Schneider Electric HRB1684301-01 user manual Power factor register format, PF value, PPF register

PowerLogic™ PM5500 series user manual Chapter 16—Power, energy and power factor

Power factor register format

Each power factor value (PF value) occupies one floating point register for power factor (PF register). The meter performs a simple algorithm to the PF value then stores it in the PF register. The meter and software interpret the PF register for all reporting or data entry fields according to the following diagram:

How PF value is stored in the PF register

				0
	-0.5					+0.5
	Quadrant 2				Quadrant 1
	Quadrant 2				Quadrant 1
	-1 ≤ PF ≤ 0				0 ≤ PF ≤ +1
	-1 ≤ PF ≤ 0				0 ≤ PF ≤ 1
-1						+1
		3				4
	Quadrant 3				Quadrant4
	-1 ≤ PF		0		0 ≤ PF ≤ 1
	-1 ≤ PF≤0				0 ≤ PF ≤ +1
	-0.5					+0.5
			0
PF value	0 to -1	-1 to 0		0 to +1		+1 to 0
0	Quadrant 3	-1		0	+1	0
		Quadrant 2		Quadrant 1		Quadrant 4
-2		-1		0	+1	+2
F	-2 to -1	-1 to 0		0 to +1		+1 to +2
PPF register
			0	0
	-0.5					+0.5
		2			Quadrant 1
	Quadrant 2			0
	-1 ≤ PF		0		≤ PF	≤ 1
	-1 ≤ PFregister≤0				≤ PF register≤ +1
-1						+1
	Quadrant 3				Quadrant 4
	Quadrant 3				Quadrant 4
	-2 ≤ PF register ≤ -1			+1 ≤ PF register ≤ +2
	-2 ≤ PF register		≤ -1	2 ≤ PF register ≤ 1
	-1.5					+1.5
			-2	+2

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