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Overview:
LD-5700 series multi-loop measurement and display controller collects, displays, controls, remotely transmits, communicates, and prints for various signals such as temperature, pressure, liquid level, and speed in the field. It constitutes a digital acquisition system and control system. A system that needs to perform multiple measurement point inspections.
★ Double-screen LED digital display, PV displays measured value, SV displays current channel number.
★ It can travel to detect 8 or 16 measurement signals, and the measurement signals of each input channel do not interfere with each other.
★ With 36 kinds of signal input functions, each channel can input different signal types at the same time; 0.2% level measurement accuracy.
★ The alarm mode can be selected as “unified alarm output” and “respective alarm output”; when “unified alarm output” is selected, the memory alarm and non-memory alarm functions can be selected, and the instrument panel has LED alarm indicator.
★ Transmission output method can choose "uniform transmission output", "transmit output separately", "transmit according to the sample value of the specified input channel", "16-channel sample value weighted average transmission", "16-channel maximum input Transmit "and" 16-input minimum transmit ".
★ Instrument data refresh cycle is 2 seconds / 16 channels.
★ Support RS485, RS232 serial interface, using standard MODBUS RTU communication protocol.
★ The meter can be equipped with RS232C printing function, with manual printing, timing printing, alarm printing functions.
★ With DC24V feed output, power distribution for field transmitter.
★ The input, output, power, and communication adopt photoelectric isolation technology.
★ Parameter setting password is locked, parameter setting is saved permanently when power is off, and it has the function of parameter recovery system original setting
Instrument wiring diagram
A. Type B and C unified alarm wiring diagram
A. Type B unified transmission wiring diagram
A. Type B separate alarm wiring diagram
A. Type B separate transmission wiring diagram
Type C separate alarm wiring diagram
Type C separate transmission wiring diagram
Note: The terminals for the unified transmission output are on the No. 1 output terminal.
This information is for reference only. In order to continuously improve product performance, all pictures and performance parameters on this website are subject to change without notice, please forgive me! The company reserves the right of final interpretation of all technical parameters and pictures.
Instrument selection
LD-5710□-□-□/□/□/□( )-□-( )Eight circuits ① ② ③ ④ ⑤ ⑥ ⑦ ⑧
LD-5720□-□-□/□/□/□( )-□-( )Sixteen circuits ① ② ③ ④ ⑤ ⑥ ⑦ ⑧
Remarks:
1.①: Because the meter's separate transmission output port and separate alarm port are shared, you can choose as follows: a, unified transmission output + unified alarm output b. Separate transmission output + unified alarm output c, separate alarm output ②: LD-5720 16-channel input instrument does not have separate transmission and separate alarm functions. ③: When the instrument's power supply is D (DC20 ~ 29V), it does not have separate transmission and separate alarm functions. ④: LD-5720C 16-channel input gauge with size 96 * 96mm has no transmission output, only unified alarm can be selected for alarm output. 2. Up to 16 alarm outputs and 8 transmission channels respectively. 3. Please select the function according to the wiring diagram when selecting the type. Some functions can only select one of the functions on the same group of terminals. 4. The selection must be complete, and the function items that are not selected cannot be omitted, and must be filled in with "X". Example 1: LD-5710A-27-0 / 1 / X / X-A (uniform transmission output / and unified alarm output) Example 2: LD-5720A-14-X / 1 / D1 / X-A (uniform alarm output) Example 3: LD-5710A-14-X / 2 / D1 / X-A (respective alarm output) Example 4: LD-5710A-14-00 / X / D1 / X-A (send output separately) |
This information is for reference only. In order to continuously improve product performance, all pictures and performance parameters on this website are subject to change without notice, please forgive me! The company reserves the right of final interpretation of all technical parameters and pictures.
This information is for reference only. In order to continuously improve product performance, all pictures and performance parameters on this website are subject to change without notice, please forgive me! The company reserves the right of final interpretation of all technical parameters and pictures.
Address: 1510, Building B, Yigou Building, No.168 Huayuangang Street, Gongshu District, Hangzhou, Zhejiang Province
