Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 26)

26 Rockwell Automation Publication 1408-UM001D-EN-P - September 2013
Chapter 2 PowerMonitor 1000 Unit Features
Wiring Diagnostics The power monitor performs wiring diagnostics on command to detect and
report wiring errors. Wiring diagnostics operate in any wiring mode except Demo
and 1PT 1CT modes, provided that measured current is at least 10% of the CT
primary parameter in Analog Setup. You may select from three ranges of system
power factor to improve wiring diagnostics accuracy.
This function applies to all models. Models 1408-EM1 and 1408-EM2 provide a
limited results set.
Diagnostic Parameters
When a Perform wiring diagnostics command is given, the power monitor
calculates and returns the results. To reduce the likelihood of erroneous or
misleading wiring diagnostic data, interim results of multiple tests must agree
before results are displayed. Wiring diagnostic results return to their default
status approximately five minutes after the command is issued.
Wiring status:
• Pass - system wiring is correct for the voltage mode and power factor
selections.
• Failed - system wiring is incorrect. Refer to voltage and current input status
for additional information.
• Input Low - measured current is below 10% of full scale.
• Disabled - the power monitor is in Demo or 1PT 1CT wiring mode.
• Waiting Command - five minutes have elapsed since the most recent
command.
• Out of Range - measured phase angles are outside the range of the selected
system power factor.
• Voltage or current input missing (input below the metering threshold) or
inverted (reverse polarity, 180 degrees out of phase)
–
-1 — Test not run; see wiring status for reason.
– 0 — Pass, all inputs present / correct polarity.
– 1 — Phase 1 missing / inverted.
– 2 — Phase 2 missing / inverted.
– 3 — Phase 3 missing / inverted.
– 12 — Phase 1 and 2 missing / inverted.
– 13 — Phase 1 and 3 missing / inverted.
– 23 — Phase 2 and 3 missing / inverted.
– 123 — All 3 phases missing / inverted.
• Voltage rotation
–
-1 — Test not run; see wiring status for reason.
– 123 — Forward phase rotation (ABC).
– 132 — Reverse phase rotation (ACB).
– 4 — Invalid phase rotation (2 inputs wired with same phase).