Fluke PM2811 User Manual page 57

Using your Programmable Power Supply
• Extended STEP possibilities, i.e., the capability to step sequentially through a
number of predefined voltage and current settings. This can
be done: - Manually using the STEP key.
- Automatically at predefined intervals (internal timer)
- Externally - by a STEP line trigger via the trigger bus
You can use this feature to generate test patterns and simulate ramp
functions. The following table shows in which operating modes the STEP
capabilities can be used:
TRIGGER SOURCE
MANUAL
AUTOMATIC
EXTERNAL-STEP line
EXTERNAL-GPIB
• Closed-case calibration, i.e., your power supply can be calibrated without
removing the cover or even without removing the instrument from your system
cabinet. This feature allows you to calibrate your power supply at its normal
operating temperature. The recommended calibration interval is one year.
Refer to section 7.3.3 "Calibration" for complete calibration details.
• Protection circuitry for safe operation of your power supply:
- by providing protection against OVERTEMPERATURE
- by reporting an UNREGULATED output channel situation
- by reporting conflicts in parameter settings
- by reporting erroneous situations during operation
• Protection circuitry to protect a connected load:
- against OVERVOLTAGE on each output channel
- against OVERCURRENT on each output channel
- against exceeding the sense capability on each output channel
- with the ability to couple the voltage and current setting of the same output
channel (not valid for the linear power supplies)
- with the ability to couple the protection mechanisms of different output
channels of the same power supply
To increase the total output power, connect an output channel to another output
channel of the same voltage and current ratings. The connection can be made in
series or in parallel. The output channels to be connected can be from the same
power supply or from different power supplies; however, the capability of coupling
protection mechanisms is only possible for output channels within the same
power supply.
- by a trigger via the GPIB interface
LOCAL OPERATION
STEP key
AUX key
STEP line
not applicable
REMOTE OPERATION
Not possible
:SOURCE:LIST:... commands
:INIT / :ABORT command
Trigger STEP line trigger
TRG / GET command
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