Hengstler GmbH
Postfach 11 51
Tel. 07424 – 890
D-78550 Aldingen
Fax 07424 – 89370
mail: [email protected]
http: //www.hengstler.de
Installation instructions
Absolute Shaft Encoder
RX70TPRX /RX 71TP
with PROFIBUS-DP
Page 5/8
Introduction
These installation instructions are provided for the connection and starting
procedure of your shaft encoder.
This encoder is EX-tested and licensed. On request, we will be pleased to
send you the respective certificate of conformity PTB00 ATEX 1107
For information concerning software and set parameter please refer to the
Technical Manuals with following item numbers:
2 543 037 — in German
2 543 045 — in English.
You can obtain these manuals by order or by Internet-download from our
homepage www.hengstler.de.
You will get further informations on request.
Additionally available: GSD file ”HENx00B7.GSD” with item number
1 543 062 or by download from our homepage.
This sign marks paragraphs particularly to be observed to assure
proper use and to avoid risks.
Safety and Operating Instructions
• The absolute shaft encoders of the type RX70TP model series are quality
products manufactured in accordance with established electrical engineering
standards.
The units have been delivered from the factory in perfect conformance to
safety regulations.
To maintain this condition and to ensure trouble-free operation, please ob-
serve the technical specifications of this document.
• Installation and mounting may only be performed by an electrotechnical
expert!
• The units may only be operated within the limits specified by the technical
data.
•
Maximum operating voltages must not be exceeded!
The units are designed complying with DIN EN 61010-part 1, protection class III.
To prevent dangerous structure-borne currents, the equipment has to be run
on safety extra-low voltage (SELV) and must be in an area of equipotential
bonding.
Please use an external fuse for protection (see Electrical Data).
• Fields of application: industrial processes and controls.
Overvoltage at the connecting terminals must be limited to overvoltage-
class-II values.
• Please avoid shocks to the housing – especially to the encoder shaft – and
axial or radial overload to the encoder shaft.
• Maximum accuracy and durability of our shaft encoders are only granted
when using suitable couplings.
• The high-quality EMC-specifications are only valid together with standard-
type cables and plugs.
When using screened cables, the screen must bro-
adly be connected with ground on both ends. Likewise, the voltage-supply
cables should entirely be screened. If this is not possible you will have to
take appropriate filtering measures.
• Installation environment and wiring are influential on the encoder's EMC:
Thus the installer must secure EMC of the whole facility (device).
• In electrostaticly threatened areas please take care for neat ESD-protection
of plug and connecting cable during installation work.
•
At the beginning and at the end of each segment, the DP bus must be ter-
minated by an active bus termination!
For trouble-free operation, the voltage supply of both bus terminations
must always be ensured.
• The connecting cable is only suitable for fixed installation (no haulage operating).
The facility installer is responsible for cable selection with consideration of
EX-rules.
•
The pressure-proofly encapsulated encoder housing must not be opened.
General design
as per EN 60010-1 , protection class III,
contamination level 2, overvoltage class II
Supply voltage (SELV)10 …30 VDC with pole protection
Intrinsic power consumption max.; 230 mA
external fuse
T 0.25 A
EMC
1)
Noise emission as per EN 50081-2
Noise immunity as per EN 50082-2
Interface
RS 485
Protocol
PROFIBUS-DP
with Encoder profile class C2 (can be parameterised)
Baud rate
automatically adjusted in a range
from 9.6 KBit/s up to 12 MBit/s
Device address
adjustable by DIP switches or bus (by DPM2 device
2)
)
Physical resolution
3)
1,024 steps (10 Bit) Singleturn
4,096 steps (12 Bit) Singleturn
8,192 steps (13 Bit) Singleturn
16,384 steps (14 Bit) Singleturn
4,096 steps/4,096 turns (24 Bit) Multiturn
8,192 steps/4,096 turns (25 Bit) Multiturn
16,384 steps/4,096 turns (26 Bit)Multiturn
Linearity
±
1
/
2
LSB (± 1 LSB with resolution13, 14, 25, 26 Bit)
Type of code
Binary
Code sequence
programmable (standard: cw)
Item No. 2 539 042, 3070901HO
Subject to technical modifications and improvements serving the progress of our devices.
Enclosure: EC declaration of compliance RX 71T No. 2539906
Explosion protection classification
HENGSTLER EXPLOSION-PROOF shaft encoders are classified according to EX II 2 G EEx d
IIC T6/T4 (as per EN 50014 and EN 50018) Cerificate of conformity: PTB00 ATEX 1107
Shaft diameter
10 mm
Shaft load
radial 100 N, axial 40 N
Max. speed
10,000 RPM (EEx d IIC
T4
), 6,000 RPM (EEx d IIC
T6
)
Torque
≤
1 Ncm
Moment of inertia
20 gcm
2
approx.
Protection class
housing IP 65, bearing IP 64
1)
ambient temperature
-20°C...+60°C EEx d IIC T4
-10°C...+40°C EEx d IIC T6
Storage temperature
–25 … +85 °C
Vibration performance(IEC 68-2-6)100 m/s
2
( 10..60 Hz 1,5mm;60..2000 Hz 100m/s
2
)
Shock resistance (IEC 68-2-27)1,000 m/s
2
(6 ms)
Connection
cable axial or radial for fixed installation
Size
∅
70 mm
Mounting
clamping flange, bores 3 x M6
Weight
1,400 g approx.
Mechanical data
Electrical data
T6 = Maximum permissible surface temperature +85 °C
1)
T4 = Maximum permissible surface tempe130 °C
2)
1)
EEx d IIC
T6
: max. speed =6,000 RPM and ambient temperature -10..+40 °C
2)
EEx d IIC
T4
: max. speed =10,000 RPM and ambient temperature -20 ... +60 °C
1)
no standing water allowed at the shaft entrance or at the ball bearing
1)
With compliance with screening indications
2)
Class 2 master
3)
Real code-disc resolution; in addition, the desired resolution can be reduced by programming the encoder
