Loma IQ2 Service Manual page 28

Units:
Photo eye:
Coil gap:
PEC length:
Filter resist:
Dsp:
Speed mode: Select FIXED, unless your system is variable speed or free running.
Belt speed:
NOTE
VBLE: Will be used when the conveyor speed is variable or sometimes when the conveyor
can be stopped as part of an overall line control system. See paragraphs on Variable
speed systems later in this section.
FRUN:
CTB constant: If variable speed mode has been selected this entry will appear, in
Tolerance:
Module 7026
PHARM: Used with pharmaceutical detector.
CONVEYOR: Driven transport system.
Select METRIC or IMPERIAL as preferred.
Select YES if a product registration photo eye located prior to the
detector has been wired to the control board.
Enter the Coil Gap as shown on the machine details plate
(inside control box), or by reference to Table 1.
If the entry Photo Eye = Yes has been made, this entry will appear,
and a value must be entered. The PEC Length is the distance from the
centre line of the photo eye to the leading face of the detector + the
coil gap "Rx" distance shown on the machine details plate.
Enter the filter resistor value as fitted on the main control board.
Brown-plastic plug in module. Remove top to read value.
If FRUN has been set in Speed mode this entry will appear, if your
detector is a Catalogue FreeFall enter YES otherwise leave at NO.
For variable speed systems select VBLE, and for free running select
FRUN. If in doubt about the required selection, refer to the Principles
of Operation section.
If fixed speed mode has been selected this entry will appear, in which
case enter the belt speed.
Will be used when the product is gravity fed.
which case enter the CTB constant (the CTB constant is the number
of pulses per metre/foot of belt travel from the shaft encoder in
variable speed applications - see calculating CTB constant in this
section).
Select the required level of tolerance to be adopted during auto-
calibration. The lower the setting the more sensitive the detector, but
the more prone it will be too false rejects if the product effect varies
(phase dispersion). We recommend the default setting of LOW for
most applications.
Configuration and Set up Information
5-6