Datasheet

3.Output Voltage TRIM
(1)Connecting an external DC source between PV & -S on CN1 or CN2, and that is shown in Fig. 3.1.+S & +V, -S & -V also need to be connected
(2)Adjustment of output voltage is possible between 20~110%(Typ.) of the rated output which is shown in Fig. 3.2. Reducing output current is required when the
output voltage is trimmed up.
2.Alarm Signal Output
(1)Alarm signal is sent out through "P OK" & "P OK GND" and P OK2 & P OK GND2 pins.
(2)An external voltage source is required for this function.
(3)Table 2.1 explain the alarm function built-in the power supply.
Fig. 2.2 Internal circuit of P OK (Relay, total is 10W)
Fig. 3.1 Add on 1~6V external voltage
Fig. 3.2 Output voltage trimming
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-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-Power Fail
High or open
(External applied voltage, 500mA max.)
High or open
(External applied voltage, 10mA max.)
R
V
Fig. 2.3 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 2.1 Explanation of alarm
1 2 3 4 5 6
V
Vout
100
120
40
60
80
20
EXTERNAL VOLTAGE (DC)
Non-Linear
OVP >120%
40 60 80 100 120
V
100
40
60
80
20
OUTPUT VOLTAGE (%)
20
+S
+V
LOAD
-V
-S
PV
1~6V
-S
Fil e Name:RSP- 3000-SP EC 201 4-08-05
3000W Single Output Power Supply
RSP - 30 0 0
series