Loma IQ2 Service Manual page 57

Reject out of run
Turn this to ON if no product is to be allowed down the line without being checked for
metal. This has the effect that it will not be possible to disable the reject mechanism
via the disable reject menu and in addition, provided a photo eye is fitted to the system,
that product will be rejected during a full calibration cycle.
Cal trigger
Turn this facility on if product calibration is to be initiated after the signal level exceeds
a preset value (set by Trigger thrsh in the Manual setup menu). Only appears if no
photo eye is used or if FRUN' (free run) speed mode is selected in the configuration
menu.
Dual frequency (V1.5 & upwards)
Setting YES if the detector has dual frequencies allow the selection of either a high or
low operating frequency as part of the product setup menu. Each product memory can
be set individually thus allowing for instance dry operation at the HIGH frequency when
there is no product signal to run on the same conveyor system as for instance a wet
electrically conductive product that requires a LOW frequency. E.G. polyfilm and metal
film packaging. Dual frequency detectors have a single minimum ferrite memory that is
only available when the frequency option is set to HIGH.
Auxilliary (Aux) relay (V1.5 & upwards)
The function of the attention relay can now be selected according to need. If the
detector is a dual frequency system then the relay is set to DUAL and cannot be
changed. However if the detector is a single frequency then the function of the relay
can be selected as IN RUN (default) or REJECT giving a third set of reject relay
contacts.
PV test
Selecting YES for this feature enables the Performance Validation System (PVS) or
(PV testing). A number of additional menu positions will appear, which require data
input to set-up for PV testing to operate. Please refer to the relevant menu positions in
your user manual for help in setting up. Selecting NO disables PV testing.
Fault on PV
Selecting YES for this feature enables fault relay operation when a System fault is
generated by failure to complete a prompted for PV test. When the conveyor belt
motor controls are wired through this relay the conveyor will stop. Selecting NO
disables the system fault relay operation only.
Module 7026
Configuration and Set up Information
5-35