Installation manual

38
Reference Manual
00809-0100-4075, Rev CA
Section 6: Troubleshooting
March 2014
Troubleshooting
Table 6-1. Troubleshooting recommended actions
Symptom Recommended action
Wired troubleshooting
Wired device does not turn on
when THUM Adapter is added to
loop
Check the wiring and connections between THUM Adapter and wired device
Verify that enough voltage is being supplied to power both the THUM Adapter and wired
device
Wired Device does not function
properly through loop check
Determine total voltage drop of system assume 2.5 volts for THUM Adapter
Verify that enough voltage is on the loop
Can not communicate with
wired device or THUM Adapter
Verify that wiring is correct
Verify that enough voltage is being supplied to power both THUM Adapter and wired
device
Verify that between 250 and 1100 Ohms resistance is present
Can not communicate with
THUM Adapter
Verify that wiring is correct
Verify that enough voltage is being supplied to power both THUM Adapter and wired
device
Verify that between 250 and 1100 Ohms resistance is present
Verify that Field communicator or AMS Device Manager is set to poll for THUM Adapter
address
Power Cycle device to try again
Configuration troubleshooting
Can not configure THUM
Adapter with 375 or AMS Device
Manager
Make sure that the correct DD is loaded into the 375 or AMS Device Manager
THUM Adapter does not
communicate with wired device
Run the “Configure Discovery Mode” method to connect the THUM Adapter to wired
device
Check the wiring and connections between THUM Adapter and wired device
Verify that between 250 and 1100 Ohms resistance is present for HART communications
Verify that the wired device is functioning properly
Power Cycle device to try again
Duplicate HART Master
Detected
Verify that two primary masters are on the loop
Then set the THUM Adapter into secondary master mode
Power Cycle device to try again
If THUM Adapter is in secondary master mode and 375 or AMS Device Manager is
connected to loop this error will occur
The error will disappear after the 375 or AMS Device Manager is removed from the loop.
Wireless network troubleshooting
THUM Adapter not joining
network
Verify network ID and join key
Wait longer (30 min.)
Verify THUM Adapter is within range of at least one other device
Verify network is in active network advertise
Power Cycle device to try again
Verify device is configured to join. Send the “Force Join” command to the device
See troubleshooting section of Smart Wireless Gateway for more information
Limited Bandwidth Error Reduce the Update Rate on THUM Adapter and wired device
Increase communication paths by adding more wireless points
Check that THUM Adapter has been online for at least an hour
Check that THUM Adapter is not routing through a “limited” routing node
Create a new network with an additional Smart Wireless Gateway