Specifications

Publication 1747-UM011G-EN-P - June 2008
Starting Up Your Control System 131
7. Observe Control Motion
Now that program execution has been verified, checkout of control
motion can begin. All persons involved with the programming,
installation, layout design, machine or process design and
maintenance should be involved in making decisions for determining
the best and safest way to test the total system.
The following procedures are general in nature. Individual conditions
may warrant their modification. The basic approach is to initiate
testing with the least amount of machine motion. Only some outputs
are allowed to generate machine motion. Then additional machine
motion can be gradually added, thereby allowing any problems to be
detected more easily under controlled conditions. The following
procedure provides the steps for testing machine motion using one
output at a time.
Use this procedure to observe control motion.
1. Identify the first output device to be tested and reconnect its
wiring.
2. Place the controller in the Run mode and observe the behavior
of the output device. To do this, simulate the input conditions
necessary to energize the output in the program. If it is not
practical to manually activate an input device, use the force
function to simulate the proper input condition.
3. Repeat steps 1 and 2, testing each output device, one at a time.
ATTENTION
During all phases of checkout, station a person ready to operate
an emergency-stop switch if necessary. The emergency-stop
switch will de-energize the master control relay and remove
power from the machine. This circuit must be hardwired only, it
must not be programmed.
ATTENTION
Contact with ac line potential may cause injury to
personnel. When reconnecting wiring, make sure that the
ac power disconnect switch is opened.
ATTENTION
Never reach into a machine to actuate a device,
unexpected machine operation could occur.
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