Documentation for
KL2602 and KL2622
Two-channel Relay Output Terminals for 230 V
Version: 1.4
/ 30 VDC
AC
Date: 2013-03-20
Table of contents
Table of contents
1 Foreword 1
1.1 Notes on the documentation 1
1.2 Safety Instructions 2
2 Product overview 3
2.1 Functional description 3
2.2 Technical data 4
2.3 The correct application of relay terminals 5
2.4 ATEX - Special conditions 6
3 Annex 7
3.1 Support and Service 7
KL2602 und KL2622
Foreword
1 Foreword
1.1 Notes on the documentation
This description is only intended for the use of trained specialists in control and automation engineering
who are familiar with the applicable national standards. It is essential that the following notes and
explanations are followed when installing and commissioning these components.
The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
1.1.1 Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development. For that reason the documentation is not in every case checked for consistency with
performance data, standards or other characteristics. In the event that it contains technical or editorial
errors, we retain the right to make alterations at any time and without warning. No claims for the
modification of products that have already been supplied may be made on the basis of the data, diagrams
and descriptions in this documentation.
1.1.2 Delivery conditions
In addition, the general delivery conditions of the company Beckhoff Automation GmbH apply.
1.1.3 Trademarks
Beckhoff
trademarks of and licensed by Beckhoff Automation GmbH. Other designations used in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the
owners.
1.1.4 Patent Pending
The TwinCAT Technology is covered, including but not limited to the following patent applications and
patents: EP0851348, US6167425 with corresponding applications or registrations in various other
countries.
1.1.5 Copyright
© Beckhoff Automation GmbH.
The reproduction, distribution and utilization of this document as well as the communication of its contents
to others without express authorization are prohibited. Offenders will be held liable for the payment of
damages. All rights reserved in the event of the grant of a patent, utility model or design.
®
, TwinCAT®, EtherCAT®, Safety over EtherCAT®, TwinSAFE®, XFC® and XTS® are registered
KL2602 and KL2622 1
Foreword
1.2 Safety Instructions
1.2.1 State at Delivery
All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.
1.2.2 Description of safety symbols
The following safety symbols are used in this documentation. They are intended to alert the reader to the
associated safety instructions.
Serious risk of injury!
DANGER
Failure to follow the safety instructions associated with this symbol directly endangers
the life and health of persons.
Risk of injury!
WARNING
CAUTION
Attention
Note
Failure to follow the safety instructions associated with this symbol endangers the life
and health of persons.
Danger for persons!
Failure to follow the safety instructions associated with this symbol may endanger
persons.
Danger for the environment or equipment
Failure to follow the safety instructions associated with this symbol may endanger the
environment or equipment.
Tip or pointer
This symbol indicates information that contributes to better understanding.
2 KL2602 and KL2622
Product overview
2 Product overview
2.1 Functional description
The KL2602 and KL2622 output terminals have two relays, each with a single contact, and can be used
to switch devices requiring mains power and operating at up to 230 V
shown by an LED.
• The relay contacts of the KL2602 are joined to the power contacts.
• The relay contacts of the KL2622 are potential-free, and are not joined to the power contacts. The
KL2622 only loops through the PE power contact.
LED display
The signal LEDs indicate the operational state of the associated terminal channel.
• On: Relay contact closed
• Off: Relay contact opened
Watchdog timer overflow
If no process data is transferred to the terminal from the Bus Coupler for 100 ms, the green LEDs go out,
and the relay contacts are opened.
Process data
The bit-width in the process image is 2 bits.
. The signal state of each relay is
AC
KL2602 and KL2622 3
Product overview
2.2 Technical data
Technical data KL2602 KL2622
Number of outputs 2 N/O contacts for power contact 2 N/O contacts (potential-free)
Contact material AgCdO
Switching voltage max. 250VAC / 30VDC
Switching current
max. 5 A
Switching capacity max.
with resistive load
Alternating voltage:
5 A 250 V
AC
1250 VA
Direct voltage:
Maximum switching current
with inductive load, cosϕ=0.4,
5 A 30 V
2 A 250 V
2 A 30 V
AC
DC
DC
150 W
L/R=7ms
Minimum permitted load
(approximate)
10 mA at 5 V
(after a current of approx. 100 mA (or greater) has been switched at
(as supplied)
DC
least once)
Reaction time at a rated load
Reaction time: max. 10 ms
Release time: max. 4 ms
Bounce time: max. 5 ms
Electrical isolation
500 V
(K-Bus/mains voltage)
rms
K-Bus current consumption 80 mA 85 mA
Bit width in process image 2 A
Service life
20,000,000 switching operations
Mechanical operating cycles
Service life
Electrical operating cycles
Permitted switching frequency
At least 100,000 switching operations on resistive loads at
DC
AC
5 A
5 A or
250 V
30 V
10 switching operations / minute
at maximum contact load
Contact resistance max. (new) < 30 mΩ
Insulation resistance (min). 100 MΩ at 500 VDC
Test voltage between open
750 V (1 minute between open contacts)
contacts
Configuration no address or configuration settings
Weight approx. 85 g approx. 80 g
Permissible
ambient
temperature
range
during
operation
during
-25°C ... +60°C in operation
0°C ... +55°C (according to cULus) for Canada and USA
0°C ... +55°C (according to ATEX, see special conditions)
-40°C... +85°C
storage
Relative humidity
95 % no condensation
Vibration / shock resistance conforms to EN 60068-2-6 / EN 60068-2-27
EMC resistance burst / ESD conforms to EN 61000-6-2 / EN 61000-6-4
Installation position any
Protection class IP20
Approvals CE, cULus, ATEX, GL
4 KL2602 and KL2622
Product overview
2.3 The correct application of relay terminals
Risk of electric shock and damage of device!
WARNING
Note
Bring the bus terminal system into a safe, powered down state
before starting installation, disassembly or wiring of the Bus Terminals!
Analyze operation conditions
It is extremely important to observe the technical specifications if fault-free operation is
to be guaranteed. Any time that the stated parameters are exceeded, damage ranging
from premature contact ageing up to fused contacts can result.
If relays are to be used in a control system the expected operating conditions must be
analyzed with great care. Switching capacity, service life (operating cycles) and the
number of switches per minute must be considered.
Appropriate protective circuits must be used to protect the relay contacts from
excessive voltage peaks such as can occur when switching inductive loads
(contactors, motors etc.). This allows switching frequencies nearly equal to those
appropriate to resistive loads to be achieved. Arcing time when switching DC loads are
significantly longer than those for comparable AC voltages (zero crossing); material
flow can result.
If the terminal is used to change the direction of inductive loads, adequate dead-times
during the switch-over must be provided, in order to avoid temporary short-circuits.
100
50
30
20
10
Service live (x10.000)
5
3
~
~
0.3 0.5 1.0 2.0 3.0 5.0
Switching current (A)
Attend the maximum values
3
0
V
D
C
/
2
5
0
V
A
C
,
3
0
V
D
C
/
2
r
e
s
i
s
t
i
v
e
l
5
0
V
A
C
c
o
a
d
o
s
ϕ
=
0
.
4
It is the maximum values that are to be expected that are critical to selection of the
Attention
KL2602 and KL2622 5
right terminal rather than the technical figures for normal operation!
Product overview
2.4 ATEX - Special conditions
Observe the special conditions for the intended use of
Beckhoff fieldbus components in potentially explosive areas (directive 94/9/EU)!
WARNING
• The certified components are to be installed in a suitable housing that
guarantees a protection class of at least IP54 in accordance with EN 60529!
The environmental conditions during use are thereby to be taken into account!
• If the temperatures during rated operation are higher than 70°C at the feed-in
points of cables, lines or pipes, or higher than 80°C at the wire branching
points, then cables must be selected whose temperature data correspond to
the actual measured temperature values!
• Observe the permissible ambient temperature range of 0 - 55°C for the use of
Beckhoff fieldbus components in potentially explosive areas!
• Measures must be taken to protect against the rated operating voltage being
exceeded by more than 40% due to short-term interference voltages!
• The individual terminals may only be unplugged or removed from the Bus
Terminal system if the supply voltage has been switched off or if a nonexplosive atmosphere is ensured!
• The connections of the certified components may only be connected or
disconnected if the supply voltage has been switched off or if a non-explosive
atmosphere is ensured!
• The fuses of the KL92xx power feed terminals may only be exchanged if the
supply voltage has been switched off or if a non-explosive atmosphere is
ensured!
• Address selectors and ID switches may only be adjusted if the supply voltage
has been switched off or if a non-explosive atmosphere is ensured!
Operation of the Bus Terminal System in potentially explosive areas (ATEX)!
Note
Pay also attention to the continuative documentation
Notes about operation of the Bus Terminal System in potentially explosive areas
(ATEX)
that is available in the download area
http://www.beckhoff.com
!
of the Beckhoff homepage
6 KL2602 and KL2622
Appendix
3 Appendix
3.1 Support and Service
Beckhoff and their partners around the world offer comprehensive support and service, making available
fast and competent assistance with all questions related to Beckhoff products and system solutions.
3.1.1 Beckhoff's branch offices and representatives
Please contact your Beckhoff branch office or representative for local support and service on Beckhoff
products!
The addresses of Beckhoff's branch offices and representatives round the world can be found on her
internet pages: http://www.beckhoff.com
You will also find further documentation for Beckhoff components there.
3.1.2 Beckhoff Headquarters
Beckhoff Automation GmbH
Eiserstr. 5
33415 Verl
Germany
phone: + 49 (0) 5246/963-0
fax: + 49 (0) 5246/963-198
e-mail: info@beckhoff.com
web: www.beckhoff.com
Beckhoff Support
Support offers you comprehensive technical assistance, helping you no only with the application of
individual Beckhoff products, but also with other, wide-ranging services:
• support
• design, programming and commissioning of complex automation systems
• and extensive training program for Beckhoff system components
hotline: + 49 (0) 5246/963-157
fax: + 49 (0) 5246/963-9157
e-mail: support@beckhoff.com
Beckhoff Service
The Beckhoff Service Center supports you in all matters of after-sales service:
• on-site service
• repair service
•
spare parts service
• hotline service
hotline: + 49 (0) 5246/963-460
fax: + 49 (0) 5246/963-479
e-mail: service@beckhoff.com
KL2602 and KL2622 7
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