Chroma 63600 Series, Инструкция по эксплуатации и программированию, Страница: 77 / 258

Local Operation
4-1
4. Local Operation
4.1 Introduction
This chapter describes how to operate the electronic load from the local panel in details. The
descriptions include: Mainframe panel control, Module panel control and indicators.
In order to use the front panel keys to control the electronic load, local operation must be in
effect. Immediately after the power is applied, local operation will be in effect. When local
operation is in effect, you can operate each module independently, and use the display with
keypad on the Load front panel to control the Load. The input voltage/current is displayed on
the module’s display.
Each module operates independently in CC, CR, CV, CP or CZ mode as a load and
simultaneously measures current, voltage, and power level. Each module also operates
independently in the dynamic load or dynamic load frequency sweep, or the Advance
functions including Timing Measurement, SINE WAVE DYNA, OCP Test, and Program
Sequences. The user is allowed to off-line edit above mentioned parameters. Beside, in any
of the operation modes, when active, the on-line change of parameters changes the
Electronic Loading accordingly, thus making it easy to achieve an optimized test condition
and then saved for later use.
The module allows the user to enter specification of a UUT including V, I, Watt for later
GO/NG check. In addition, the real time measurement bar on the VFD display indicates the
degree of deviation from spec. and guides the users in adjusting to fulfill spec.
This chapter covers the interpretation of the front and rear panel description, the initial setup,
the operation of the different load modes including CC, CR, CV, CP and CZ, the operation of
the two dynamic load modes including dynamic load and dynamic load frequency sweep,
and the operation of the Advance functions including Timing Measurement, SINE WAVE
DYNA, OCP Test, and Program Sequences.
When you edit the setting, the display will blink to let you know which
setting is to be edited or has been selected.
In remote state, the keys on the front panel have no effect. Only remote controller can
program the Load. The display of module will show the present input voltage and current
readings or the last display while local state is in effect. The display of the Module will show
REMOTE message.
When setting the load module level, the resolution of current, voltage,
resistance and slew rate will be different from the entered values. The
displayed or stored value for setting is the actual value of D/A
programmed in the load module. The current, voltage and slew rate
setting will be degraded when low values are entered. The resistance
setting will be degraded when higher values are entered.