Taylor C602 - Portion Control (Shake)

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Model C602
Systems, Controls and Operations
Portion Control (Shake)
The portion control sensor, located in the cup
bracket, is a pyro-electric sensor which responds to
temperature changes of any kind. When the draw
valve is opened (during the AUTO mode) and the
product level in the cup reaches the sensor, it will
recognize a temperature change. The control board
then automatically closes the draw valve.
Portion Control Operation
The interface board receives 16 VAC from the
transformer and converts it to 12 VDC for the
personality board.
Auto Mode
If the sensor does not detect the product filling the
cup, the control board will automatically close the
draw valve after the Draw Safety Time has elapsed.
(See Draw Safety Time, page 30.)
Heat Mode
During the heat mode, the flavor keys will not open
the draw valve.
Portion Control Troubleshooting
At Personality Board:
Step 1
Verify that the shake personality board is properly
connected to the interface board.
Step 2
Verify J3 (RED header) connections:
Pin 3 = WHITE: This is the cup-full signal that goes
to the UVC through the interface board. It is
normally less than .2 VDC when a cup-full is not
sensed, and makes a momentary 5 VDC pulse when
a cup-full is sensed.
Pin 2 = BLACK: This is the DC GROUND
connection.
Pin 4 = RED: This is the +12 VDC power supply
from the interface board.
At Pyro Sensor Board:
Step 1
Verify that the shake personality board is properly
connected to the J3 (RED header):
Pin 1 - WHITE: This is the “sense” output of the
sensor.
Pin 2 - BLACK: This is the DC GROUND
connection.
Pin 3 = GREEN: This is the 2.5 VDC reference
output of the sensor.
Pin 4 = RED: This is the +12 VDC power supply for
the sensor.
Step 2
Verify that the wiring harness is properly connected
on J2:
Pin 1 = 12 VDC
Pin 2 = This is the cup-full signal. It is normally less
than .2 VDC when a cup-full is not sensed, and
makes a momentary 5 VDC pulse when a cup-full is
sensed.
Pin 5 = GROUND