Rewinder Motor Temperature Sensor (7010R Only) - Tally Dascom 7010 Series Maintenance Manual

2-2. Operation of Control Parts

(9) Rewinder motor temperature sensor (7010R only)

The Rewinder motor temperature sensor is used to detect the temperature of the rewinder
motor. This sensor is a thermistor bonded to the rewinder motor. Since the resistance of the
thermistor changes according to the temperature change, the voltage at pin 11 (MTTH) of U1
(CPU) changes accordingly. The CPU senses the voltage at pin 11 to detect the rewinder
motor temperature.
U1 CPU
R16
MTTH
AN16
11
Rewinding operation when the rewinder motor temperature rises:
When the temperature of the rewinder motor rises to 110 ° C (230 ° F), printing/rewinding stops.
In this case, the ERROR LED blinks and the LCD displays "Alarm Rewinder Hot" on the
operation panel.
When the temperature of the rewinder motor falls below 100 ° C (212 ° F), the LED stops blinking,
the LCD returns to the original display "On Line", and printing/rewinding resumes.
Printing
Printing
+3.3V
J15
R155
10
5
C98
[Main PCB]
100 ° C
(212 ° F)
J501
J504 J701
10
4
4
5
5 5
[Rewinder PCB]
[SA, Rewinder Motor]
(Stops)
Printing
110 ° C
(230 ° F)
(Stop)
2-30
Rewinder Motor Temp. Sensor
(Thermistor)
M
Rewinder Motor