TOHO ELECTRONICS TTM200 - Manual (Page 40)

48-7009-E 3-18
4) Input: K thermocouple, output 1: SSR drive voltage, output 2: relay contact output and single phase 100
V (heating/cooling control)
Temperature sensor
(K thermocouple)
★ Configuration example
(Example) TTM-205
External
relay
Refriger-
ator
Heater
Power
supply
★ Connection configuration
* SSR may be shorted out due to its internal failure. The use of temperature
fuses or an over-temperature prevention device is recommended to cut off
the output circuit of SSR.
K
thermocouple
* Take care when wiring,
as thermocouple has
polarity of “+” and “-.”
Refriger-
ator
External
relay
Heater
TRS1245
Power
supply
Terminal description for the above wiring example
Terminal
No.
Description
Terminal
No.
Description
①
Power supply
⑲
Output 3
Output 4
Not used in this case. ② ⑳
③
Output 1
“-” side ○ 21
④ “+” side ○
22
Input
Not used in this case.
⑤
Output 2
Common ○
23
“-” side
⑥ Normal open ○
24
“+” side
⑦
Output 5 Not used in this case.
○
25 This terminal is not used.
⑧ ○
26
Communication Not used in this case.
⑨
Output 6 Not used in this case.
○
27
⑩ ○
28
DI input Not used in this case.
⑪
Output 7 Not used in this case.
○
29
⑫ ○
30
⑬
CT input Not used in this case.
○
31
⑭ ○
32
⑮ ○
33
⑯ ○
34
⑰
AI input Not used in this case.
⑱