E-Stop Safety Relay
– Model ES-TA-3D1
6.2 E-stop Relay Faults Specific to DeviceNet
ES-TA-3D1
Network Status Indicator
Description
Recommended Action
Green ON Steady
On line, connected/allocated to master No action required.
Green Flashing
On line, not connected/allocated to
master;
If autobaud is ON, address and baud
rate ok
1) Connect/allocate the device to the master.
2) Check that all connectors and wiring are correct and tightly connected.
3) Check that the overall network is functional by connecting to some other
device on the same DeviceNet network.
4) If autobaud is turned OFF, set the autobaud parameter (offline) to ON or set
the MAC ID switches to a value known not to be in use and offline try to
connect at 125K (factory default), then 250K, then 500K baud until
successful. If unsuccessful, repeat step 2.
Red ON Steady
Critical network fault or
duplicate node address detected
1) Check to ensure that no other device on the network has the
same MAC ID (network address). Each DeviceNet device must have a
unique MAC ID. Use the MAC ID address switches (set at 00 to 63) or set
the MAC ID over the network by setting MAC ID parameter to the desired
value (the MAC ID switches must be set to 64 or higher to allow setting of
the MAC ID via the network).
2) If autobaud is turned OFF, check that the configured baud rate matches the
baud rate of the network.
3) Ensure that the DeviceNet network is properly terminated and grounded
per DeviceNet specifications.
4) Check for insufficient network power supply.
Red Flashing
Connection timeout or no power to
ES-TA-3D1
1) Check input power to the ES-TA-3D1.
2) Check DeviceNet I/O connection time out expected packet rate (EPR)
parameter setting and/or problem with DeviceNet master.
OFF
No network power or off line
1) Check the DeviceNet connector(s) for proper supply voltage and wiring for
loose or incorrect connections.
Green/Red/OFF
Autobaud detecting network baud rate.
1) Check that all connectors and wiring are correct and tightly connected.
2) Check that the overall network is functional by connecting/allocating to
some other device on the same DeviceNet network.
3) Create repetitive network communication to some other device on the
same DeviceNet network. This will allow detection of the baud rate.
ES-TA-3D1
MAC ID Indicator
Description
Recommended Action
ON Steady
MAC ID address is controlled by the
master.
No action required.
Flashing
The address indicated by the MAC ID
switches does not match the current
address. This indicates that the switch
setting has been changed with the
device on. This is normal if the user is
in the process of changing the
address.
1) If switches have been changed, return the switches to the correct address
(the indicator will stop flashing).
2) If trying to change the address, complete the address change procedure.
OFF
MAC ID address is controlled by the
MAC ID switches.
No action required.
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