Testing; Fault And Alarm State - Honeywell XNX Safety Manual

XNX Universal Transmitter
Table 6. Set mA Levels
Signal*
I Inhibit
W Warning
O Overrange
B** Beam Blocked
L** Low Signal
*Faults are set to 1 mA and are not user-selectable
**
Beam blocked and Low Signal apply only to Excel sensors.
4. Using the switches, increment or decrement the value
until the desired value appears. Then use
value and move to the next setting. Repeat for each setting
that must be changed.
The available output range for Inhibit, Warning, Beam Blocked and
Low Signal is from 1.0 to 4.0 mA and for an overrange condition, the
range is 20.0 to 22.0 mA. Refer to Section 5 Warnings/Faults in the
XNX Technical Manual for more information.
5. Once all changes have been made, use the
to move to the '3' and use
settings.
Figure 14. mA Settings Saved
NOTE:
If '3' is not selected, none of the changes will be saved.
Proof Testing Procedure
Output (mA)
Default Min Max
2.0 mA 1.0 3.5
3.0 mA 1.0 3.5
21.0 mA 20
1.0 mA 1.0 4.0
1.0 mA 1.0 4.0
to confirm the
✓
on the front panel to save the
✓

6.4 Testing

6.4.1 Fault and Alarm State

The mA output of the faults and alarm states should be simulated and
the current output at the controller end should be within tolerance.
Refer to Table 6 for the current values for the fault and alarm states.
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1. From the Test Menu, select Alarm/Fault Simulation.
2. Figure 16 shows the menu choices simulating Alarm 1, Alarm 2,
Warning, or a Fault. Selecting the return arrow icon will display
the Alarms/Fault Reset Menu.
switches
3. Selecting an alarm level to simulate will activate a confirmation
screen.
Selecting
selected, the simulation is aborted.
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Figure 15. Alarm/Fault Simulation Screen
Figure 16. Alarm/Fault Simulation Menu
Figure 17. Confirmation
will simulate the selected alarm. If the
✓
is
✖
Testing