Flowserve 3400IQ Digital Positioner - Manual (Page 104)

Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
04
Table 10.3 Device Troubleshooting C
Symptom
• Device output is not updating.
Possible Cause Items to Check Recommended Action
Resource block mode is OOS Read MODE_BLOCK. ACTUAL of
Resource block.
If necessary, set MODE_BLOCK.
TARGET to Auto.
Resource block is not running. Read the first element of
BLOCK_TEST. Number should be
increasing indicating that block is
running. If block is not running,
check the second element of
BLOCK_TEST.
If second element of BLOCK_TEST
is not zero, write all zeroes to
element.
Check BLOCK_ERR for other
errors.
See Sub-section 10.7 for details
on BLOCK_ERR.
If an error is present in BLOCK_
ERR, then read ERROR_DETAIL.
See Sub-section 10.7 for details
on ERROR_DETAIL parameter.
Set RESTART to processor (or ‘4’)
to soft-restart the device.
Incorrect revision of resource
block firmware.
Read DEV_TYPE , DEV_REV, and
DD_REV.
See Incorrect or non-compatible
tools above in Sub-section 10.3.
Incorrect revision level of the
device firmware.
Read REVISION_ARRAY. See Incorrect or non-compatible
tools above in Sub-section 10.3.
Transducer block mode is OOS Read MODE_BLK . ACTUAL. Set MODE_BLK.TARGET to auto.
NOTE: Transducer block must
be in AUTO mode for the sensor
signal to be passed to ‘AO block.’
Transducer block is not producing
valid primary data.
1. Read the first element of
BLOCK_TEST. Number should be
increasing indicating that block is
running. If block is not running,
check the second element of
BLOCK_TEST.
If second element of BLOCK_TEST
is not zero, write all zeroes to
element.
2. Read BLOCK_ERR. See Sub-section 10.7 for details
on BLOCK_ERR.
3. Verify parameter FINAL_VALUE
is not valid STATUS = good or
uncertain VALUE = active
4. Read FINAL_POSITION VALUE;
should contain the position. Iso-
late valve from process and check
calibration.
Report information to factory.
Analog Output block mode is OOS Read MODE_BLK.ACTUAL of AO
block.
Set MODE_BLK .TARGET to auto.
AO block is not initialized 1. CHANNEL 1. Set to 1
2. SHED_OPT 2. Set to a value other than Un-
initialized
PID block is not initialized SHED_OPT Set to a value other than uniniti-
alized.
PID block mode is OOS Read MODE_BLK.ACTUAL of PID
block.
Set MODE_BLK.TARGET to Auto.