Switched Mode Power Supply
Operating manual
PAP800UL
Perämiehenkatu 6, FIN 24100 Salo, Tel. +358 2 777 290, Fax +358 2 777 2918, [email protected], www.powerfinn.fi
Pin configuration
1. Ground
2. Current control input
3. Voltage control input
4. Measured current value
5. Measured voltage value
6. +5V (max 20mA) output
Pin configuration of the modular connector J1 (Option AI)
Controlling the analog card (Option AI)
All control voltages must be between 0 and +5V, Higher voltages are not allowed. The control logic is positive, so
that a +5V control voltage gives a maximum value from the power supply, while 0V means minimum output. As
soon the control connector is unplugged from the modular connector, the power supply is reset to the minimum
output values.
The measured values can be read from the measurement signals. The measured values are scaled equal to the
target values. If the power supply is set to the voltage reference, the measured value must be equal to the target.
The same counts for the current control and its measured value. Measured signals (both together) can be loaded
with max 20mA; otherwise proper operation cannot be guaranteed.
The modular connector is isolated from the input, output and enclosure of the power supply. This enables the
possibility to parallel or series connect several power supplies maintaining equal voltages. The number of
connected devices is not limited. The 500V insulation voltage may, however, not be exceeded. This manual
cannot be applied in case the connector of the analog card differs from a modular connector (9-pin D-connector).
In that case it is an incompatible analog controlled power supply.
Connecting example using the in5Vdc supply and external potentiometers.The +5V can be used as a
supply for external circuits. The circuit given to the left, lets the power supply operate as a potentiometer controlled
device. It is important to keep in mind that the +5V output may not be loaded more than 20mA, otherwise proper
operation cannot be guaranteed.
6
Analog input
modular connector
1
6 5 4 3 2