background image

 

PAC27 THYRISTOR TYPE SINGLE PHASE POWER REGULATOR

 

 

Instruction Manual

 

 

Thank you for purchasing this Shimaden product. Please check that the delivered product is exactly what you ordered. Please do not begin 
operating this product until you have read this instruction manual thoroughly and understand its contents. 

 
 

"Notice"

 

Please ensure that this instruction manual is provided to the final user of the instrument. 
 

Preface

 

This instruction manual is meant for those who will be involved in the installation, wiring, operation and routine maintenance of the PAC27 series. As this 
manual describes matters to be attended to concerning operation of the PAC27 series, including its installation and wiring, you are requested to keep this 
manual at your work site when using this equipment. In using this instrument, please follow the instructions provided herein. For matters regarding safety, 
potential damage to equipment and/or facilities, additional explanations and instructions are given under the following headings: 
 

WARNING

 

˗

This heading indicates that failure to follow instructions carefully could cause injury or even death. 

 

CAUTION

 

˗

This heading indicates that failure to follow instructions could cause damage to equipment and/or facilities. 

 

NOTE

 

 

WARNING

 

˗

This heading indicates additional instructions and/or notes. 

The PAC27 series is designed for controlling the power of a heater or similar equipment used in industrial facilities. It must not be used in any way that 
might result in injury or fatality, or must be used only after adequate safety measures are taken. We will take no responsibility for any accident resulting 
from the usage of this product without appropriate safety measures being in place. 

 

 

WARNING

 

1. This instrument must be housed, for example, in a control box to prevent the terminal board from coming into accidental physical contact with personnel. 
2. Do not use the instrument as a switch. Even without output, the instrument is energized through a resistor, which means that it has the latent potential 

to create an electric shock serious enough to result in serious injury or death. 

3. The temperatures of the radiation fin and the chassis rise to very high levels during operation. Never touch them. 

If touched, serious burns may result. 

4. Wiring should be carried out without energizing the instrument. Otherwise, an electric shock is probable. 
5. Before using the instrument, make sure that the earth terminal is grounded. 
6. Do not touch the terminals or other charged parts by hand while they are energized. Take care to allow no foreign matter to get into the product. If 

something gets in by mistake and it is necessary to insert your hand or tool inside it, make sure to turn the power off and to confirm that the condition 
are safe enough to allow procedure. 

 

 

CAUTION

 

Should the possibility of doing harm or damage to peripheral devices, equipment or products in the event of trouble of this instrument arise, you must 
take appropriate safety measures such as installing the proper fuse, an overcurrent device or an overheat prevention device before you start using the 
instrument. 

 

 

CAUTION

 

1. The alert mark 

 

on the plate affixed to the instrument: 

On the nameplate affixed to the outside of the instrument, the alert mark 

 

is printed. This is to warn you of electric shock which may result if the 

charger is touched while it is energized. It also warns of burns which may result from the high temperature of the instrument right after power is turned 
off as well as while it is energized. 

2. A means to turn power off, a switch or a breaker should be installed in the external power circuit to be connected to the power supply terminal of this 

instrument. The switch or the breaker should be installed adjacently to the instrument and in a position which allows it to be operated with ease, with 
an indication that it is a means of turning the power off. 

3. The conductor connector should be used only after fastening it tightly. If the fastening is insufficient, overheating due to contact resistance might cause 

accidental burning. 

4. Stick to the rated power voltage and frequency. 
5. Do not apply voltage and current which are out of their rated ranges to the input terminals. Such an act may shorten the life of the product or cause 

trouble with the instrument. 

6. Voltage/current of a load to be connected to the output terminals should be within the rated ranges. If their ratings are exceeded, a rise in temperature 

may shorten the life of product or cause trouble with the instrument. 

7. Once wiring is completed, make sure to install the provided terminal cover. 
8. Users are prohibited from remodeling the instrument or using it in a prohibited or unauthorized manner. 
9. To ensure safety and maintain the functions of this device, do not disassemble this device other than "wiring to the terminal block, replacing the fuse". 

If this device must be disassembled for replacement or repair, contact your dealer. 

10 You are requested to adhere to matters to be attended to as described in the instruction manual in order to use the instrument safely and correctly 

and to maintain its reliability. 

 
Note: For accidents or damage arising from failure to observe the warnings and matters to be attended to as described in this instruction manual, we will 

take no responsibility nor provide compensation. 

 

 

PAC27F-1DE 

Jun. 2022 

Summary of Contents for PAC27

Page 1: ...to get into the product If something gets in by mistake and it is necessary to insert your hand or tool inside it make sure to turn the power off and to confirm that the condition are safe enough to...

Page 2: ...2YHUKHDWLQJ ODUP 7K ULVWRU 7URXEOH ODUP 3RZHU GMXVWPHQW DQG 6RIW 6WDUW 7LPH GMXVWPHQW QWHUQDO 3RZHU 5HJXODWLRQ 6RIW 6WDUW 7LPH GMXVWPHQW 9DULRXV KDUDFWHULVWLFV XUUHQW DSDFLW DQG DORULILF 9DOXH PELHQW...

Page 3: ...3 1 Confirmation of Specification Codes Please double check that the delivered product is exactly as you specified If you need further information please get in touch with our nearest local office...

Page 4: ...er adjuster SOFT START Soft start time adjuster HEATER SET Heater setting device for heater break alarm option H B SET Heater break alarm setting device option Terminal marking and description C1 C2 C...

Page 5: ...perature which exceeds 40 C Temperature allowed for this instrument is below 50 C 2 Humidity which exceeds 90 RH 3 Flammable gas corrosive gas or gas or particles that can deteriorate electrical insul...

Page 6: ...as to keep it from easy contact with persons It has to be installed vertically for heat radiation leaving more than 100 mm spaces above and below it respectively If it is inevitable to install the in...

Page 7: ...7 6 Circuit Block Diagram and Terminal Marking Terminal Marking Control Terminal No 1 18 See Page 4 2 2 Power Load Circuits...

Page 8: ...ity When T terminals are wired use wire material of 0 5 mm2 minimum 8 Wiring for Control Signals For control signals M3 5 terminal screws are used Use a crimp style terminal of more than 3 5 mm in ins...

Page 9: ...d temperature blocks the gate signal of the thyristor and stops output at which time current flows across the alarm output terminals AL1 and AL2 The monitor lamp O H lights The normal state is restore...

Page 10: ...fect of suppressing the rush current of a heater Setting is possible from less than one second min to more than 30 seconds max The longer the set time the slower the response of output Time should be...

Page 11: ...In case ambient temperature exceeds 50 C the instrument should be used with load current as illustrated below 11 3 Control System and Output Waveform 11 4 Special Heater and Feedback Control Type of h...

Page 12: ...dealing with low voltage command When power line is wired as a precaution against accidental short circuit make sure to install one molded case circuit breaker for each PAC27 The current capacity of...

Page 13: ...h a thyristor In case an ordinary transformer is used no problem will be caused when the load rate is held below 70 of the rating for the transformer 13 2 When Electromagnetic Switch Contactor Is Used...

Page 14: ...operation manual power adjuster switch is used voltage current input type 14 1 4 External power Base residual power adjuster 14 1 5 Contact input High low power adjuster When an external power adjust...

Page 15: ...ssumption that voltage and current have similar waveforms Depending on the types of loads however voltage has a waveform which is different from or out of proportion to that of current If this is the...

Page 16: ...sed for almost all types of heaters and allows for precision control of temperature As the constant power control is meant for a heater load a correct power level is unable to be attained for other lo...

Page 17: ...imiting works at 0 of the rated current and no output is produced If the instrument is used without the current limit setting device the control terminals CL2 and CL3 have to be short circuited Then t...

Page 18: ...m with no condensation Storage temperature between 20 and 65 C Applicable standards Safety IEC 60947 4 EN60947 4 EMC EN60947 4 EMC immunity EN60947 4 on condition that designated noise filter is used...

Page 19: ...ne load circuit This sometimes happens during trial run 3 Base power or low power regulator is connected It is for preventing minimum value of output from being 0 Detach low power regulator and rechec...

Page 20: ...Specialists Head Office 2 30 10 Kitamachi Nerima ku Tokyo 179 0081 Japan Phone 81 3 3931 7891 Fax 81 3 3931 3089 E MAIL exp dept shimaden co jp URL http www shimaden co jp The contents of this manual...

Reviews: