Description
ACL series loads are suitable for DC and AC voltages up to 1,000 Hz. There are single-phase models as well as three-phase loads which combine 3 channels or phases, respectively, in one housing. Ethernet, USB, RS-232, CAN, I/O interface and a system bus for Master-Slave operation are built in as standard, a GPIB interface is available as an option. Programming is done in SCPI.
Operating Modes
The ACL series loads have constant current, constant resistance, constant power and constant voltage modes (CC, CR, CP, CV Mode). In AC operation, the set waveform is applied to the load current, independent of the input voltage. In resistance mode, the current level and waveform depend on the level and waveform of the input voltage. In power and voltage mode, the power or voltage is controlled by software by adjusting the input current.
Input Mode, Synchronization
The input mode defines the kind of voltage the electronic load expects at the input:
•DC: direct voltage
•AC: alternating voltage within the specified frequency range with synchronization to input voltage, line/mains voltage, external signal
Protection, Monitoring
•Adjustable overcurrent protection
•Overpower protection
•Overtemperature protection
•Overvoltage indication
•Undervoltage indication
I/O Port (Option ACL06)
All inputs and outputs of the optional I/O port are galvanically isolated from the load input. The control inputs can be operated by 2 ... 24 V. Signals for:
•Analog load setting from 0 ... 5 V or 0 ... 10 V in CC mode
•Operating mode selection
•Input mode (AC, DC)
•Synchronization source (input, line, extern)
•Load activation
•Control source selection (intern, extern)
•Trigger input