitor configuration template as:
OST_TOUT