Manual

119
DXi User Manual
Appendix C: Current Alarms Within a Conventionlly Wired DXi System
DXi submaster 001-00 resumes automatic irrigation operation, for none condemned
stations. Manual or automatic operations will not activate S1 until alarm is cleared.
Note, Irrigation at satellite 001-02 is not affected in this scenario.
Scenario 7 - DXi submaster 001-00 begins an automatic irrigation operation of
program 3 by activating MV1, Pump1 then station 1. Next DX2 satellite 001-02 begins
an automatic irrigation operation by activating station 4. Next the DXi submaster 001-00
measures current above the maximum allowed current.
FLOW
MAX
Group
Satellite
Type
Master
Valves
"ON"
Pumps
"ON"
Station
"ON"
Min
Current
Nominal
Current
Max
Current
Total
Min.
Current
Total
Measured
Current
Total
Max.
Current
Sub
001-00
DXi M1 P1 1 M1 = 0.20
P1 = 0.25
S1 = 0.15
M1 = 0.25
P1 = 0.30
S1 = 0.20
M1 = 0.29
P1 = 0.34
S1 = 0.24
0.6 0.1 0.87
Sat
001-01
DXi
Sat
001-02
DX2 4 S3 = 0.10 S3 = 0.15 S3 = 0.20 0.1 .16 0.2
Sat
001-03
DX2
Result 7 - DXi submaster 001-00 suspends irrigation (valves are deactivated, and
program runtimes continue to decrement) and starts diagnostic process.
DXi submaster 001-00 activates M1, verifies current is in range and deactivates M1.
DXi submaster 001-00 activates P1, verifies current is above maximum allowed and
deactivates P1.
DXi submaster 001-00 raises alarm 1141 "Pump Maximum Current" and condemns P1.
DXi submaster 001-00 activates S1, verifies current is in range and deactivates S1.
DXi submaster 001-00 terminates automatic irrigation of program 3. Manual operations
will not activate P1 until alarm is cleared. Automatic operations using P1 will be blocked
from running until alarm is cleared.
Note, Irrigation at satellite 001-02 is not affected in this scenario.