Rockwell Automation T8442 Trusted TMR Speed Monitor - Manual (Page 35)

Trusted
TM
Module T8442
Issue 8 Apr 10 PD-T8442 35
3.2.1. Rack 1 CMD_BOOL (Command Booleans)
Ch. Channel Description Detail
1
Group 1 Over-speed command
enable
2
Group 1 Over-acceleration
command enable
3
Group 2 Over-speed command
enable
4
Group 2 Over-acceleration
command enable
5
Group 3 Over-speed command
enable
6
Group 3 Over-acceleration
command enable
Command Enable:
Enables the outputs to be controlled by the command channels through the
application interface.
Enables the configured output shutdown states if communications with the main
processor are lost.
Command Enable = 1
The output will assume the state of the associated command channel (rack 1,
channels 7 to 12) as set through the application interface.
An output trip condition as determined by the speed monitor will always prevail over
output states set through the application interface.
If communications with the main processor are lost or the application is stopped,
the outputs will assume the tripped state.
Command Enable = 0
The outputs will operate under normal under speed monitor control. Configured
shutdown states are ignored.
7 Group 1 Over-speed command
8
Group 1 Over-acceleration
command
9 Group 2 Over-speed command
10
Group 2 Over-acceleration
command
11 Group 3 Over-speed command
12
Group 3 Over-acceleration
command
Command:
The state that will be assumed by the output if the associated command enable
channel is asserted.
Command = 0
If the associated command enable channel
(rack 1, channels 1 to 6) is asserted the output will trip (transition to the de-
energized relay state).
Command = 1
Speed monitor operation is unaffected.
An output trip condition as determined by the speed monitor will always prevail over
output states set through the application interface.
13 Group 1 Over-speed test enable
14 Group 2 Over-speed test enable
15 Group 3 Over-speed test enable
Over-speed Test Enable:
Temporarily increases the over-speed trip threshold to the over-speed test
threshold.
There is a module-wide timeout set in the system configuration which is applied to
this function. (See 3.1.19)
Over-speed Test Enable = 1.
The temporary over-speed test threshold is enabled.
Over-speed Test Enable = 0.
The temporary over-speed test threshold is disabled.
The over-speed test threshold is automatically disabled by the following:
The over-speed test enable command is negated.
An over-speed trip occurs.
An over-speed test timeout for this group occurs.
All inputs for the group are at zero speed.
The over-speed test state may be read through rack 4, channels 22 to 24.
16 Group 1 Over-speed trip reset
17
Group 1 Over-acceleration trip
reset
18 Group 2 Over-speed trip reset
19
Group 2 Over-acceleration trip
reset
20 Group 3 Over-speed trip reset
Trip Reset:
The 0=>1 transition of this signal is used to reset latching outputs that have been
tripped.
Trip Reset = 1
Resets the trip state of the associated output. This has no effect if the trip condition
is still in force.
Trip Reset = 0
Speed monitor operation is unaffected.