HBM PW15AHi, Mounting Instructions, Page: 10 / 72

PW15AHi
10
A2526-4.0 en/de/fr HBM
5 Electrical configuration and function
The electronics of the PW15AHi digital load cell basically comprise the
following function groups:

Single‐point load cell

Amplifier

Analog/digital converter (A/D)

Evaluation unit (

P)

Power failsafe parameter storage (EEPROM)

Serial interface (RS‐485, CANopen or DeviceNet)

Control input IN1 (Trigger/Stop Dosing)
5.1 Function
Interface
Supply voltage
UB / GND
Serial
interface
IN 1
Trigger
Stop Dosing
EEPROM
Linearization
Serial number
Digital filter
Data rate
Sensitivity
Zero setting
Voltage
controller
Trigger
Voltage
controller
Fig. 5.1 Block diagram
The analog transducer signal is first amplified, then filtered and converted to a
digital value in the analog/digital converter. The digitized signal is conditioned
in the microprocessor and forwarded via the serial interface. All the parameters
can be stored power failsafe in the EEPROM.