Teledyne ULTRAFLOW 150, Operation Manual, Page: 63 / 162

SECTION 6.0, ENHANCED REMOTE PANEL W/MULTI I/O MODULE
The digital output selections are self-explanatory except for the Data
Valid, Fault, and Fatal Fault selections. Data is considered valid in all
Multi I/O modes except TEST FULL SCALE, TEST MID SCALE, TEST
ZERO SCALE, DIAGNOSTIC, and UNKNOWN when a Fatal Fault is
not present. Fatal and Nonfatal Fault conditions are listed in Table 6-6,
Fault Conditions. Fault conditions may also be gleaned from Figure 6-7,
Relay Sequence & Timing.
Data Valid, Fault, and Fatal Fault are fail-safe in nature: they are
energized during normal operation and de-energized when the appropriate
condition arises.
Table 6-6
Fault Conditions
FATAL FAULTS NONFATAL FAULTS
SPAN LOW Calibration Failure Signal Energy Ratio >3X
SPAN HIGH Calibration Failure SN Ratio Warning, Upstream
ZERO Calibration bad SN Ratio Warning, Downstream
SPAN LOW Offset TD bad Purge Failure Upstream Side
SPAN HIGH Offset TD bad Purge Failure Downstream Side
Minimum Signal Energy Not
Achieved, Upstream
Noise Threshold Disabled
Minimum Signal Energy Not
Achieved, Downstream
Temperature Out of Range
FPGA Config. Fault
Out of Service
Gain Disabled
Boxcar Overflow
Filter Mismatch
3 X FPGA Timeout
FPGA Timeout
Divide By Zero
Table 6-7
Digital Inputs for Calibration Request
Input
#1
Input
#2
Input
#3
Input
#4
Input
#5
Input
#6
Command
0 0 0 0 0 0 No action results. No command request recognized.
1 0 0 0 0 0 SPAN HIGH TIE #!
0 1 0 0 0 0 ZERO TIE #1
1 1 0 0 0 0 SPAN LOW TIE #1
0 0 1 0 0 0 CAL CYCLE TIE #1
0 0 0 1 0 0 SPAN HIGH TIE #2
0 0 0 0 1 0 ZERO TIE #2
0 0 0 1 1 0 SPAN LOW TIE #2
0 0 0 0 0 1 CAL CYCLE TIE #2
6-27