ES-1909 Rev.10
CTH
Plug-in Signal Conditioners M-UNIT
CT TRANSMITTER
(inverter use)
Functions & Features
• Converting an alternating current from a current transformer into a standard process signal
• Wide range of frequency can be accepted thanks to the incoporated wide-range CT
• Isolation up to 2000 V AC
• High-density mounting
Typical Applications
• Monitoring load current of motors employing inverters
• Detecting failures of a pump or other device by monitoring abnormal load current of motors
• Monitoring current of electric welding machine
MODEL: CTH–5[1]-[2][3]
ORDERING INFORMATION
• Code number: CTH-5[1]-[2][3]
Specify a code from below for each of [1] through [3].
(e.g. CTH-5A-B/Q)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
INPUT
Current
5
: 0 – 5 A AC
[1] OUTPUT
Current
A
: 4 – 20 mA DC (Load resistance 750 Ω max.)
B
: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C
: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D
: 0 – 20 mA DC (Load resistance 750 Ω max.)
E
: 0 – 16 mA DC (Load resistance 900 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G
: 0 – 1 mA DC (Load resistance 15 kΩ 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 100 Ω min.)
4
: 0 – 10 V DC (Load resistance 1000 Ω min.)
5
: 0 – 5 V DC (Load resistance 500 Ω min.)
6
: 1 – 5 V DC (Load resistance 500 Ω min.)
4W
: -10 – +10 V DC (Load resistance 2000 Ω min.)
5W
: -5 – +5 V DC (Load resistance 1000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[2] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
DC Power
S
: 12 V DC
R
: 24 V DC
V
: 48 V DC
P
: 110 V DC (CE marking unavailable)
[3] OPTIONS
blank
: none
/Q
: With options (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
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to 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 filter
: Selectable with the front switch
INPUT SPECIFICATIONS
Frequency
: 4 Hz – 200 kHz (-3 dB) or 4 Hz – 2 kHz (-3 dB)
Input burden
: 0.5 VA max.
Overload capacity
: 1000 % of rating for 3 sec., 200 % for 10 sec., 120 % continuous
Operational range
: 0 – 120 % of rating
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 15 V max.
■
DC Voltage
: -10 – +12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 10 mA max.; 5 mA for negative voltage output; at ≥ 0.5 V
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 2 VA
•
DC
: Operational voltage range: rating ±10 %, or 85 – 150 V for 110 V rating (ripple 10 % p-p max.)
approx. 2 W (80 mA at 24 V)
Operating temperature
: -5 to +60°C (23 to 140°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 300 g (0.66 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.3 % at 20 Hz – 1 kHz
±7 % at 7 Hz – 100 kHz
Temp. coefficient
:
±0.015 %/°C (±0.008 %/°F) at 20 Hz – 1 kHz
±0.35 %/°C (±0.19 %/°F) at 7 Hz – 100 kHz
Response time
: Approx. 1.5 sec. (0 – 90 %)
Ripple
: 0.5 %p-p max.(The output ripple may increase when there is great difference between the frequencies of input signal and power supply)
Line voltage effect
: ±0.1 % over voltage range
(input 5 - 100 %)
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute (input to output to power to ground)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Installation Category II
Pollution Degree 2
Input to output to power: Reinforced insulation (300 V)
RoHS Directive
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM