Model 53U Multi Power Monitor

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Single-phase/2-wire and 3-wire, three-phase/3-wire and 4-wire systems

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Three line measured value/bargraph indicators plus energy count/info display

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Modbus, Ao, Di/Do options

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Up to 31st harmonic distortion measurement

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Software lock

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IP 50 front panel

M-System model 53U is a 96-mm-square Multi LCD

Power Monitor mounted on a panel surface.

One model can be used for single-phase/2-wire and

3-wire, three-phase/3-wire and 4-wire systems. Users can freely choose and program major variables such like

AC voltage/current, active/reactive power, power factor,

AC frequency deviation, apparent power, active/reactive energy and up-to-the-31st harmonic distortions.

Measured variables also include the maximum/minimum/ average values, in total of 500 types. Up to 1800 patterns of display combinations are available.

All measured variables can be transmitted to the host PC via RS-485/Modbus RTU. Conversion factors, system confi guration, interval times are programmable using the

PC Confi gurator Software locally or remotely. Measured values, counter values, setting data are stored in the non-volatile memory at the power off.

An open collector output can be used for energy count pulse or limit alarm trip. Pulse rate for energy count can be specifi ed. The contact output can be simulated for testing the connected device.

External open collector input is typically used to reset energy count memory. The signal can be also monitored at the host system via Modbus, so that the host can start/ stop monitoring according to ON/OFF status of a load

(e.g. motor running or not).

Four analog output option (4-20 mA or 1-5 V) is also available instead of Modbus and Di/Do interface. Users can choose and program four among major variables, e.g. 1 VT plus 3 CT, to be converted into analog outputs, thus eliminating needs for four independent single function transducers.

For M-System product information and downloadable data sheets, visit M-System web site at: www.m-system.

co.jp.

User-Friendly PC Software Setting

Save yourself much time using the free PC Confi gurator software

(model: PMCFG) to create, save and download your own parameter settings.

Local (RS-232C) or

Network (Modbus RTU)

Multi Power Monitor

53U

Monitoring and Storing

Measured/Computed Values on the PC

The PC Recorder Light

MSR128LU dedicated for the

53U / L53U is free for downloading from our web site.

Modbus RS-485

Monitoring window for real-time, instantaneous values, max/min values, energy and harmonic distortions

Confi guration window for quick and easy viewing/setting of basic parameters

Multi Power Monitor 53U

RS-232C/

RS-485 Converter

R2K-1

L53U

FRONT DISPLAY FUNCTIONS

500 types of measured variables;

1800 combinations

Bargraphs

Each measured variable is represented in percentage.

www.m-system.co.jp

Information display

Shows the energy count in normal conditions.

Variable type in alarm condition is displayed when an alarm is triggered.

Parameter type is displayed in the setting mode.

Normal mode : Energy count display

Alarm mode : Alarm trip display

Display flashes while the alarm is on.

Configuration mode : Parameter display

SPECIFICATIONS

■ MEASURED VARIABLES

Voltage: 1-N, 2-N, 3-N, 1-2, 2-3, 3-1

Current: 1, 2, 3, N

Average current: 1, 2, 3

Active/reactive/apparent power: 1, 2, 3, ∑

Power factor: 1, 2, 3, ∑

Frequency

Phase angle between voltages: 1-2, 2-3, 3-1

Active energy incoming/outgoing: ∑

Reactive energy inductive/capacitive: ∑

Apparent energy: ∑

Power intervals (demand) and other demands

Harmonic contents: 2nd to 31st

Max. and min. values

■ INPUT

Frequency: 50/60 Hz (45-65 Hz)

Voltage Input

Line-to-line (delta voltage): 480 V

Line-neutral (phase voltage): 277 V

Current Input: 1 A or 5 A

Contact Input: 24 Vdc or 110 Vdc

The status can be monitored on the Modbus; usable to reset energy count or to update average (demand) value.

Operating temp.: -10 to +55°C (14 to 131°F)

Storage temp.: -20 to +80°C (-4 to +176°F)

Operating humidity:

90% RH max. (non-condensing)

Mounting: 1/4 DIN panel fl ush mount

Degree of protection: IP 50 (front)

IP 30 (terminal block and housing)

Weight: 300 g (0.66 lb)

■ PERFORMANCE

Accuracy (in % of span)

Voltage/current: ±0.3% (Option /H: ±0.2 %)

Power: ±0.5%

Power factor: ±0.5%

Frequency: ±0.1%

Energy: ±1% (Option /H: ±0.5%)

Harmonic contents: ±1%

Analog output: Accuracy of assigned measurand or ±0.2 %,whichever is greater.

Response time: ≤2 sec. (0-99 %)

≤3 sec. for frequency/harmonic contents

Sampling time: ≤600 msec.

≤1.1 sec. for frequency/harmonic contents

Insulation resistance: ≥100 MΩ with 500 Vdc

EXTERNAL DIMENSIONS

unit: mm (inch)

96 (3.78) 23

(.91)

80 (3.15) [12 (.47)]

■ OUTPUT

• Modbus RTU

Communication:

Half-duplex, asynchronous, no procedure

Interface: Conforms to EIA RS-485

Max. transmission distance: 500 meters

Baud rate: 1.2-38.4 kbps

Max. number of slave nodes: 31

• DC Current: 4-20 mAdc

Load resistance: ≤270 Ω

• DC Voltage: 1-5 Vdc

Load resistance: ≥5000 Ω

• Open Collector: 130 Vdc @30 mA

Programmable for either alarm or energy count.

2 (.08)

Specifi cations are subject to change without notice.

Your local representative:

Dielectric strength: 4000 Vac @1 minute

(voltage input or current input or contact input or contact output or network interface or confi gurator jack or analog output to power)

2500 Vac @1 minute (voltage input to current input to contact input to contact output to network interface or confi gurator jack or analog output)

2000 Vac @1 minute (circuits to housing)

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STANDARDS & APPROVALS

CE conformity:

EMC Directive (2004/108/EC)

EMI EN 61000-6-4: 2007

EMS EN 61000-6-2: 2005

Low Voltage Directive (2006/95/EC)

EN 61010-1: 2001

UL approval:

UL/C-UL general safety requirements

UL 61010-1: 2005

CAN/CSA-C22.2 No.61010-1: 2004

IEC standard: (applicable with Option /H)

IEC 62053-22: 2003 class 0.5s

IEC 62053-23: 2003 class 2

92 (3.62)

100 (3.94) dia.

GASKET MOUNTING BRACKET

■ INSTALLATION

Auxiliary power input:

100-240 Vac (operational range 85-264 V)

47-66 Hz, <8 VA

M-SYSTEM CO., LTD. — www.m-system.co.jp — [email protected] Product Bulletin 53U_UL_R0_130904