Furness controls FCO770, Manual

Page: 87 / 101

FCO770 Users Guide Issue 1 Page 87
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The FCO770 has the capability of working with up to four test jigs. This multi-jig mode is
automatically enabled if any of the programmable input banks is configured for Jig Start
signals. When multi-jig mode is enabled, the normal remote start signal is not used.
The four Jig Start inputs are used to simultaneously select a product number and start testing.
Product selection is in groups of four, i.e. the four Jig Start inputs will select products 1-4, 5-
8, 9-12 and so on. The group of four that is used is determined by the product number in the
global settings menu which may be any value within the group of 4.
The product pass/fail result is latched for each jig and can be programmed to provide
electrical outputs that may be used for pass/fail lamps at each jig. Associated with this is a
bank of inputs labelled “Jig Result Reset” that may be used to reset the latched results for
each jig. It is recommended that the Jig Result Reset signals are provided by normally closed
sensors that open when they detect the presence of the test components such that the latched
results are automatically reset when the test item is removed from the jig.
The Global Settings menu allows the FCO770 to be used in manual reset or auto reset mode.
In either mode the latched jig results for the current jig are cleared if the reset button is
pressed. In auto reset mode the front panel lamps are automatically cancelled after the reset
delay, but the latched jig results are not cleared until reset is pressed, the jig result reset signal
is applied, or a new test is started on that jig.
START RESET
+24V DC
0V
EXAMPLE 2 JIG SYSTEM
FAIL PASS
LAMP
OUTPUT BANK
JIG RESULTS
RESET
RESET INPUT
JIG RESULT
RESET INPUTS
JIG START
INPUTS
START RESET FAIL PASS
LAMP
RESET
FCO770