Functions and Features
5. Rotate the knob to adjust the delay time Delay and press [Enter] key to
confirm.
6. Press [Esc] to exit the protection menu setting.
Clear Over-Voltage Protection
To clear the over-voltage and return to normal operation, firstly remove the con-
ditions that caused the protection fault. Press [Esc] key (or send the command
PROTection:CLEar) to clear the protection status. The “Over Voltage Protect”
displayed in front panel is cleared and the instrument exits OVP status.
4.6.3 Set Over-Current Protection
Over-current protection function allows the user to enable the protection and set
a over-current limit (Level) and delay time (Delay). This function prevents the
output current from being higher than the limited output current and protects the
connected DUT so it this is not over-current and possibly damaged due to an ex-
cessive current.
An over-current protection will occur if:
• Enable OCP;
• The output current value is greater than the set current protection point
Level and the period is greater than the set protection delay time Delay.
Delay time Delay — You can specify an OCP delay to prevent momentary
output settings, DUT and status changes from tripping the over-current pro-
tection. In most cases these momentary conditions would not be considered
an over-current protection fault, and having an OCP condition disable the
output when they occur would be a nuisance. Specifying an OCP delay lets
the OCP circuit ignore these momentary changes during the specified delay
period. Once the OCP delay time has expired and the over-current condition
persists, the output will shut down.
When over-current protection occurs, the instrument responds as follows:
• Instrument output is off;
• The buzzer sounds intermittently;
• The interface displays “Over Current Protect” and flashes;
• Status register, the OC status bit is set to 1.
Enable OCP
1. Press [Shift]+[Esc] (Protect) to enter Protect menu interface.
Copyright © Itech Electronic Co., Ltd.
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