520PSD01  Power supply 520PSD01

The power supply unit 520PSD01 has the following characteristics and functions:
– Cooling by natural convection
– Electronic power limitation on outputs
– Short-circuit proof outputs
– Over-voltage protection of the input
– Reverse voltage protection of the input
– No potential isolation between the input and the outputs
– LEDs for monitoring the output voltages
In interaction with the 520CMD01 the input voltage (24 VDC)
is passed through to the I/O modules. During power-on the
520CMD01 is switching the 24 V output voltage active for the
I/O modules.

520CMD01

The power supply unit 520PSD01 generates or switches the voltages 24 VDC, ±15 VDC and 5 VDC for the RTU520 system. The
output power is sufficient to supply RTU520 with up to 16 I/O modules.

The communication unit provides the following interfaces:
• Communication Port 1 (CP1): a serial interface
according RS232C with RJ45 connector.
• Communication Port 2 and 3 (CP2 & CP3): serial
interfaces according RS485 with RJ45 connector.
• Ethernet interface (E1): 10/100BaseT with RJ45
connector.
• Interface X1 for power supply to the power supply unit
520PSD01.
• Interface X2 for communication unit with the RTU520 I/
O modules.
• USB 2.0 device interface for diagnosis and
maintenance purposes.
• WRB I/O bus interface for local communication with
the I/O-modules