RS485 Digital Current Transducer
SPECIFICATIONS
B
Basic Accuracy: .......................0.5% Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Calibration: ..............................True RMS Sensing Response Time: .......................250 ms. max. 0-90% FS
Thermal Drift: ..........................500 PPM/°C Relative Humidity: ...............80% for temperatures up to
Operating Temperature 1 : ..........0°C to +60°C 31°C and decreasing linearly to 50% at 40°C
Installation Category: ..............CAT II Output Resolution: ..................................................16 bit
Pollution Degree: ....................2 Transducer fanout on common bus: ...................64 max.
Insulation Voltage: ..................2500 VDC Baud Rate 3 : ............... 1200, 2400, 4800, 9600,19.7K .bps
Altitude: ..................................2000 meter max A/D Conversion Type: ..................4th order Delta Sigma
Frequency Range: .................20 Hz - 5 KHz Device Address 3 : ............................................00 to FF
MTBF: ....................................Greater than 100K hours Data Format: .... .....................................................ASCII
Cleaning: ................................Water-dampened cloth Supply Current:..................Typical 30mA Max 30mA
Supply Voltage 2 : ......................24 VDC ±10% Weight:.. ..............................................................0.5 lbs.
1) RH 5% to 95%, non-condensing 2) 0.4% max. ripple Vpp
3) Factory default settings:
address 01, baud rate 9600, no parity, no flow control, 1 stop bit
N
L1
L2
LINE
N
N
L
L1
N
L1
L2
1
2
3
4
9
8
7
6
+ 485
-
1
2
3
4
9
8
7
6
+ 485
-
5
+
-
5
+
-
LOAD
LOAD
SUPPLY
LOAD
CRD4110
SUPPLY
Single Element, 2-Wire
CRD4150
SUPPLY
LOAD
Single Element, 3-Wire
L2
L1
L1
L2
-
485 485
L2
1
2
3
4
L1
L3
9
8
7
6
5
+ 485 485
+ -
N
1
2
3
4
L1
L2
L3
9
8
7
6
5
+
-
+ -
SUPPLY
LOAD
SUPPLY
LOAD
SUPPLY
LOAD
CRD4150
3 Element, 3-Wire
CRD4170
3 Element, 4-Wire
Connection Diagram
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
0.14
(3.5)
DIA.
1
RX
1
2
3
4
9
8
7
6
5
1.06
(26.8)
2
3
4
DATA STREAM
TRANSDUCER
9
8
7
6
DATA +
DATA-
GND
+5VDC
CRD485-232
COM
RS232
2.874
5
1 hole for single element
2 holes
for two element
3 holes for three element
(73)
2.874
(73)
0.26 (6.5) Dia.
0.79
(20)
+ -
SUPPLY
DB 9, FEMALE
GND
Transducers Response: >+[% FS Voltage ]+[% FS Current ]+[% FS
L2-N
L2
L3-N
L3
2.99
(76)
1.42
(36) 0.20 3.268
(5.1) (83)
OUTLINE DRAWING
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>
L1-N L1
Voltage ]+[% FS Current ]+[% FS Voltage ]+[% FS Current ,][+/- % 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.
CR Magnetics, Inc. 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
相关PDF资料
CRD5170-150-15 DGTL SENSOR 3PHASE 150 VAC 15 AA
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