Yaskawa BACnet MS/TP - Manual (Page 11)

u Option LED Display
The option has four LEDs.
Two bi-color Status LEDs:
• Module status (MS) red/green
• Network status (NS) red/green
Two BACnet LEDs:
• Transmit (TX) green
• Receive (RX) green
The operational states of the option LEDs after completion of the BACnet power-up diagnostic
LED sequence are described in Table 3 . Wait at least 2 seconds for the power-up diagnostic
process to complete before verifying LED states.
Table 3 Option LED States
Name
Display
Operating Status Remarks
Color Status
MS
– OFF Power supply OFF Power is not being supplied to the drive.
Green ON Normal operation
The option is operating normally and
initialization is complete.
Green Flashing Standby/Initializing
The option is in process of configuring or
waiting for configuration information.
Red Flashing Minor fault
The option has detected a recoverable
minor fault such as incomplete
configuration.
Red ON Major fault
The option has detected an unrecoverable
major fault.
Green/Red Flashing Option self-test The option is in self-test mode.
NS
– OFF Power supply OFF –
Green ON Connected
The device is currently communicating on
the network.
Green Flashing Not connected
The device currently is not communicating,
but is correctly configured. The state is
“waiting” for communication to resume.
Red Flashing Minor fault A minor recoverable fault has occurred.
Red ON Major fault
A non-recoverable major network fault has
occurred.
Green/Red Flashing Network test Power-up sequence and testing
4 Option Components
YASKAWA TOEP YEACOM 08A A1000 Option BACnet MS/TP SI-B3 Installation & Technical Manual 11