OPERATION
The following describes how the relays operate for each test condition.
PROCESSING - The relay contact closes the connection between pin (5) and pin (6)
while the instrument is performing a test. The connection is opened at the end of the test.
PASS - The relay contact closes the connection between pin (1) and pin (2) after
detecting that the item under test passed all tests. The connection is opened when the
next test is initiated or the reset function is activated.
FAIL - The relay contact closes the connection between pin (3) and pin (4) after detecting
that the item under test failed any test. The connection is opened when the next test is
initiated or the reset function activated.
SIGNAL INPUTS OF REMOTE I/O and PROGRAMMED TESTS
The model 6330 remote connector enables remote operation of the TEST, RESET, and
REMOTE INTERLOCK functions, and allows the operator to select one of 6
preprogrammed tests.
When the PLC Remote mode is ON, the instrument will respond to simple switch or relay
contacts closures. A normally open momentary switch can then be wired across pins 3
and 5 to allow remote operation of the TEST function. When the PLC Remote function is
ON the TEST button on the front panel will be disabled to prevent a test from being
activated through this button. If you attempt to start a test from the front panel TEST
button and the PLC Remote function is turned “ON”, a pop-up message will be
displayed. The pop-up message will appear as follows
A normally open momentary switch can also be wired across pins 2 and 5 to allow
remote operation of the RESET function. For safety, the front panel RESET button
remains active even when a remote reset switch is connected so that high voltage can be
shut down from either location.
The Remote Test Select function gives the user the capability to quickly change
parameters and initiate a test remotely. Six pre-programmed tests can be accessed by
connecting pins 1, 8, and 9 to the common pin 7, in different combinations. The memory
select bits should be set simultaneously and remain set for a minimum of 20ms to
guarantee that the correct memory will be selected. However, the memory select bits
may be set in sequential manner, provided that the time delay between each bit is less
than 4ms. When the desired bit pattern has been established it should remain set for a
minimum of 20ms to guarantee that the correct memory will be selected. The Remote
Tests Select Truth Table (binary) shows the different combinations of momentary
switch (relay) closures, and which memory programs that will be selected as the result. It
may be necessary to "OR" the momentary switches (relay contacts) to prevent incorrect
program selection due to timing errors.
Remote Tests Select Truth Table
To Next Page
Loading...
