Baumer GK473 - Manual (Page 5)

Manual_GK473_DeviceNet_EN.doc 5/31 Baumer IVO GmbH & Co. KG
04.05.11 Villingen-Schwenningen, Germany
4 Commissioning
4.1 Mechanical mounting
The gateway provides a small housing for DIN rail mount. It can easily be opened using a screwdriver and
partially pulled out in order to set user ID (MAC ID), Baudrate and bus termination.
• Grid width 22,5 mm, height approx. 100 mm, depth approx. 110 mm
• For mounting onto 35 mm DIN rails
For mounting onto the DIN rail slide the gateway at its rear hinges onto the DIN rail and then press down to
lock.
4.2 Electrical connection
4.2.1 Electrical commissioning
• Do not carry out any electrical modifications at the gateway.
• Do not carry out any wiring work when the gateway is live.
• Make sure that the entire equipment is installed in line with EMC requirements. Ambient installation and
wiring affect the electromagnetic compatibility of the gateway. Install gateway and supply cables in
separate rooms or far away from cables with high interference emission (frequency converters, protections,
etc).
• Provide separate supply voltage for the gateway where working with consumers with high interference
emission.
• Connect the gateway to protective earth (PE) conductor using shielded cable. The braided shield must be
connected to cable gland or plug. Ideally, aim at a bilateral connection to protective earth (PE), i.e. housing
via mechanical assembly and cable shield via downstream devices. In case of earth loop problems, earth
on one side only as a minimum requirement.
Failure to observe these instructions may result in malfunctions, material damage or personal injury.
4.2.2 Supply voltage connection
Gateway and SPA are connected to power supply utilizing screw terminals 5 (GNDB) and 6 (UB) or 7
(GNDB) and 8 (UB). Terminals 5 and 7 as well as 6 and 8 are internally connected to each other for looping
the operating voltage further to other consumers (for example to the SPA).
4.2.3 Shield connection / functional earth
Connection of protective earth is at terminal 1 which at the same time serves for shield connection of the
RS485 bus. Pin 1 and the housing of the 9-pin D-Sub connector (DeviceNet) are connected to each other. PE
(protective earth) connection is additionally carried out by DIN rail mount. For this purpose the DIN rail must
be connected to functional earth utilizing low-impedance.
To prevent a bridge from the internal drain circuit to earth the DeviceNet Drain connection respectively the
DeviceNet cable shield must not be connected to the SUB-D connector housing.