Option code
Terminal
symbol
Function code
00 01
1 C011 NO NC
2 C012 NO NC
3 C013 NO NC
4 C014 NO NC
5 C015 NO NC
6 C016 NO NC
7 C017 NO NC
8 C018 NO NC
3.2 Alarm terminal (NO-NC contact)
(1) In the case of being connected to AL1
Chart 5
SJ300 intelligent input terminal logic selection
Since the AL1 is initially configured as normally closed, it is closed during normal operation, and
opens in case of alarm or power shutoff.
(2) In the case of being connected to AL2
Since AL2 is initially configured as normally open, it is open during normal operation, and
closed in case of alarm or power shutoff.
(3) Contact logic conversion
The alarm contact defaults to normally closed for both J300 and SJ300. Please refer to the
chart 6 for the logic conversion of the contact in the case of the SJ300.
(Please see the figure 14 and 15 for the operation of the contact.)
Option code
Terminal
symbol
Function code
00 01
AL0, AL1, AL2 C036 a b
Chart 6
SJ300 alarm relay terminal logic selection
(4) To seal in the alarm signal
The J300 cannot seal in the alarm signal because the alarm output is cancelled when the main
power is shut off. On the other hand, SJ300 can seal in the alarm signal because the power for
the control circuit can be maintained by using the R0T0 terminals.
To seal in the alarm signal, supply the R0T0 terminals with the power externally after removing
the J51 connection wiring.
Please refer to the Chart 14 and 15 for the alarm relay operation.
Normal or
Power-off
Error or
Power-off
Error
Normal
12/24
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