Toho-electronics TTM200 Manuel d'utilisateur Page 39

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48-7009-E 3-17
3) Input: resistance temperature detector, output 1: SSR drive voltage and 3-phase 200 V
Temperature sensor
(resistance temperature
detector)
(Example) TTM-204
* Usable SSR in 3-pahse 200 V is a product
with the input current of 10 mA or less.
Heater
Connection configuration
Configuration example
Heater
* Take care when wiring,
as SSR has polarity of
“+” and “-.
* Take care wiring, as “A,” “B”
and “b” are designated on a
resistance temperature detector.
Power
supply
Resistance
temperature
detector
SSR
SSR
Power
supply
Terminal description for the above wiring example
Terminal No.
Description
Power supply
Output 1
-” side
“+” side
Output 2
Not used in this case.
Output 3
Output 4
Not used in this case.
Input
b
B
A
Communication
Not used in this case.
CT or DI input
Not used in this case.
* 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.
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