Red Lion CUB7 - Manual (Page 6)

6
PROGRAMMING EXAMPLES
SCALING A COUNTER
Example: An encoder generates 600 pulses per foot. The Desired Display is
tenths of inches. The Prescaler is determined using the formula below.
Prescaler =
1 (inch) x 10 (Decimal Point Value)

600 pulses/foot x 1 foot/ 12 inches
Where:
Desired Display = The number of Desired
Display units (revolutions,
feet, 10ths of feet, meters,
etc.).
Number of Pulses = The number of pulses
required to achieve the
Desired Display
Decimal Point Value = The desired decimal point
placement on the display.
Example: Display tenths of inches when using
Prescaler =
Desired Display Units x Decimal Point Value

Number of Pulses
= 10/50 = 0.2
Decimal
Point Value
Multiply By
0 1
0.0 10
0.00 100
0.000 1000
0.0000 10000
0.00000 100000
BACKLIGHT OPTION
Optional backlight versions of the CUB7P require an external 9 to 26 VDC
power supply. The external supply is connected between the V+ and common
terminals as shown in the drawing.
HS-6
V+-2
5-RST
1-COM
3-RST EN LS-4
9-26 VDC
POWER SUPPLY
(Backlighting)
+ -
APPLICATION - TOTAL YARDS OF MATERIAL
A fabric manufacturer wants to know, as
economically as possible, how many whole yards of
material his lines are running. The CUB7P000 will
meet his process requirements. The encoder
measuring the material, generates a one pulse per
foot output signal. To obtain the desired display of
yards measured, a prescale value of 0.3333 is
programmed. To program the prescale value, connect
wires between RST EN (Reset Enable) and COM.
(Common); and between HS (Program Enable) and
COM. (Common) to enable the front panel push
buttons (See PROGRAMMING for more details.).
Remove these wires after programming to prevent
accidental changes to the prescale value. At the end
of each shift, the machine operator records the total
shown on the display and resets the counter to zero
via key switch.
KEY RESET
HS-6
V+-2
5-RST
1-COM
3-RST EN LS-4
DC POWER
FOR
ENCODER
+
-
Remove these ( ) wires
after programming to prevent
accidental changes.
SIGNAL
OUTPUT
TROUBLESHOOTING
For further technical assistance, contact technical support at the appropriate company numbers listed.