Data Stream RS485 Digital Current Transducer
DIN RAIL / PANEL MOUNT
The
CRD4100
Series Data Stream Digital Current Transducers
are designed for applications where AC current waveforms are
not purely sinusoidal. The digital technology is used to measure volt-
age, current, power frequency and energy in single and three phase
designs. The data is streamed over an RS485 IEEE bus which enables
multiple transducers to communicate thru a single master connection.
These advanced sensors are ideal for entire plant or zone monitoring.
Also, the communication alagorithm can be pre-ordered with ASCII
based control or modified MODBUS based control.
Sensing
CRD4110
True RMS Current, Each Phase
Single Element - .26” (6.5) Window
1 to 25 AAC Input Range
Applications
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
B
Data Stream
Features
35mm DIN Rail or Panel Mount
Red LED - Flashes when Power is Connected
Red & Green LED Flash during Communication
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
CRD4150
Two Element - .26” (6.5) Window
1 to 25 AAC Input Range
Regulatory Agencies
CRD4170
Three Element - .26” (6.5) Window
1 to 25 AAC Input Range
CR Magnetics has a wide selection of Current and Potential
Transformers to extend the range of any part.
See Sections F & G for details.
PART NUMBERS
CRD4110
CRD4150
CRD4170
-
-
-
1
5
15
25
-
-
-
-
Single Element, AC Current RS485 Digital Transducer
Two Element, AC Current RS485 Digital Transducer
Three Element, AC Current RS485 Digital Transducer
0-1 AAC
0-5 AAC
0-15 AAC
0-25 AAC
Above 30 AAC must use 5 amp CT
The Professional
Energy Monitoring
Company
Note: Add an M at
the end for MODBUS
CRD4110-5-M
ISO 9001:2008 Quality Management System
M N TI
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
15
E-mail: sales@crmagnetics.com
RS485 Digital Current Transducer
SPECIFICATIONS
Basic Accuracy: .......................0.5%
Calibration: ..............................True RMS Sensing
Thermal Drift: ..........................500 PPM/°C
Operating Temperature
1
: ..........0°C to +60°C
Installation Category: ..............CAT II
Vibration Tested To: .................IEC 60068-2-6,1995
Pollution Degree: ....................2
Insulation Voltage: ..................2500 VDC
Altitude: ..................................2000 meter max
Frequency Range: .................20 Hz - 5 KHz
MTBF: ....................................Greater than 100K hours
Cleaning: ................................Water-dampened cloth
Supply Voltage
2
: ......................24 VDC ±10%
1) RH 5% to 95%, non-condensing 2) 0.4% max. ripple Vpp
3) Factory default settings:
address 01, baud rate 9600, no parity,
N
L2
L1
L1
L2
L3
B
Data Stream
Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Response Time: .......................250 ms. max. 0-90% FS
Relative Humidity:..............5% to 95%, Non-Condensing
Output Resolution: ..................................................16 bit
Transducer fanout on common bus: ...................64 max.
Baud Rate
3
: ...............
1200, 2400, 4800, 9600,19.2K
.bps
A/D Conversion Type: ..................4th order Delta Sigma
Device Address
3
: ............................................00 to FF
Data Format: .... .....................................................ASCII
Supply Current:..................Typical 30mA
Max 30mA
Weight:.. ..............................................................0.5 lbs.
no flow control, 1 stop bit
LINE
N
L
N
L1
1
2
3
4
9
8
7
6
5
+ 485
-
1
2
3
4
+
-
9
8
7
6
5
LOAD
LOAD
+
485
485
-
+
-
LOAD
SUPPLY
LOAD
L2
L2
L1
L1
L3
L3
SUPPLY
SUPPLY
CRD4110
Single Element, 2-Wire
CRD4150
Dual Element, 3-Wire
N
N
1
2
3
4
L1
L1
L2
L2
L3
L3
1
2
3
4
9
8
7
6
5
LOAD
LOAD
+
485
485
-
+
-
LOAD
LOAD
9
8
7
6
5
+
485
485
-
+ -
SUPPLY
SUPPLY
SUPPLY
SUPPLY
CRD4150
Dual Element, 3-Wire
CRD4170
3 Element, 4-Wire
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
1
2
3
4
9
8
7
6
5
DATA +
DATA-
GND
+5VDC
Connection Diagram
RED INDICATIOR LED
GREEN INDICATOR LED
[26.6]
1.05
[3.3]
.13
OPTIONAL
MOUNTING
[31.0]
1.22
TX
RX
[73.1]
2.88
[83.3]
3.28
DIN RAIL
MOUNTING
CLIP
[25]
.98
DATA STREAM
TRANSDUCER
CRD485-232
COM
RS232
+
[6.6]
[78.7] .26
3.10
MAX
[5.6]
.22
TYP
[88.7]
3.49
[76.7]
[64] 3.02
2.52
[28.3]
1.12
[36.6]
1.44
-
GND
DB 9, FEMALE
SUPPLY
ASCII Simplified Programming Commands
A simplified data structure is used with only 6 commands required for full control of
the transducer. Commands are : Read Transducer Name, Read Configuration, Set
Configuration, Read Measurements, Read Energy Totalizer and Clear Energy
Totalizer. For illustration, the following commands are used to read data from a
CRD5170 3 Phase, 4 Wire Transducer with a device address of 00.
Command Transducer to Read Data:
#00A<cr>
Transducers Response:
>+[% FS VoltageL1-N]+[% FS CurrentL1]+[% FS
VoltageL2-N]+[% FS CurrentL2]+[% FS VoltageL3-N]+[% FS CurrentL3,][+/- % FS
Power][+/-% FS VARS][+/-Power Factor][Frequency]<cr>
Command Transducer to Read Energy Totalizer:
#00W<cr>
Transducer Responds:
01[+/-KWHr]{\[+/-KVHr][check sum]<cr>
Note: This is for illustration purposes only, See Applications Guides (Section I
for complete instructions.
[35.0]
1.38
[13.5]
.53
[31.0]
1.22
[19.8] [19.8]
.78
.78
OUTLINE DRAWING
The Professional
Energy Monitoring
Company
ISO 9001:2008 Quality Management System
M N TI
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
16
E-mail: sales@crmagnetics.com