Chapter 3—Operation 63230-300-212
Performing a Wiring Check April 2001
© 2001 Schneider Electric All Rights Reserved
48
8. Correct the wiring errors.
9. Repeat these steps until all errors are corrected.
Table 3–12: Wiring Error Messages
Message Description
Invalid system type
The circuit monitor is set up for a system type that the wiring test
does not support.
Frequency out of range
Actual frequency of the system is not the same as the selected
frequency configured for the circuit monitor.
Voltage not present on all phases No voltage metered on one or more phases.
Severe voltage unbalance present Voltage unbalance on any phase greater than 70%.
Not enough load to check wiring Metered current below deadband on one or more phases.
Suspected error: Check meter configuration for direct connection Set up for voltage input should be “No PT.”
Suspected error: Reverse polarity on all current inputs Check polarities. Polarities on all CTs could be reversed.
Phase rotation does not match meter setup
Metered phase rotation is different than phase rotation selected in
the circuit monitor set up.
Negative kW, check CT & VT polarities
Metered kW is negative, which could indicate swapped polarities
on any CT or VT.
NovoltagemeteredonV1–n NovoltagemeteredonV1–non4-wiresystemonly.
NovoltagemeteredonV2–n NovoltagemeteredonV2–non4-wiresystemonly.
NovoltagemeteredonV3–n NovoltagemeteredonV3–non4-wiresystemonly.
NovoltagemeteredonV1–2 NovoltagemeteredonV1–2.
NovoltagemeteredonV2–3 NovoltagemeteredonV2–3.
No voltage metered on V3-1 No voltage metered on V3-1.
V2–n phase angle out of range V2–n phase angle out of expected range.
V3–n phase angle out of range V3–n phase angle out of expected range.
V2–3 phase angle out of range V2–3 phase angle out of expected range.
V3–1 phase angle out of range V3–1 phase angle out of expected range.
Suspected error: Reverse polarity on V2–n VT Polarity of V2–n VT could be reversed. Check polarity.
Suspected error: Reverse polarity on V3–n VT Polarity of V3–n VT could be reversed. Check polarity.
Suspected error: Reverse polarity on V2–3 VT Polarity of V2–3 VT could be reversed. Check polarity.
HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION
• Turn off all power supplying the circuit monitor and the
equipment in which it is installed before working on it.
• Use a properly rated voltage testing device to verify that the
power is off.
• Never short the secondary of a PT.
• Never open circuit a CT; use the shorting block to short circuit
the leads of the CT before removing the connection from the
circuit monitor.
Failure to follow this instruction will result in death or
serious injury.
DANGER
