Download warning - LUCKINSlive

Transcript
Improper Behavior of the Safety I/O Modules
General
The Safety I/O modules detect an internal error in either:
a channel
z the complete module
z
Detected Channel Error
If an error is detected in a channel, this channel is set to the Safe state while the
other channels continue to operate. The information about the detected error is
available in the status registers of the module (see "Quantum Safety I/O Modules"
(see Quantum with Unity Pro, Discrete and Analog I/O, Reference Manual) in the
Quantum with Unity Pro Discrete and Analog I/O Reference Manual). Depending on
the type of detected error, the complete module may have to be exchanged.
Detected Module Error
If a module error is detected, the I/O module enters the Safe state. It then resets,
restart sand performs the power up self-tests:
If the power up self-tests ...
Then the module ...
are successful
starts and operates normally.
are unsuccessful
resets and goes through the same procedure.
NOTE: If several self-tests are unsuccessful, the
module must be exchanged.
After a detected error in a Safety I/O module, it restarts automatically. If the powerup self tests are successful, the module continues normal operation, i.e., it again
sets the outputs to 1. If an inoperable module has been exchanged (hot-swapped),
it also automatically starts operation after the self-test. The application must be
programmed and configured in such a way that it behaves correctly after restart of
the Safety I/O modules.
WARNING
UNEXPECTED APPLICATION BEHAVIOR - AUTOMATIC RESTART
Program and configure the system in such a way that it behaves correctly after the
Safety I/O modules restart.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
62
33003879 04/2013