Alarm Display; Resetting Alarms - Omron S8M Product Manual

Alarm Display

The S8M displays alarms according to the parameters set in Setting
Mode. The alarm number and detected value are alternated on the
display for each alarm.
Example: Abnormal Current Tripping Alarm
1 2 3 4 V A kh C s
Note: Indicator Status Notation
: Lit : Flashing
Note: Alarms will be displayed in order of priority if more than one
alarm occurs at the same time.
Order of priority: A10, A11, A20, A21, A22, A23, A30.

Resetting Alarms

When an alarm is displayed, remove the cause of the alarm and then
press the Reset Key ( ) for at least 3 s. The following display will
appear and the alarm will be reset.
Note: The over-temperature output will automatically be reset when
the temperature drops below the set value. All other alarms
must be reset manually.
Run Mode is returned to automatically when the alarm is reset.
Refer to List of Alarms on page 16 for recovery/resetting
methods.
0.5 s
Nothing displayed
0.5 s
1 2 3 4 V A kh C s
0.5 s 0.5 s
Current when alarm occurred
1 2 3 4 V A kh C s
To Run Mode
Communications
(S8M-CP04-R/ CP04-RS)
The built-in RS-232C port can be used to connect special Support
Tool to set parameters, monitor, perform tripping operations for
branch outputs, and perform other remote monitoring and control
operations from a network.
Type RS-232C
Communications method Half-duplex
Sync method Start-stop
Baud rate 4,800 or 9,600 bps
Transmitted code ASCII
Data bit length 7 or 8 bits
Stop bit length 1 or 2 bits
Error detection Vertical parity and BCC
Parity check None, even, or odd
Protocol CompoWay/F
Support Tool
(S8M-CP04-R/ CP04-RS)
The Support Tool is used to set and monitor models that support
communications. Parameters can be set, operation can be
monitored, and parameter files can be managed.
Support Tool Functions
• Reading and writing parameter settings
• Monitoring present values
• Monitoring status (cutoff status, normal/error status)
Applicable OS: Windows 2000 or XP
Visit OMRON's website for downloading the Support Tool.
Digital Multicircuit Protector
S8M
17