HEIDENHAIN EIB 741, Operating Instructions Manual, Page: 22 / 135

en
4 Installation
4.1 Overview
This chapter contains all the information necessary for
installing the device.
The following steps must be performed only by
qualified personnel.
Further information: "Personnel qualification",
Page 21
The safety of any system incorporating the
use of this product is the responsibility of the
operator of the system.
NOTICE
Damage to the product and encoders!
Engaging or disengaging live connecting elements can
cause damage to the product or encoder.
Do not engage or disengage the cable between the
encoder and the product while under power
4.2 Product overview
Front panel
See "A" on the front fold-out page.
1 LEDs for displaying operating and error
states of the product
X11 to X14 Four 15-pin D-sub inputs for encoders
with
1 V
PP
interfaces
11 µA
PP
interfaces upon request
EnDat interfaces
Rear panel
EIB 741: See "B" on the front fold-out page.
EIB 742: See "C" on the front fold-out page.
EIB 749: See "D" on the front fold-out page.
2 EIB 741 and EIB 749 : Power switch
3 Internal reset button
4 Fan of the product
5 EIB 742 : Functional ground connection
6 EIB 749 : 2-pin connection for external
remote reset switch
X4 8-pin Ethernet connection RJ-45 for the
connection to a PC
X5 Not assigned
X6 Power connector
EIB 741 and 749 : AC 100 V to 240 V
EIB 742 : 24 V DC
X31 9-pin trigger input RS-485
X32 9-pin trigger output RS-485
4.3 Connecting the line voltage
EIB 741 and EIB 749
WARNING
Risk of electric shock!
Improper grounding of electrical devices may result in
serious personal injury or death by electric shock.
Always use 3-wire power cables
Make sure the ground wire is correctly connected to
the ground of the building's electrical installations
WARNING
Fire hazard due to wrong power cable!
Use of a power cable that does not meet the
requirements of the mounting location may cause a fire
hazard.
Use only a power cable that meets at least the
national requirements of the respective country in
which the product is mounted
Use the supplied power cable to connect the power
connection X6 to a grounded power outlet
For information about the location of the power connection
on the rear panel, see "Rear panel", Page 24.
For pin layout of X6, see "P", Page 136.
EIB 742
NOTICE
Damage to the product caused by improper external
power supply unit
Use of an improper external power supply unit may
cause damage to the product.
Use only an external power supply unit that meets the
following specifications:
•
Rated voltage: DC 24 V (–15 % to +20 %)
•
Output current: max. 50 A
•
Electrical separation through the use of SELV or
PELV circuit
•
Connection of the product to functional ground
The product is supplied with power via an external power
supply unit. The external power supply unit is not included
in delivery.
Connect the cable of the external power supply unit to
the included 24 V connector
Connect the 4-pin connector to the power connection
X6
Connect the external power supply unit to the power
outlet
For information about the location of the power connection
on the rear panel, see "Rear panel", Page 24.
For pin layout of X6, see "Q", Page 136.
24
HEIDENHAIN | EIB 700 | 03/2022