Model P945

8-channel load simulator

Overview

Features:
  • Eight independent, programmable loads up to 40W each
  • 160W maximum total power dissipation
  • Programmable channel resistances from 10Ω – 1000Ω
  • Per-channel voltage, current, and power reporting
  • Open and short-circuit capability
  • Switchable external inductors
  • Switchable "high-side" connection allows channels to be connected to a common power bus
  • Optional jumper connects two P945s for a total of 320W, allowing 40W simultaneous loading on all 8 channels from a single input cable
  • Real-time signal measurement capabilities for voltage, current, and instantaneous power
  • Controllable and readable from P940 front panel
  • Integrated SCPI command set with other P940 modules, available over Ethernet and USB
Description:

The P945 is an 8-channel isolated load simulation module for the P940 modular power system. Each of the channels is galvanically isolated and can sink up to 40V/2A/40W. External inductors may be switched into the channels to allow simulation of relays, solenoids, torque motors, or other magnetically operated devices.

P945 simulated loads are bipolar and support positive or negative applied voltages with respect to the labeled terminals; the polarity of the input signal only impacts polarity of reported voltage and current measurements.

The P945 is available in two variants. The P945-1 can draw up to 2A per channel and is optimized for simulation of high-power loads such as solenoids or contactors. The P945-2 trades current handling capability for precision measurement of small currents and is optimized for smaller, precision loads such as torque motors.

As a part of the P940 system, the P945 is easily synchronized with other P940 modules, enabling system architects to build whatever power and simulation environment they may require.