Instruction manual

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NOTE The PHZ A value is maintained in nonvolatile memory. The last
programmed value is retained at power-up.
3.5.3.5.CURRENT LIMIT (CRL=8)
The Current Limit can be programmed independently or simultaneously for each phase of
the AC Power system.
1. Select the Current Limit screen by entering:
8 ENT
2. Program all phases to 5 amps:
5 PRG ENT
3.5.3.6.RAMP OR STEP FUNCTIONS (RMP=9)
The Ramp (RMP) function allows any programmable parameter (AMP, FRQ, PHZ, THD,
CAL or CRL) to be Stepped (STP) with a Delay (DLY) for each step to a final value (VAL).
There are three types of programs that may be specified by the RMP screen; a ramp and two
types of step programs.
The step function will program the output parameter value specified by a previous screen for
the time specified for the DLY value in seconds. The parameter will then return to a final
value specified by the VAL value.
The ramp function will step the output parameter value specified by a previous screen with
the STP value, the DLY time per step and the final VAL setup in the RMP screen. The ramp
will increment if the VAL value is larger than the parameter value. It will decrement if it is
less than the parameter value.
NOTE The DLY, STP or VAL parameters must be specified (A,B, or C key
depressed) before the number value for the parameter is entered..
When ramping frequency, an error message will result with an attempt to step the frequency
with greater resolution than that possible by the initial or final values.
The step program may also be used to generate a dropout to zero volts on phase A at any point
on the waveform. This type of program is selected by setting the AMP value to zero before
setting the DLY and VAL parameters. The point on the waveform at which the dropout occurs
is specified by setting the A value in the (PHZ) screen.