DVP201/202/211LC-SL Load Cell Module Operation Manual
Thanks for using the load cell module DVP201/202/211LC-SL. To ensure that the product is correctly installed
and operated, users need to read the operation manual carefully before they use DVP201/202/211LC-SL.
The operati
on manual provides functional specifications, and introduces installation, basic operation and
setting, and the usage of DVP201/202/211LC-SL.
DVP201/202/211LC-SL is an OPEN-TYPE device. It should be installed in a control cabinet free of airborne
dust, humidity, electric shock and vibration. To prevent non-maintenance staff from operating
DVP201/202/211LC-SL, or to prevent an accident from damaging DVP201/202/211LC-SL, the control
cabinet in which DVP201/202/211LC-SL is installed should be equipped with a safeguard. For example, the
control cabinet in which DVP201/202/211LC-SL is installed can be unlocked with a special tool or key. DO
NOT touch any terminal when DVP201/202/211LC-SL is powered up.
In order to prevent the product from being damaged, or prevent staff from being hurt, users need to read the
operation manual carefully, and follow the instructions in the manual.
1.1 Principle of a Load Cell
If a metallic material undergoes tension or strain, it will become thin, and its electrical impedance will increase.
If a metallic material is compressed, its electrical impedance will become small. A strain gauge adopting this
principle is called a load cell. Such sensing device is able to convert physical pressure into electrical signals,
and therefore it is widely used on occasions on which loads, tension and pressure need to be converted into
electrical signals.
1.2 Introduction of a Load Cell
A load cell module provides 24-bit resolution applicable to 4-wire or 6-wire load cells with various eigenvalues.
Therefore, its response time can be adjusted according to users’ requirements. On this basis, the requirements
of load application markets can be easily met. Besides, a DVP series PLC* can read data in a load cell module
or write data to a load cell module by means of the instruction FROM/TO.
*: DVP-SV series PLCs, DVP-EH2-L series PLCs, DVP-SA2 series PLCs, and DVP-SX2 series PLCs support
left-side extension modules.
1.3 Functional Specifications
DVP201/202/211LC-SL
Load cell module Voltage output
Rated supply voltage/Power
consumption
24 V DC (-15 to +20%)/5 W
Static minimum/maximum
voltage
20.4 V/28.8 V DC
Dynamic minimum/maximum
voltage
18.5 V/30.2 V DC
Maximum current consumption 150 mA
Input signal range ±200 mV DC
Sensibility +5 V DC +/-5%
ADC resolution 24 bits
Highest precision 0.04%
Communication interface RS-232, RS-485
Applicable sensor type 4-wire or 6-wire load cell
Expanding a temperature
coefficient
≤ ± 20 ppm/K v. E
Reducing a temperature
coefficient to zero
≤ ± 0.1 μV/K
Linearity error ≤ 0.015%
Response time 2.5, 10, 16, 20, 50, 60, 100, 200, and 400ms
Eigenvalue applicable to a load
cell
0~1, 0~2, 0~4, 0~6, 0~20, 0~40 and 0~80 mV/V
1-2
(8 pages)
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