Power Failure Protection; Over Temperature Protection) - Matsusada Precision VOL Series Instruction Manual

４-７ Power Failure Protection
This unit integrates a circuit to stop the output when it is recovered from power failure.
During the operation, when recovered from power failure, unit does not resume the output.
Turn off OUTPUT ON/OFF switch and back it on to resume the output.
When power failure protection is not in use, turn pin 8 of function setting switch to ON.
Then, when recovered from power failure, or when turn on POWER ON/OFF switch, power supply
shall get back to the status when power failure is happened.
(If power is failure when OUTPUT ON/OFF is ON, then the unit resume the output automatically. When
power is failure when OFF, power supply keep off. )
(* It is set to OFF when the product is shipped from the factory.)
４-８ O.T.P(Over Temperature Protection)
When the temperature of power supply inside get high due that environmental temperature is high or
when vent holes are closed, OTP become effective, and cut off the output.
When OTP is effective display shows "OtP/E02" and cut off the output(OUTPUT LED light off)
Press the OUTPUT ON/OFF switch or turn OFF the LS(remote switch) to reset the OTP status(display
shall return to previous display from "OtP/E02".)
Turn on OUTPUT ON/OFF switch(after temperature of inside the power supply get down) to resume
the output or turn ON the LS (remote switch).(OUTPUT LED light on)
SW1
8 7 6 5 4 3 2 1
ON
Switch for power failure protection
OTP Error
23
４ Normal Operation
MATSUSADA Precision Inc.