User manual

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5.11 SAFE START AND AUTO-RESTART MODES
5.12 OVER TEMPERATURE PROTECTION (OTP)
5.13 LAST SETTING MEMOR
5.14 SERIES OPERATION
When turning on the power supply AC On/Off, it can start to its last setting of Output Voltage and
Current limit with the output enabled (Auto-restart) or start with the output disabled (Safe mode).
Press and hold the OUT button to select between Safe start and Auto-restart modes. The VOLTAGE
display will continuously cycle between "SAF" and "AU7” every 3 seconds. Releasing OUT
pushbutton while one of the modes is displayed, selects that mode. The default setting at shipment
is Safe mode.
In this mode, the power supply restores its last operation setting. Upon start-up, the output is
enabled or disabled according to its last setting.
In this mode, the power supply restores its last operation setting and sets the Output to Off state. At
start-up, the output is disabled and the output voltage and current are zero. To enable the output and
restore the last output voltage and current limit values, momentarily press OUT button.
The OTP circuit shuts down the power supply before the internal components can exceed their safe
internal operating temperature. When an OTP shutdown occurs, the display shows "O7P" and the
ALARM LED blinks.
Resetting the OTP circuit can be automatic (non-latched) or manual (latched) depending on the
Safe orAutomatic restart mode.
In Safe start mode, the power supply stays off after the over temperature
condition has been removed. The display continue to shows "O7P" and the ALARM LED
continues to blink. To reset the OTP circuit, press OUT button (or send OUT ON command via the
serial port).
InAuto-restart mode , the power supply recovers to it's last setting
automatically when the over temperature condition is removed.
The power supply is equipped with Last Setting Memory, which stores power supply parameters at
eachAC turn-off sequence.
1. OUT On or Off
2. Output voltage setting (PV setting)
3. Output current limit (PC setting)
4. OVP setting
5. UVL setting
6. FOLD setting
7. Start-up mode (Safe orAuto-restart)
8. Remote/Local:If the last setting was Local Lockout (latched mode), the supply will return to
Remote mode (non-latched).
9.Address setting
10. Baud rate
11. Locked /Unlocked front panel (LFP/UFP)
(Items 8, 9, 10 are related to Remote digital control operation and explained in chapter 7)
12. Master/Slave setting
Power supplies of the SAME MODEL can be connected in series to obtain increased output voltage.
Split connection of the power supplies gives positive and negative output voltage.
5.11.1 Automatic start mode
5.11.2 Safe start mode
1. Safe start mode:
2. Auto-restart mode:
Y
STORED PARAMETERS: