Chapter 2: troubleshooting and maintenance – Rockwell Automation 440R MSR312 Configurable Monitoring Safety Relay w/DeviceNet Communications User Manual
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Configurable Monitoring Safety Relay with DeviceNet™ Communications
Chapter 2: Troubleshooting and Maintenance
8
MSR312-UM001B-EN-P
Chapter 2: Troubleshooting and Maintenance
Using the Status LED
Using the Mod/Net Status LED
Function
Status LED
Group 1-2-3 LEDs
Power up / normal operation
Continuous on: green
—
Internal fault
Continuous on: red
—
Entering configuration mode
1 flash: red
—
Input switch fault or reset switch closed during power up
2 flashes: red
—
Configuration change during operation
3 flashes: red
—
Current configuration not as stored on EEPROM
4 flashes: red
—
At least one muting lamp and one reserve lamp defective
5 flashes: red
—
Invalid switch settings of input modules
6 flashes: red
—
Invalid reset configuration (Y41, Y42, S34 terminal jumpers)
7 flashes: red
—
Input terminal block not (or improperly) plugged in
8 flashes: red
—
Group output active
—
Continuous on: green
Group ready
—
Blinking: green
At least one input corresponding to the output group is faulty
—
Continuous on: red
A feedback (EDM) loop of the output group is open, or no input is assigned to the group —
Off
Mod/Net State
LED
Indication
Not powered/not on-line
Off
Device is not on-line. Device has not completed the Dup MAC ID test. Device may not
be powered.
Device operational and on-
line, connected
Solid green
Device is operating in a normal condition and is on-line with connections in the
established state. For Group 2 only, the device is allocated to a master. For a UCMM
capable device it means that the device has one or more established connections.
Device operational and on-
line, not connected, or
device on-line and needs
commissioning
Flashing green
Device is on-line with no connections in the established state. Device has passed the
Dup MAC ID test, is on-line, but has no established connections to other nodes. For a
Group 2 Only device, the device is not allocated to a master. For a UCMM capable
device it means that the device has no established connections. Configuration
missing, incomplete or incorrect.
Minor fault and/or
connection time-out
Flashing red
Recoverable fault and/or one or more I/O connections are in the timed-out state.
Recoverable faults include:
•
Failed Power Supply power-up test.
•
Faulted 24V DC, Out2, Out3.
Critical fault or critical link
failure
Solid red
Device has an unrecoverable fault and may need replacing. Device has detected an
error that has rendered it incapable of communication on the network (Dup MAC
failure or Bus Off).
Communication faulted and
received an identify comm
fault request - long protocol
Flashing red and
green
A specific communcation faulted device. the device has detected a network access
error and is in the communcation faulted state. The device has subsequently received
and accepted an identify communcation faulted request - long protocol message.