Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 200)

200 Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
Appendix B Status Indicators
--- E2 --- Transmission Timeout DeviceNet Transmission timeout or nothing
connected to the DeviceNet network.
1. Make sure the communication rate is the
same for all nodes.
2. Check that cables are not loose,
disconnected, or too long.
3. Verify that terminating resistors have been
installed only at both ends of the main
line.
4. Take corrective action for noise.
Red,
flashing A0 --- Relevant Safety I/O
communication stopped
because of a Safety I/O
communication error A safety I/O connection timed out,
interrupting the relevant safety I/O
connection.
Red,
flashing A1 --- All Safety I/O
communication stopped
because of a Safety I/O
communication error A safety I/O connection timed out,
interrupting all I/O connections.
--- P4 All off Input PS Voltage Low I/O power for inputs (V1, G1) is not
connected, although a safety input terminal
or test output terminal is used. 1. Make sure the power supply voltage is set
within the specified range.
2. Check that cables or wires are not loose or
disconnected.
--- P5 All off Output PS Voltage Low I/O power for outputs (V2, G2) is not
connected although a safety output terminal
is used.
--- P1 Target
terminal
red, on
Paired
terminal
red,
flashing External Test Signal Failure
at Safety Input An external wiring error has occurred at a
safety input. 1. Check that the signal wire:
· is not contacting the power
source (positive side).
· does not have an earth fault.
· is not disconnected.
2. Make sure there is not a short-circuit
between signal wires.
3. Make sure there is no failure in the
connected devices.
4. Verify that the discrepancy time settings
are valid.
To recover from this error state, the latch input
error time must have passed and the cause of
the error must have been corrected. The
target safety inputs must turn off.
To change the discrepancy time, you must
reconfigure the safety input.
--- P1 Target
terminal
red, on Discrepancy Error at Safety
Input A discrepancy error occurred between two
inputs configured for dual channel.
--- P1 Target
terminal
red, on
Paired
terminal
red,
flashing Internal Input Failure at
Safety Input An internal circuit failure occurred at the
safety input.
--- P2 N/A Overload Detected at Test
Output Overloading was detected at the test output,
when a test output was configured as a
standard signal output. Check whether the output signal wire has an
earth fault or is overloaded.
--- P2 N/A Stuck-at-high Detected at
Test Output A test output, configured as a standard signal
output, was stuck on. 1. Make sure the power supply source
(positive side) is not contacting the output
signal wire.
After the latch input error time has passed
and the cause of the error has been
corrected, turn off the input. The error will
reset.
2. If there is no fault with the wires, replace
the unit.
--- P2 N/A Undercurrent Detected
Using Muting Lamp Disconnection of indicator light was detected
at the test output, when the T3 terminal is
configured as the muting-lamp signal output. 1. Make sure the output signal wire is not
disconnected.
2. Check the indicator light to make sure it is
not burned out.
Table 32 - Nonfatal Errors
Indicators
Error Log Cause Corrective Action
MS Alphanumeric
Display
(1)
Code
I/O