Lika XAC77, Руководство пользователя

Страница: 39 / 48

XC77 • XAC77 - Encoder ATEX
5.5 XAC77 with Profibus-DP interface (XAC77xx/xxxxxPB-...)
ATEX encoders with Profibus interface are based on the Hx58 FB series encoders, thus refer to the
transmission specifications described in the Hx58 FB Profibus manual; differences, if any, are
described below. Furthermore they need the
HS58_Vx.gsd (singleturn) or HM58_Vx.gsd
(multiturn) GSD file. User's manual and GSD file are available at the address:
www.lika.biz >
PRODUCTS > ROTARY ENCODERS > ABSOLUTE ENCODERS > PROFIBUS > Hx58 FB
).
Function Wires
+10Vdc +30Vdc Supply voltage
Red
0Vdc Supply voltage
White
Profibus B (bus input)
Blue
Profibus A (bus input)
White
Profibus B (bus output)
Green
Profibus A (bus output)
White
+5Vdc out for RT 1
Yellow
0Vdc out for RT 1
White
Profibus Shielding Shield
1 Both wires are supplied with a heat-shrink tubing protection; ensure it is always applied over
them if the bus termination resistor is not provided (Danger! Irreparable damages!).
WARNING

The node address must be set via software by the bus Master using the SAP55 service, for
further information refer to the “5.5.1 Setting the node address via BUS (SAP55 service)”
section on page 40. Node address = 125 is set by Lika Electronic by default; to set a different
address you must connect to the network one encoder at a time and then set the node ID,
otherwise an address conflict will occur. With /AABT order code (see datasheet), AA address is
preprogrammed via software and can be modified by the user.

Baud rate is set automatically by the bus Master.

Do not open the device for any setting!

The diagnostic LEDs are not available for this model.

Provided cable is not a Profibus certified cable, anyway it is fitted with bus input and output to
avoid installing stubs on the Profibus network.

If the encoder is either the first or the last in the transmission line (at the
ends of the network), a certified bus active termination resistor must be
installed; otherwise the following connection must be provided at
outputs. With /AABT order code (see datasheet), if T = 1, the termination
resistor is installed and active and cannot be deactivated (do not install
external resistors!).

To avoid irreparable damages to the encoder wires which are not used must be cut at different
lengths and insulated singularly.
MAN XC77_XAC77 I_E 2.16.odt 39 www.lika.it
www.lika.biz