Instructions

4.Alarm Signal Output
※ Alarm signal is sent out through "P OK" & "P OK GND" and P OK2 & P OK GND2 pins on CN3. Please acknowledge an external voltage source is required for this function.
Fig. 4.1 Internal circuit of P OK (Relay, total is 10W)
External voltage and R
(The max. sink is 500mA and 20V)
P OK GND
P OK
Function
P OK
The signal is "Low" when the power supply is above
80% of the rated output voltage, or, say, Power OK
Low
(0.5V max at 500mA)
Low
(0.5V max at 10mA)
Description Output of alarm(P OK, Relay Contact)
Output of alarm(P OK2, TTL Signal)
The signal turns to be "High" when the power supply
is under 80% of the rated output voltage, or, say,
Power Fail
High or open
(External applied voltage, 500mA max.)
High or open
(External applied voltage, 10mA max.)
R
V
Fig. 4.2 Internal circuit of P OK2 (Open collector method)
External voltage and R
(The max. sink is 10mA and 30V)
P OK GND2
P OK2
R
V
0.1uF
Table 4.1 Explanation of alarm
File Name:RSP-2400-SPEC 2020-09-29
2400W Power Supply with Single Output
RSP-2400 series
◎ By factory default, OLP(PIN9) and OL-SD(PIN10)
on CN3 are shorted by connector when shipped.
CN3
PIN4 P OK2
PIN2 P OK
PIN3 P OK GND2
PIN1 P OK GND