ES-3353 Rev.14
LTPE
Power Transducer Series LT-UNIT
AC VOLTAGE TRANSDUCER
(RMS sensing)
Functions & Features
• Converts alternating voltage from a voltage transformer into a standard process signal
• Minimum ripple
• Isolation up to 2000 V AC
• High-density mounting
• Conforms to IEC 60688
Typical Applications
• Centralized monitoring and control of power line and power supply voltages measured at switch boards
• Monitoring abnormal voltage drops for detecting overload
MODEL: LTPE–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: LTPE–[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. LTPE-5A-K3/T/Q)
• Special input and output ranges (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01)
[1] INPUT
Voltage
008
: 0 - 8 V AC (CE not available)
012
: 0 - 12 V AC (CE not available)
1
: 0 – 110 V AC
2
: 0 – 220 V AC
4
: 0 – 90 V AC
5
: 0 – 150 V AC
6
:
0 - 300 V AC
7
:
0 - 550 V AC
0
: Specify voltage (See INPUT SPECIFICATIONS)
(0 % input must be 0 V.)
(CE not available)
[2] OUTPUT
Current
A:
4 – 20 mA DC (Load resistance 500 Ω max.)
D
: 0 – 20 mA DC(Load resistance 500 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1000 Ω max.)
G
: 0 – 1 mA DC (Load resistance 10 kΩ max.)
J
: 0 – 5 mA DC (Load resistance 2000 Ω max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[3] AUXILIARY POWER SUPPLY
AC Power
K3
: 100 – 120V AC
(Operational voltage range 85 - 132 V, 47 - 66 Hz)
L3
: 200 – 240V AC
(Operational voltage range 170 - 264 V, 47 - 66 Hz)
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
V:
48 V DC
(Operational voltage range 48 V ± 10 % , ripple 10 % p-p max.)
P
: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
(CE not available)
[4] OPTIONS (multiple selections)
Terminal Cover
blank
: Without
/T:
With
Other Options
blank
: none
/Q
: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
GENERAL SPECIFICATIONS
Connection
: M4 screw terminals (torque 1.2 N·m)
Screw terminal:
Chrome-plated steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to auxiliary power
Input waveform
: Up to 15 % of 3rd harmonic content
Overrange output
: 0 to 120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
• AC Voltage
: 0 – 550 V AC
Minimum span
: 20 V
Frequency
: 50 or 60 Hz
Operational range
: 0 – 120 % of rating
Overload capacity
: 200 % of rating for 10 sec., 120 % continuous
Input burden
: 0.5 VA (1 VA with Input greater then 300 V at 100 %)
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 10 V max.
■
DC Voltage
: 0 – 12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Power Consumption
•
AC
: Approx. 2 VA
•
DC
: Approx. 1.7 W (15 mA at 110 V)
Operating temperature
: -10 to +55°C (14 to 131°F)
Operating humidity
: 30 to 85 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 400 g (0.88 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,
45 – 65 Hz)
Magnetic field (ext. origin) effect:
± 0.5 % (400 A/m)
Response time
: ≤ 1 sec. (0 – 100 % ±1 %)
Ripple
: 0.5 %p-p max.
Line voltage effect
: ±0.25 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute
(input to output to auxiliary power to ground)
Impulse withstand voltage
: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Measurement Category II (input)
Installation Category II (auxiliary power)
Pollution Degree 2
Input to output or auxiliary power: Reinforced insulation (550 V)
Output to auxiliary power: Reinforced insulation (300 V)
RoHS Directive
CONNECTION DIAGRAM
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]