Schneider Electric EM3555 manual NV UInt 143 10000 144 500 250 145 Msec 146

ZL0093-0A	EM3555
11/2011	Modbus Point Map

REGISTER R/W NV Format Units Scale Range

142 R/W NV UInt % 1-99

143 R/W NV UInt % 1-99

			10000,
144	R/W NV UInt	Wh	1000,
			100,
			10

				500,
				250,
145	R	NV UInt	msec	100,
				50,
				25,
				10

146 R UInt

147	R	NV UInt	0-32767
148	R	UInt

Description

Phase Loss Voltage Threshold in percent of system
voltage (register 134). Default value is 10 (%). Any
phase (as configured in register 130) whose level
drops below this threshold triggers a phase loss alert,
i.e., if the system voltage is set to 480 V L-L, the L-N
voltage for each phase should be 277 V. When the
threshold is set to 10%, if any phase drops more
than 10% below 277 V, (less than 249 V), or if any	Phase Loss Output
L-L voltage drops more than 10% below 480 V (less
than 432 V) the corresponding phase loss alarm bit in	Note: The phases tested are determined by the
register 146 will be true.	system type.
Phase Loss Imbalance Threshold in Percent. Default
is 25% phase to phase difference. For a 3-phase Y (3

+N) system type (40 in register 130), both line-to-neu- tral and line-to-line voltages are tested. In a 3-phase system type (31 in register 130), only line-to-line voltages are examined. In a single split-phase (2 + N) system type (12 in register 130), just the line-to-neutral voltage are compared.

Wh (& VARh, if equipped)
Energy per Pulse Output
Contact Closure. If the meter
cannot find a pulse duration
that will keep up with the
max. system power (register
135), it will reject the new
value. Check the meter
configuration and/or try a	kWh (& VARh, if equipped) Pulse Contacts
larger value.
Pulse Contact Closure	Note: The kWh pulse contact can keep up with a maximum power (Watts)
Duration in msec. Read-only.
	of 1800000 x Wh pulse weight ÷ contact closure duration (in msec).
Set to the slowest duration
that will keep up with the
theoretical max. system
power (register 135). The
open time ≥ the closure
time, so the max. pulse
rate (pulses per sec) is the
inverse of double the pulse
time.

Error Bitmap. 1 = Active:

Bit 0: Phase A Voltage out of range

Bit 1: Phase B Voltage out of range

Bit 2: Phase C Voltage out of range

Bit 3: Phase A Current out of range

Bit 4: Phase B Current out of range

Bit 5: Phase C Current out of range

Bit 6: Frequency out of the range of 45 to 65 Hz -OR- insufficient voltage to determine frequency.

Bit 7: Reserved for future use

Bit 8: Phase Loss A

Bit 9: Phase Loss B

Bit 10: Phase Loss C

Bit 11: Low Power Factor on A with one or more phases having a PF less than 0.5 due to mis-wiring of phases

Bit 12: Low Power Factor on B

Bit 13: Low Power Factor on C

Bit 14: Energy pulse output overrun error. The pulse outputs are unable to keep up with the total real power (registers 3 and 261/262). To fix, increase the pulse energy register (register 144) and reset the energy accumulators (see reset register 129).

Bit 15: Energy pulse output configuration error (present pulse energy setting may not keep up with the theoretical max. system power; see register 135). To fix, increase the pulse energy (register 144).

Count of Energy Accumulator resets

Reserved (returns 0)

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