ES-1958 Rev.15
L53U
Power Transducer Series
MULTI POWER TRANSDUCER
Functions & Features
• Measures simultaneously several variables of a heavy-current power system: current, voltage, active, reactive, and apparent power, active and reactive energy, power factor, frequency, etc.
• All measured values, counter values, setting data are stored in the non-volatile memory at the power off
• Conversion factors, system configuration, interval times are programmable
• Open collector output for alarm or energy count
Typical Applications
• Multi-functional power measurement in electric device or in switching boards
MODEL: L53U-1[1][2][3]-[4][5]
ORDERING INFORMATION
• Code number: L53U-1[1][2][3]-[4][5]
Specify a code from below for each of [1] through [5].
(e.g. L53U-1211-AD4/H/A/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)
CONFIGURATION
1
: Single-phase / 2-wire and 3-wire,
3-phase / 3-wire and 4-wire
[1] INPUT
1
: 480 V / 1 A AC
2
: 480 V / 5 A AC
[2] DISCRETE INPUT
0
: None
( ‘External Interface’ codes 1, 4 and 5 Not selectable.)
1
: 24 V DC
(‘External Interface’ codes 2, 3, 6 and 7 Not selectable.)
2
: 110 V DC
(‘External Interface’ codes 2, 3, 6 and 7 Not selectable.)
[3] EXTERNAL INTERFACE
1
: Modbus, Do × 1, Di × 1
2
: 4 – 20 mA DC × 4
3
: 1 – 5 V DC × 4
4
: 4 – 20 mA DC × 2, Do × 1, Di × 1
5
: 1 – 5 V DC × 2, Do × 1, Di × 1
6
: 4 – 20 mA DC × 2, Do × 2
7
: 1 – 5 V DC × 2, Do × 2
[4] AUXILIARY POWER SUPPLY
AD4
: Universal
100 – 240 V AC (Operational range 85 – 264 V, 47 – 66 Hz) /
110 – 240 V DC (Operational range 99 – 264 V,
ripple 10 %p-p max)
R
: DC Power
24 V DC (Operational range 19 – 29 V, ripple 10 %p-p max)
(‘External interface’ codes 1, 4, 5, 6 and 7 Not selectable.)
[5] OPTIONS (multiple selections)
Performance
blank
: Standard
/H
: High accuracy (voltage/current: ±0.2 %, energy: ±0.5 %)
Configurator Software Switch
/A
: Without switch (must specify)
Other Options
blank
: none
/Q
: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
EX-FACTORY SETTING
/SET
: Preset according to the Ordering Information Sheet
(No. ESU-1958)
RELATED PRODUCTS
• PC Configurator cable (model: COP-US)
• PC configurator software (model: PMCFG)
• PC Recorder Light for the 53U Multi Power Monitor (model: MSR128LUx)
Software downloadable at our web site.
GENERAL SPECIFICATIONS
Connection
Voltage input
: Connector type terminal block
(applicable wire size: ≤ 2.5 dia., 0.5 – 3.5 mm
2
,
stripped length 7 - 8 mm)
Current input
: Screw terminal block
(applicable wire size: ≤ 2.4 dia., 0.5 – 3.5 mm
2
,
stripped length 13 - 15 mm)
Discrete input, discrete output, analog output, Modbus, auxiliary power supply
: Connector type terminal block
(applicable wire size: ≤ 2.4 dia., 0.5 – 2.5 mm
2
,
stripped length 7 - 8 mm)
Configuration
: Single phase/2-wire and 3-wire, 3-phase/3-wire balanced/unbalanced load, 3-phase/4-wire balanced/unbalanced load
Housing material
: Flame-resistant resin (gray)
Isolation
: Voltage input to current input to discrete input to discrete output to Modbus or configurator jack or analog output to auxiliary power
■
Measured variables
Voltage
: 1 – N, 2 – N, 3 – N, 1 – 2, 2 – 3, 3 – 1
Current
: 1, 2, 3, N
Active / reactive / apparent power
: 1, 2, 3, Σ
Power factor
: 1, 2, 3, Σ
Frequency
Voltage phase angle
: 1 – 2, 2 – 3, 3 – 1
Active energy
: Incoming / outgoing / high tariff (peak) / low tariff (off-peak)
Reactive energy
:
Incoming / outgoing / lag / lead / high tariff (peak) / low tariff (off-peak)
Apparent energy
Active / reactive / apparent average power (demand)
Average current
: 1, 2, 3,N
Harmonic contents
: Σ, 2nd to 31st
Count time
: High tariff / low tariff
Max. and min. values
Demand history
: 1 to 4
INPUT SPECIFICATIONS
Frequency
: 50 / 60 Hz (45 – 65 Hz)
•
Voltage Input
Rated voltage
Line-to-line (delta voltage)
: 480 V
Line-neutral (phase voltage)
: 277 V (single phase / 2-wire and 3-wire)
Consumption VA
: ≤ U
LN
2
/ 300 kΩ / phase
Overload capacity
: 200 % of rating for 10 sec., 120 % continuous
Selectable primary voltage range
: 50 – 400 000 V
•
Current Input
Rated current
: 1 A or 5 A
Consumption VA
: ≤ I
2
· 0.01 Ω / phase
Overload capacity
: 4000 % of rating for 1 sec., 2000 % for
4 sec., 120 % continuous
Selectable primary current range
: 1 – 20 000 A
Selectable primary power range
: ≤ 2 G VA
Operational range
Voltage, current, apparent power
: ≤ 120 % of the rating
Active / reactive power
: -120 to +120 % of the rating
Frequency
: 45 – 65 Hz
Power factor
: -1 to +1
■
Discrete Input
: 24 V DC or 110 V DC
(input resistance 6 kΩ)
Detecting voltage
: External 24 V DC ±10 % or 110 V DC ±10 %
ON current
: ≥ 1 mA (≤ 24 kΩ @ 24 V, ≤ 110 kΩ @ 110 V)
OFF current
: ≤ 0.1 mA (≥ 240 kΩ @ 24 V, ≥ 1.1 MΩ @ 110 V)
Detecting time
: 10 – 1000 msec.
The status can be monitored on the Modbus; usable to reset energy count or to update average (demand) value.
OUTPUT SPECIFICATIONS
■
Modbus
Communication
: Half-duplex, asynchronous, no procedure
Interface
: Conforms to TIA/EIA-485-A
Max. transmission distance
: 500 meters
Baud rate
: 1.2 – 38.4 kbps
Max. number of nodes
: 31 (except the master)
Protocol
: Modbus RTU
Node address
: 1 – 247 (factory default setting: 1)
Parity
: none, even or odd (factory default setting: odd)
Stop bit
: 1 or 2 (factory default setting: 1)
Media
: Shielded twisted-pair cable (CPEV-S 0.9 dia.)
■ DC Current
: 4 – 20 mA DC
Load resistance
: ≤ 270 Ω
Measurands converted into analog output
: Voltage, Current, Active / reactive / apparent power, Power factor, Frequency, Harmonic contents
■
DC Voltage
: 1 – 5 V DC
Load resistance
: ≥ 5000 Ω
Measurands converted into analog output
: Voltage, Current, Active / reactive / apparent power, Power factor, Frequency, Harmonic contents
■
Open Collector
Programmable for either alarm or energy count.
Max. rated load
: 130 V DC @ 50 mA
Continuous rated load
: 130 V DC @ 30 mA
Saturation voltage
: 1.5 V DC
Measurands applicable to alarm
: Voltage, current, average current (demand), neutral current, frequency, power, average power (demand)
(ON delay, deadband and other parameters are selectable)
Measurands applicable to count
: Energy;
Pulse rate selectable within
0.1 – 10 000.0 kWh/p, kvarh/p, kVAh/p
INSTALLATION
Power consumption
•
AC
: < 10 VA
•
DC
: < 3 W
Operating temperature
: -10 to +55°C (14 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: DIN rail
Weight
: 320 g (0.71 lb)
PERFORMANCE
Accuracy
(at 23°C ±10°C or 73.4°F ±18°F, 45 – 65 Hz)
Voltage
: ±0.3 % (±0.2 % for Option /H)
*1
Current
: ±0.3 % (±0.2 % for Option /H)
*1
Power
: ±0.5 %
*1
Power factor
: ±0.5 %
Frequency
: ±0.1 %
*1
Energy
: ±1 % (±0.5 % for Option /H
*2
)
Harmonic contents
: ±1 %
*1
Analog output
: Accuracy of assigned measurand or ±0.2 %, whichever is greater.
*1. Percentage of the spans:
480 V for voltage;
1 A or 5 A for current; and
4155 W (5 A) or 831 W (1 A) for active power
The described accuracy levels are ensured at the input 1 % or more for phase 2 current with 3-phase/3-wire unbalanced load, for neutral current with 3-phase/4-wire unbalanced load, and neutral current with 1-phase/3-wire.
*2. Accuracy level:
Active energy class 0.5S according to IEC 62053-22
(Reactive energy class 2 according to IEC 62053-23)
Sampling rate
: 64 samples per cycle
Data update period
:
Harmonic contents and frequency
: ≤ 1.1 sec.
Other
: ≤ 600 msec.
Response time
: ≤ 2 sec. (0 – 99 %),
≤ 3 sec. for frequency and harmonic contents
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric
strength
:
4000 V AC @ 1 minute
(voltage input or current input or discrete input or discrete output or Modbus or configurator jack or analog output to auxiliary power)
2500 V AC @ 1 minute
(voltage input to current input to discrete input to discrete output to Modbus or configurator jack or analog output)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Measurement Category III (input) (Measurement Category
II if the auxiliary power supply code is R)
Measurement Category II (output)
Installation Category II (auxiliary power)
Pollution Degree 2
Input to auxiliary power: Reinforced insulation (550 V)
Output to auxiliary power: Reinforced insulation (300 V)
Input to output: Basic insulation (550 V)
RoHS Directive
EXTERNAL VIEW
TERMINAL CONNECTIONS
MODBUS WIRING CONNECTION
EXTERNAL DIMENSIONS unit: mm [inch]
SYSTEM CONFIGURATION EXAMPLES