ABB STT04 Instruction Manual page 72

Table 5-2. STT04 Error Messages for ABB FSK Devices
Affected
Message
FIELD DEVICE
NOT RESPONDING
FIELD DEVICE
NOT SUPPORTED
BY STT
FIELD DEVICE
OPEN SENSOR
FIELD DEVICE
OUTPUT IS FIXED
OR IN ADJ. MODE
FIELD DEVICE RAM
FAILURE
Probable Cause
Device
All FSK Noise on field wiring.
STT terminal not
connected properly.
Short in communication
wire.
Transmitter does not have
a minimum amount of
voltage across inputs.
Transmitter or STT termi-
nal is defective.
All FSK Field device type not sup-
ported by the release of
STT terminal.
EQS Field device temperature
transducer failure.
Field device temperature
transducer not connected.
All FSK STT terminal turned off
while the 4 to 20 mA out-
put was being calibrated.
Transmitter cannot exe-
cute command because of
fix output.
All FSK Internal RAM failure.
TROUBLESHOOTING
(continued)
Corrective Action
Turn off STT terminal. ID tags appear on
screen. Select the ID tag of the transmit-
ter or, select the one appearing within
brackets if unsure of ID tag. Press
. Press . If message is
ENTER STATUS
still present, continue to the next
corrective action.
Check STT terminal wiring connections.
Refer to Figure 2-1 or 2-2 for correct wir-
ing arrangements.
Perform a continuity check to determine if
a short exists.
Correct power problem. Refer to appro-
priate product instruction for minimum
supply voltage requirements.
If available, verify that the STT terminal is
functional by interfacing another transmit-
ter. Replace the STT terminal if not func-
tional.
If STT terminal is functional, replace field
device electronics assembly.
PTS: Replace amplifier assembly, refer to
repair/replacement section of the appro-
priate product instruction for replacement
procedures.
Contact an ABB sales office for upgrade
information.
Replace the temperature transducer.
(i.e., thermocouple, RTD).
Connect the proper transducer
(i.e., thermocouple, RTD).
Power down the transmitter and power
up the transmitter.
Take transmitter out of fix output. Refer to
FIX OUTPUT/CANCEL FIX OUTPUT
Section 4.
Replace electronics. Refer to the repair/
replacement section of the appropriate
product instruction.
ERROR MESSAGES
in
5 - 9