35(65)
2.4 Main Electrical Components Description
2.4.1 Overload Relay
At delivery, the overload relay is set for mannual reset. (the reset button pointing
to H). Manually reset the relay at the tripping of the switch. When motor
overload occurs, stop the machine, then check and solve the problem. After that
open the door of control box, press down the reset button of overload relay (if
you can not press down the reset button, wait for one minute).
①
②
③
④
⑤
⑥
⑥
⑦
Picture 2-12
:
Overload Relay
1) Terminal for contact coil A2.
2) Setting current adjusting scale.
3) Reset (blue).
H: manual reset
A: automatic reset
4) Switch position indication (green).
Tripping of a manual-resetting is indicated by a pin projecting from the front
plate.
5) Test button (red).
6) Auxiliary contact terminals shown in 95.96.97.98. NC and NO contacts are
shown in position 95.96. and 97.98. repectively.
7) Main circuit connection No. must be correspond with terminal Number of
contactor.
Summary of Contents for STM-1220-PW
Page 1: ...STM PW Series Hi Temp Water Heater Date Dec 2014 Version Ver B English ...
Page 2: ......
Page 25: ...25 65 2 3 2 Control Circuit STM PW 400V Picture 2 6 Control Circuit STM PW 400V ...
Page 29: ...29 65 2 3 5 Main Circuit STM PW 230V Picture 2 8 Main Circuit STM PW 230V ...
Page 30: ...30 65 2 3 6 Control Circuit STM PW 230V Picture 2 9 Control Circuit STM PW 230V ...
Page 62: ...62 65 ...