-85-
No. JXC
※
-OMT0002-C
13. Alarm detection
The details of an alarm generated are possible to check using a PC (with controller setting software).
Please refer to the controller setting software manual (No. SFOD-OMT0012) to check the details of
the alarms.
When an alarm is generated, deactivate the alarm after troubleshooting and correcting the error with
reference to section
13.2 Alarms and countermeasures
. Alarms are divided into two types. One
alarm type is possible to be cleared by inputting the RESET signal. The other type cannot be cleared
unless the main control and motor control power supplies are turned off and on again.
13.1 Alarm group PLC input port signals
When an alarm is generated, the controller outputs signals to distinguish the type of alarm that was
set.
Alarms are classified into 4 groups. When an alarm is generated, it is output in signals OUT0 to 3.
Refer to the table below for PLC input port signals according to the alarm groups.
Alarm group
PLC Input port signals
ALARM
OUT0
OUT1
OUT2
OUT3
Alarm group B
OFF
OFF
ON
OFF
OFF
Alarm group C
OFF
OFF
OFF
ON
OFF
Alarm group D
OFF
OFF
OFF
OFF
ON
Alarm group E
OFF
OFF
OFF
OFF
OFF
“
ALARM” is displayed in negative logic.
When an alarm is generated, the SVRE or SETON is input according to the contents of the alarm, as
shown below.
Alarm group
PLC Input port signals
How to start test run.
SVRE
SETON
Alarm group B
No change
No change
RESET is ON
Alarm group C
No change
No change
RESET is ON
Alarm group D
OFF
No change
RESET is ON
Alarm group E
OFF
OFF
Turn off the main control and
motor control power
supplies
→Turn on again
- Procedure to restart -
1. RESET is ON → SVRE: will automatically turn ON (if SVON is ON when RESET is ON)
2. SETUP is ON → Instruction to restart after a Return to origin is completed.