INSTRUCTION MANUAL
ENGLISH
ISU R
INTEGRATED SAFETY UNIT
RAYTECH GMBH , OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND
Contents
1 Safety Precautions
3
2 Description
4
3 Advantages and Features
4
4 Schematic Diagram
5
5 Front Panel
6
6 Rear Panel
6
7 Interlock und Emergency Stop
7
7.1 Integrated Safety Unit and External Safety Interlock............................................................7
7.2 Indication on Front Panel.....................................................................................................8
8 Mains connection for ATOS
8
9 Contacts
9
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1 Safety Precautions
The following safety precautions must be observed during all phases of operation, service and
repair of this unit. By purchasing this equipment the purchaser assumes all liability for the
operation and use of this equipment. The intended use of the Integrated Safety unit, its design and
manufacture, is to be conducted within the precautions or other specific warnings located within
this manual. Failure to comply with these precautions and other specific warnings violates safety
standards of design, manufacture, and intended use. Raytech GmbH assumes no liability for the
operation and use of this equipment.
SAFE OPERATION:
Only qualified knowledgeable persons should be permitted or attempt to operate this test
equipment. All test personnel should fully familiarize themselves with the correct application and
operation of this and all test equipment prior to operation. Persons directly and indirectly engaged
in the operation of this test equipment should keep clear of all high voltage apparatus while
conducting tests and measurements.
WARNING !
BE CAREFUL WHEN USING DUMMY PLUGS FOR EXTERNAL SAFETY
INTERLOCK. DO NOT USE IT TO BRIDE AN EXISTING INTERLOCK
SYSTEM
GROUND THE UNIT:
To minimize shock hazard, the units Ground Terminal must be connected to a properly grounded
receptacle. In many cases, the quality of the safety ground provided by the power cord does not
fulfill safety needs. Also the power cord supplied with the equipment must be connected an
electrical receptacle with an electrical ground (safety earth ground). A non grounded unit is
dangerous and may cause instrument damage.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE:
Do not operate the Integrated Safety Unit in the presence of flammable gases or fumes.
KEEP AWAY FROM LIVE CIRCUITS:
Operating personnel must not remove unit covers. Component replacement and internal
adjustments must be made by qualified service personnel. Do not replace components with power
cable connected. To avoid injuries, always disconnect power, discharge circuits, and remove
external voltage sources before touching components.
DO NOT SUBSTITUTE PARTS OR MODIFY THE UNIT:
Because of the danger of introducing additional hazards, do not install substitute parts or perform
any unauthorized modification to the instrument. Return the instrument to a Raytech service
department for service to ensure proper operation and that safety features are maintained.
Instruments, which appear damaged or defective, should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.
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2 Description
Raytech Integrated Safety Unit is a useful device when creating rack mounted transformer
observing systems. It supplies Raytech devices with fused electrical power, manages external
interlocks and provides a single interface for an external warning lamp. The whole system can be
turned on and of with a single mains switch.
3 Advantages and Features
•
Compact power distribution
•
Mains switch for entire system
•
Additional fuses for connected devices and power lines
•
Two external interlocks
•
One warning lamp connector for all devices
•
Additional power plug on front panel for general use
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4 Schematic Diagram
V+
External
Interlock 1
5
5
To Safety
(Emergency) circuit
of Raytech Devices
6
6
5
External
Interlock 2
6
5
6
5
To Raytech
Devices
6
Optional Ext
Interlock 3 5
Interlock
Section
5
6
6
5
6
5
Warning
Lamp
To Other
Devices
6
3
3
4
4
To warning
Lamp Contact
of Raytech
devices
3
4
3
To Raytech
Devices
4
Warning
Lamp
Section
3
4
3
4
3
To Other
Devices
4
Mains Input
Mains
Switch
Fuses, 2 phases
with neutral
3 x 100 ... 240VAC
Screw-Type
Terminals
and C13 Plug
To devices power
supply
Screw-Type
Terminals
and C13 Plug
Screw-Type
Terminals
and C13 Plug
Power
Section
Fuses, 1 phase with
neutral
4 x C13 Plugs
4 x C13 Plugs
Type F Plug
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5 Front Panel
6 Rear Panel
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7 Interlock und Emergency Stop
These two signals have the same nature. Both should make sure, that the equipment is brought to
a safe state rapidly when safety circuit is broken.
In fact, the external safety interlock is nothing more, than the external add-on of the internal safety
interlock. For example for a Turns Ratio or Winding Resistance Meter internally, it doesn’t matter if
you push the emergency stop or interrupt the external safety interlock. Both actions will force the
device into a safe state.
Raytech device without external safety
interlock
Raytech device with external safety
interlock
7.1 Integrated Safety Unit and External Safety Interlock
As shown in chapter ‘4’ the Integrated Safety Unit is multiplying the external interlock signal and
sends it to every connected device. In other words, an opening of the external interlock line will
bring every connected component into a safe state.
NOTE:
Pushing an emergency stop button on a Raytech device has only a local
effect. No other device will be affected.
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7.2 Indication on Front Panel
CAUTION !
The indication on the front panel shows only the status of the external
safety interlock line. Emergency stop buttons on devices have no effect to it.
To make diagnostics easier, local emergency stop buttons have no effect to the external interlock
indication on the front panel. In general you will find the following two cases
•
The external interlock indication on the front panel shows ‘red’ and all connected Raytech
devices display the message ‘Emergency pressed!’.
 External safety interlock is open
•
Raytech device displays the message ‘Emergency pressed!’, but the interlock indication on
the Integrated Safety Unit shows green.
 Local emergency stop is pressed.
8 Mains connection for ATOS
L1
Phase 1
brown
L2
Phase 2
black
L3
Phase 3
grey
N
Neutral
blue
PE Earth
green/yellow
For WR100 connectionplease refer to the
WR-xx-Rack instruction manual No. 90163.
Colors are different!
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9 Contacts
Raytech Switzerland
Your Local Representative
Raytech
Raytech GmbH
GmbH
Oberenbenestrasse
Oberenbenestrasse 11
11
5620
5620 Bremgarten
Bremgarten
Phone:+4156
Phone:+4156 648
648 6010
6010
Fax:
+41
56
Fax: +41 56 648
648 6011
6011
Mail:
Mail: welcome@raytech.ch
welcome@raytech.ch
Web:
Web: www.raytech.ch
www.raytech.ch
Release Date: 2017-11
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