User manual

GMC-I Messtechnik GmbH 31
4 Local Operation
The local operation of the load has been briefly introduced in Chapter 2 „Functions and Features“. In this chapter, it will be explained in
details with examples.
4.1 Local Control
If it is needed to control the load from the front panel, the load must stay in the local control status. The load enters into local control
status once it is powered on, and preset parameters saved in EEPROM location 0 will be recalled automatically.
Under remote control status, all operations on front panel keypad and knobs become invalid (except
key + key). When the
load receives a remote command (SYST:REM) via RS232 or GPIB, the remote control goes into effect and REM indicator is turned on.
Under remote control status, all operations on electronic load are controlled by remote controller. The electronic load will return to local
control after receiving the return command (SYST:LOCal).
Or you can return the electronic load to local control by pressing key + key.
4.2 Main Operation on the Front Panel
• Connecting to the power supply
• Turning the Input On/Off
•CC mode
• CV mode
•CR mode
•CP mode
• Short circuit operation
• Continuous transient operation
• Pulsed transient operation
• Toggled transient operation
• List operation
• Battery discharge operation
• Saving and recalling parameters
• Clear protection settings
• Error messages
• Triggered operation
•Main menu
4.3 Connecting to the Power Supply
Connect the positive pole of the power supply to the INPUT + terminal, and connect the negative pole of the power supply to the
INPUT - terminal. If the input is connected reversely, the RV protection status of the load will become effective. In this case, disconnect
the power supply from the load and then make the correct connections. After the power supply is correctly connected to the load,
press key + key to clear the RV protection status or restart the load. The relevant details will be described in “Clearing Pro-
tection Settings”.
4.4 Turning the Input On/Off
Press key to turn on or turn off the input.
4.5 Basic Operation
The operating procedures for basic tests are shown below:
1 Press key to enter into mode selection and parameter setting menu.
2 Use ▲ and ▼ keys to select one operating mode.
3 Use Entry keys, or use the knob together with ◄ ► keys to input set value. key may be used to clear the values entered at
present, or exit mode selection and parameter setting menu.
4 Press the Enter key to confirm and exit mode selection and parameter setting menu.
5 Press the key to turn on the load’s input.