ABB EDS500 Series Operating Instruction page 2

Pin allocation serial interface RS-232 (RJ-12)
RS-232
Pin Signal Direction Pin Signal Direction
1 DCD Output
2 CTS Output
3 RTS Input
6 1
4 GND -
5 RxD Output
6 TxD Input
Pin allocation serial interface RS-485 half duplex
(RJ-12)
RS-485 half duplex / 2-wire
Pin Signal
1
2
3 B (-)
6 1
4 GND
5
6 A (+)
Pin allocation serial interface RS-485 full duplex
(RJ-12)
RS-485 full duplex / 4-wire
Pin Signal
1
2 B (-)
3 B (-)
6 1
4 GND
5 A (+)
6 A (+)
Power connector (X1 and X3)
The EDS500 devices are equipped with a wide range
power supply for voltages between 24 and 60 Volts DC
(power consumption see device label). The connector
is a 4-pin Phoenix plug with screw terminals.
Devices supporting Power over Ethernet (PoE) do have
an additional 4-pin Phoenix power plug. The input
voltage depends on the Rubrik of the device.
Pin allocation power supply (X1)
Pin Signal
1 24-60 V DC
1 2 3 4
2 Shield connected to functional earth
(internally wired to pin 4)
3 GND
4 Shield connected to functional earth
(internally wired to pin 2)
Pin allocation power supply PoE (X3)
RS-232 PC SUB-D9
1 DCD Input
8 CTS Input
7 RTS Output
5 GND -
2 RxD Input
3 TxD Output
Direction
bi-directional
-
bi-directional
Extension interface (EXT)
The plug of the proprietary expansion bus is designed
as USB type B but uses a manufacturer specific
protocol.
Direction
The configuration parameters are stored directly
on the device. In addition, a configuration stick can
be connected to the expansion bus to save data
Input
externally, in example to exchange defective devices
Output
easily.
-
Input
Output
Alarm relay (X2)
The EDS500 devices are equipped with a potential free
alarm output (relay with isolated switchover contact).
This output corresponds to a device alarm and is
activated when the device looses the power supply
or the alarm LED is constantly on. The reason for the
signaling of an alarm can be referenced in the system
alarm table (EDS500 Manual - Part 2: Alarms and alarm
configuration).
Pin allocation alarm output (X2)
Pin Signal
1 R0001: 51-57 V DC
1 2 3 4
R0002: 24-60 V DC
2 Shield connected to functional earth
(internally wired to pin 4)
3 GND
4 Shield connected to functional earth
(internally wired to pin 2)
A D V I C E
Due to the internal overvoltage protection,
interrupt any connection to ground of the device
for the time of the measurement before you carry
out isolation measurements. This includes the
earthing of the hat rail as well as all shields of all
transmission lines and supply feedings. RJ-12 plugs
or RJ-45 plugs can also establish earthing via the
shield.
A D V I C E
Danger of damaging the device
Do not connect any USB devices!
Pin Signal
1 2 3 4
1 & 2 Normal state
1 & 3 Alarm state
4 Common contact (connected to 1)
W A R N I N G
The relay is designed for switching only safety extra
low voltages.