®
RKC INSTRUMENT INC.
All Rights Reserved, Copyright
2002, RKC INSTRUMENT INC.
Single-phase Thyristor Unit
THV-1
Instruction Manual
IMR01M01-E5
Thank you for purchasing this RKC product. In order to
achieve maximum performance and ensure proper operation
of your new instrument, carefully read all the instructions in
this manual. Please place this manual in a convenient
location for easy reference.
SYMBOLS
: This mark indicates precautions that must be
taken if there is danger of electric shock, fire,
etc., which could result in loss of life or injury.
: This mark indicates that if these precautions
and operating procedures are not taken,
damage to the instrument may result.
: This mark indicates that all precautions should
be taken for safe usage.
: This mark indicates important information on
installation, handling and operating
procedures.
: This mark indicates supplemental information
on installation, handling and operating
procedures.
:
This mark indicates where additional
information may be located.
An external protection device must be installed if
failure of this instrument could result in damage to
the instrument, equipment or injury to personnel.
All wiring must be completed before power is turned
on to prevent electric shock, fire or damage to
instrument and equipment.
This instrument must be used in accordance with the
specifications to prevent fire or damage to
instrument and equipment.
This instrument is not intended for use in locations
subject to flammable or explosive gases.
Do not touch high-voltage connections such as
power supply terminals, etc. to avoid electric shock.
RKC is not responsible if this instrument is repaired,
modified or disassembled by other than
factory-approved personnel. Malfunction can occur
and warranty is void under these conditions.
This product is manufactured on the assumption that it is
mounted within a control panel. All high-voltage
connections such as power supply terminals must be
enclosed in the control panel to avoid electric shock by
operating personnel.
All precautions described in this manual should be taken to
avoid damage to the instrument or equipment.
All wiring must be in accordance with local codes and
regulations.
Always use this product at the rated power supply voltage,
load current and power frequency.
All wiring must be completed before power is turned on to
prevent electric shock, instrument failure, or incorrect
action.
To prevent instrument damage or failure, protect the power
line and the input/output lines with a protection device such
as fuse, etc.
If this product is used for phase control, higher harmonic
noise may be generated. Therefore in this case, take such
measures as installing an isolation transformer and
separating the power line from the high-voltage line for
load drive.
Prevent metal fragments or lead wire scraps from falling
inside instrument case to avoid electric shock, fire or
malfunction.
Tighten each terminal screw to the specified torque found
in the manual to avoid electric shock, fire or malfunction.
For proper operation of this instrument, provide adequate
ventilation for heat dispensation.
Do not connect wires to unused terminals as this will
interfere with proper operation of the instrument.
Turn off the power supply before cleaning the instrument.
Do not use a volatile solvent such as paint thinner to clean
the instrument. Deformation or discoloration will occur. Use
a soft, dry cloth to remove stains from the instrument.
To avoid damage to instrument display, do not rub with an
abrasive material or push front panel with a hard object.
NOTICE
This manual assumes that the reader has a fundamental
knowledge of the principles of electricity, process control,
computer technology and communications.
The figures, diagrams and numeric values used in this
manual are only for purpose of illustration.
RKC is not responsible for any damage or injury that is
caused as a result of using this instrument, instrument
failure or indirect damage.
Periodic maintenance is required for safe and proper
operation of this instrument. Some components have a
limited service life, or characteristics that change over time.
Every effort has been made to ensure accuracy of all
information contained herein. RKC makes no warranty
expressed or implied, with respect to the accuracy of the
information. The information in this manual is subject to
change without prior notice.
No portion of this document may be reprinted, modified,
copied, transmitted, digitized, stored, processed or
retrieved through any mechanical, electronic, optical or
other means without prior written approval from RKC.
CONTENTS
1. CHECKING THE PRODUCT ……………………………2
2. CONFIRMATION OF THE MODEL CODE ……………2
3. PARTS DESCRIPTION …………………………………3
4. MOUNTING ………………………………………………3
5. WIRING ……………………………………………………6
6. SETTING …………………………………………………9
7. FUNCTIONS ……………………………………………14
8. ERROR OR ALARM DISPLAYS ………………………21
9. SPECIFICATIONS ………………………………………22
10. ACCESSORIES (OPTION) ……………………………23
WARNING
CAUTION
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WARNING
CAUTION
