Schneider Electric 4000 manual Running the Diagnostics Wiring Error Test, Meter Information

Chapter 3—Operation	63230-300-212
Performing a Wiring Check		April 2001
	• Voltage connection Van (4-wire) or Vab (3-wire) is correct. This connection
	must be properly wired for the wiring check program to work.
	• 3-phase system. The system must be a 3-phase system. You cannot
	perform a wiring check on a single-phase system.
	• System type. The wiring check can be performed only on the six possible
	system types: 3∅3W2CT, 3∅3W3CT, 3∅4W3CT, 3∅4W4CT,
	3∅4W3CT2PT, and 3∅4W4CT2PT (see Table 5–2 on page 38 of the
	installation manual for a description of system types).
	• Expected displacement power factor is between .60 lagging and .99
	leading.
	• The load must be at least 1% of the CT Primary setting.
	This wiring error program is based on the assumptions above and based on
	a typical wiring system, results may vary depending on your system and
	some errors may not apply to your system. When the wiring test is run, the
	program performs the following checks in this order:
	1. Verifies that the system type is one of those listed above.
	2. Verifies that the frequency is within ±5% of the frequency that you
	selected in circuit monitor set up.
	3. Verifies that the voltage phase angles are 120° apart. If the voltage
	connections are correct, the phase angles will be 120° apart.
	If the voltage connections are correct, the test continues.
	4. Verifies that the measured phase rotation is the same as the phase
	rotation set up in the circuit monitor.
	5. Verifies the magnitude of the currents to see if there is enough load on
	each phase input to perform the check.
	6. Indicates if the 3-phase real power (kW) total is negative, which could
	indicate a possible wiring error.
	7. Compares each current angle to its respective voltage.
Running the Diagnostics Wiring Error Test	When the circuit monitor detects a possible error, you can find and correct the
	problem and then run the check again. Repeat the procedure until no error
	messages are displayed. To perform a wiring diagnostic test, follow these
	steps:
	1. From the Main Menu, select Diagnostics.
	The Diagnostics menu displays.
		DIAGNOSTICS
		Meter Information
		CVM Information
		Read/Write Regs
		Wiring Error Test

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