Business > Industrial Devices > Automation Controls Top > FA Sensors & Components > Energy Management Solutions > Communication Devices > KR20 Wireless Unit > Specifications
Discontinued
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Item | Specifications | |
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RS485 type | I/O type | |
Rated voltage | 12 to 24V DC | |
Operating voltage range | 10.8 to 26.4V DC | |
Current consumption | 150mA or less (During sending) | 200mA or less (During sending) |
Inrush current | 23A (when 24V DC) | |
Ambient temperature | -10 to +50°C | |
Storage temperature | -20 to +70°C | |
Ambient humidity | 30 to 85%RH (at 25°C non-condensing) | |
Storage humidity | 30 to 85%RH (at 25°C non-condensing) | |
Breakdown voltage (initial) |
500V AC for 1 min. (Between power terminal and FG/DSUB connector) |
500V AC for 1 min. (Between power terminal and FG/DSUB connector, Between power terminal and input/output terminal, Between input terminal and output terminal) |
Insulation resistance (initial) |
100M ohm or more (at 500V DC mega) (Between power terminal and FG/DSUB connector) |
100M ohm or more (at 500V DC) (Between power terminal and FG/DSUB connector, Between power terminal and input/output terminal, Between input terminal and output terminal) |
Vibration resistance | 10 to 55Hz 1cycle/min. Double amplitude of 0.75mm, 10min. on 3 axes | |
Shock resistance | 98m/s2 or more, 4 times on 3 axes | |
Noise immunity | 1000V [p-p] with pulse width 50ns, 1 μs (based on in-house measurements) (Power terminal) | |
Overcurrent protection of power supply |
Fuse (Rated current: 3.15A) | |
Weight | Approx. 160g |
Item | Specifications | ||
---|---|---|---|
RS485 type | I/O type | ||
Wave type | Direct sequence spread spectrum (DS-SS) | ||
Transmission distance | Approx. 250 m outdoors* (straight, obstacle-free distance), Approx. 50 m indoors | ||
Wave output | 6mW/MHz or less | ||
Frequency | 2403.328MHz to 2480.128MHz | ||
Number of channels | 76ch (Select with communication channel switch)*1 | ||
Number of channels in same transmission area |
15 channels recommended (when select fixed channel)*2 | ||
Transmission speed | 134kbps | ||
Communication style | 1: N topology (N: 99 units max.) | ||
Repeater function | 8 repeaters (Between master and slave) | ||
Response time | - | OFF→ON | Max. 80ms*3 |
ON→OFF |
* The main unit, standard antenna and antenna with cable are designed for indoor use.
If they are used outdoors, then take water-proof measures such as using plastic cases, etc.
Item | Specifications |
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Interface | Conforming to RS232C |
Transmission distance | 15m |
Transmission speed | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bit/s (Selectable with MODE switch) |
Communication method | Half-duplex |
Synchronous system | Synchronous communication method |
Transmission format | Stop bit: 1 bit, Parity: Not available/Available (odd/even), Data length: 7bit/8bit |
Data buffer | 2048 bytes (Max. data byte size for send and receive one time) |
Item | Specifications |
---|---|
Interface | Conforming to RS485 |
Transmission distance | 1,200m |
Transmission speed | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bit/s (Selectable with MODE switch) |
Communication method | Half-duplex |
Synchronous system | Synchronous communication method |
Transmission format | Stop bit: 1 bit, Parity: Not available/Available (odd/even), Data length: 7bit/8bit |
Data buffer | 2048 bytes (Max. data byte size for send and receive one time) |
Ending resistance | Approx. 120 ohm (built-in) (Terminal “E” and terminal “–” are shorted when ending.) |
Number of connected units | Max. 31 |
Item | Specifications | |
---|---|---|
AKR2015 (Output NPN type) | AKR2045 (Output PNP type) | |
Insulation method | Optical coupler | |
Rated input voltage | 12 to 24 V DC (voltage input) | |
Operating voltage range | 10.8 to 26.4 V DC | |
Rated input current | Approx. 3mA/when 12 V, Approx. 6mA/when 24 V | |
Points per common*5 | 8 points/common (Either positive or negative of input power supply can be connected.) | 6 points/common (Either positive or negative of input power supply can be connected.) |
Input impedance | Approx. 4k ohm | |
Operation indicator | LED display (green) |
Item | Specifications | ||
---|---|---|---|
AKR2015 (Output NPN type) | AKR2045 (Output PNP type) | ||
Insulation method | Optical coupler | ||
Output type | Open collector (NPN) | Open collector (PNP) | |
Rated load voltage | 12 to 24 V DC | ||
Allowable load voltage range | 10.8 to 26.4 V DC | ||
Max. load current | 0.3A | ||
Max. inrush current | 1.5A | ||
Points per common*5 | 9 points/common (Signal output, Communication error output) |
7 point/common (Signal output, Communication error output) |
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Off state leakage current | 1 μA or less | ||
On state voltage drop | 1.5 V DC or less | ||
External power supply (+, – terminal) |
Voltage | - | 10.8 to 26.4V DC |
Current | - | Max. 60mA | |
Surge absorber | Zener diode | ||
Operation indicator | LED display |
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Item | Specifications | |
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RS485 type | I/O type | |
Setting function |
• Operating mode change (SET, RUN, TEST) • Communication channel change (CH switch) • Unit No. change (UNIT No. switch) • Serial communication setup (MODE switch) • Slave registration • Initializing (Factory setting) |
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- | Data holding (When communication error) | |
Test function |
Communication test: 3-stage LED display (With setting tool, it can do various communication tests such as changing data amount, including repeaters and so on. And it can measure an approximate communication time.) Field intensity monitor: 3-stage LED display (With setting tool, it can display and record a field intensity of each channel by numeric value.) |
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LED display |
• Distinguish master or slave (MASTER) • On communication, Power on (COM.) • On setting, Complete setting (SET) • Error, Alarm, Caution (ALARM) • Level indication (1, 2, 3: when using test function) |
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- | I/O operating display (16 or 12 points + 1 point of communication error) |
*1 Adding to the fixed channel, 76ch (00 to 4B), 89 group channel can be selected.
Group channel is the function that it selects connectable channel from several fixed channels automatically. When using repeater function, use with the fixed channel.
When using group channel, settable channel numbers are decreased in the same communication area and the communication time becomes longer.
*2 It is different according to the mounting conditions, when several channels are used in the same communication area, communication error might occur due to interference radio wave.
*3 There are no error without serial communication at 1:1 topology.
Response time: Time from input signal to input terminal to output from output terminal in connected equipment
When input signal is shorter than response time, there is a possibility not to transfer to output side.
*4 RS232C and RS485 are not used in the same time.
*5 In case simultaneously ON of input and output, input number and output number are restricted according to the ambient temperature.
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