Overview of the SPI 3
ASCII | 3964R | RK512
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Mounting and connecting up the SPI 3
Attaching the SPI 3 to the top-hat rail
– Hook the SPI 3 onto the top-hat rail and snap it into place.
In order to remove the SPI 3 from the top-hat rail, pull out the orange locking clip with
a suitable tool.
Connecting up the power feed
Danger!
Incorrect grounding of the SPI 3 can injure personnel and damage equipment.
Make sure that the SPI 3 is correctly grounded.
Warning!
Although the SPI 3 is protected against polarity reversal, connecting
up the power feed with incorrect polarity for extended periods can damage the
device. Make sure that the power feed is connected with correct polarity.
– Connect the cables for 24 V power feed, ground and protective ground to the corre-
sponding screw terminals 24 V, GND and PE ( ).
Connecting up to a fieldbus device with serial interface
Note!
To ensure that the SPI 3 functions without errors, you should use a screened ca-
ble for connecting to the serial fieldbus device.
– Ensure that the Sub-D connector for the serial interface uses the pin assignments
shown in »Technical specifications« on page 26 (connect the cable screen to the case
of the sub-D connector).
– Attach the sub-D connector for the serial interface to the serial interface socket on
the SPI 3.
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