Owner`s manual

Manual Control Startup
9
Belt Speed Calibration
OPEN LOOP
The following procedure must be performed after
dc voltage levels have been set and are known to
be accurat e.
Hall Effect pickup identification
NOTE: The cook time digital display should be
adjusted when changing any of the system
components.
Prior to adjusting the display, determine the num-
ber of pulses per spindle revolution generated by
the Hall effect pickup.
1. Move the plastic end-caps on the pickup lo-
cated on the DC motor.
2. If the pickup is marked with the number 2, it is
a single pulse per revolution pickup. If the
pickup is marked with the number 10 (Stan-
dard After 6-1-91) it is a five pulse per revolu-
tion pickup.
3. Replace t he end-caps.
4. Verify the potentiometer setting.
a.) Remove the screws securing the cook
time display lens cover. Remove the lens
cover.
b.) If a 5 pulse pickup is used, verify that the
multiplier potentiometer is set to the x10
position. Refer to Figure 7.
Cooking Time
INCREASE DECREASE
X1
X10
Belt speed DIP switches located
behind cook time digital display
Multiplier potentiometer located behind
cooking time digital display
For 5 pulse pickups set to x10
Figure 7
Set The Be lt Speed DIP Switches.
Set the DIP switches using the data from the table
below.
Model
Pickup DIP Switch Setting
60 Hz Motors
MT2136
Single 7, 5, 2, 1 --- set to OFF
5Pulse 6, 4, 2 --- set t o OFF
MT3255
Single 8 , 1 --- s e t t o O F F
5Pulse 7 --- s e t t o O F F
MT3270
Single 8, 6, 2 --- set to OFF
5Pulse 7, 5, 1 --- set t o OFF
50 Hz Motors
MT2136
Single 7, 6, 2 --- set to OFF
5Pulse 5, 4, 1 --- set t o OFF
MT3255
Single 8, 5, 3, 2 --- set to OFF
5Pulse 7, 4, 2, 1 --- set to OFF
MT3270
Single 8, 6, 5, 4, 3, 2, 1 --- set to OFF
5Pulse 7, 5, 4, 3, 2, 1 --- set to OFF
OFF
Rear Of
Control
Switch Number
Switch Value
8765 4 321
128 64 32 16 8 4 2 1
Figure 8