Beckhoff EP3356-0022 Documentation page 68

Commissioning/Configuration
Fig. 63: Max. input voltages
• Parallel operation of load cells is possible with the EL/EP3356. Please note:
◦ the EL3356 does not provide a supply! Hence, the power supply employed must be sufficiently
large, since the total bridge resistance of all strain gauges connected together is considerably
reduced due to the parallel connection.
◦ Load cells approved and calibrated by the load cell manufacturer for parallel operation should be
used. The nominal characteristic values [mV/V], zero offset [mV/V] and impedance [Ω, ohm] are
then usually adjusted accordingly.
◦ a 6-wire connection is expressly recommended with the EL3356
Fig. 64: Parallel connection with EL3356
68 Version: 1.1.0 EP3356-0022