Start-Up Procedure; Dimensioned Drawing; Connection Diagram - Hengstler Rx70Tp Installationsanleitung

Installation instructions
Absolute Shaft Encoder
RX70TPRX /RX 71TP
with PROFIBUS-DP

Start-up procedure

Bus connection of the encoder
Data are transferred according to RS 485.
The EX-cable's line parameters are as follows (standard values):
Working capacitance (pF/m)
Inductance (mH/km)
Wire resistance (Ω/km)
Core diameter (mm)
2
Core cross section (mm )
The EX connecting cable does not comply with PROFIBUS Line type A spe-
cification (see EN 50170).
Accordingly, the Baud rate and the length of the encoder drop line must
be reduced.
We recommend 1.5 MHz maximum Baud rate and 5 m maximum drop line
length.
The bus structure permits to connect and disconnect stations without inverse
operation, or to start up the system step by step.
On system start-up, the transmission rate (Baud rate) is fixed uniformly for
all bus devices by the SPS (Master).

Connection diagram

No. Signal
1rs B OUT
gr A OUT
1ge B IN
1gn A IN
br VCC1
1bl GND1
1br( 0,5) 0 V
ws( 0,5) 10 ... 30 VDC
Screen Screen
Terminal screw
Identification code (see identification plate)
Resolution
0010 10 Bit (S)
0012 12 Bit (S)
0013 13 Bit (S)
0014 14 Bit (S)
RX 70 = Alu
1212 24 Bit (M)
RX 71 = Stainless steel
1213 25 Bit (M)
1214 26 Bit (M)
R R X X 7 7 _ _ T T P P /
Version
P Absolute/Programmable
1)
S = Singleturn, M = Multiturn with 4,096 (12 Bit) revolutions
Page 6/8
120
0.65
< 38
0.8
0.5
Description
Receive/Transmit Data-Positive (B)
Receive/Transmit Data-Negative (A)
Receive/Transmit Data-Positive (B)
Receive/Transmit Data-Negative (A)
+5 V Signal output (P5V)
Data Ground (M5V)
Supply voltage Ground (M24)
Supply voltage +U (P24)
B
Cable screen connected to housing
for additional connection of an earth
conductor
1)
Mounting
K Clamping
flange
E E K K
•
Supply
Protection class
voltage
4 IP 64
E 10 ... 30 VDC
Subject to technical modifications and improvements serving the progress of our devices.
Setting the device address
The DIP switches of the pressure-proofly encapsulated EX-encoder RX70 are
not accessible. Hence, only a DPM2 device (Class 2 Master) can set the device
address via the bus!
The device address may be set in a range from 1 up to 125.
Standard setting delivered from factory:
D D e e v v i i c c e e a a d d d d r r e e s s s s = = 3 3 2 2

Dimensioned drawing

Dimensions in mm
Shaft
2 10 mm
4 4 2 2 T T
Output
T RS 485
. .
Connection
A PVC cable axial
A A D D
Interface
D PROFIBUS-DP
Code
B Binary
B B