TECO A510s - PTC Thermistor Characteristics (B)Ptc Thermistor Connections

4-220
08-35=1、2、3: When the motor cools down and AI2 voltage level is lower the value of 08-43, 『OH4 Motor
overheat
』will reset.
Note:
The resistor (PTC) conform the British Standards Institution:
When Tr is 150 ℃in Class F and is 180℃ in Class H。
Tr－ 5℃：RT≦ 550Ω，put the value of RT in formula (1), the V value by calculation is the value of 08-43.
Tr
＋ 5℃：RT≧1330Ω，put the value of RT in formula (1), the V value by calculation is the value of 08-44.
It gets reference value by using formula (1) even in the different spec of resistor (PTC).

200//
200//
10
2
1
PTC
PTC
RR
R
V


-------- Formula (1)
1330
550
Resistance
(ohms)
Temperature
Class F
150°C
Class H
180°C
Tr'
Tr - 5
Tr
Tr + 5
Tr：Temperature threshold
value
(a) PTC Thermistor
Characteristics
(b) PTC Thermistor
Connections
分壓電阻R
PTC熱敏電阻
＋10V
AI 2
GND
內部線路
200KΩ
Pic 4.3.65 (a) PTC Thermistor Characteristics (b)PTC Thermistor Connections
Resistor
Divider resistor R