Shimaden SR73A Series Instruction Manual

Digital controller

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Thank you for purchasing the Shimaden SR73A and 74A Series. Please check that the delivered product is
the correct item 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 given to the final user
of the instrument.
Preface
This instruction manual is meant for those who will be involved
in the wiring, installation, operation and routine maintenance of
the SR73A and 74A series.
This manual describes the care, installation, wiring, function, and
proper procedures for the operation of SR73A and 74A series.
Keep this manual at the work site during operation of the SR73A
and 74A series. While using this instrument, you should always
follow the guidance provided herein.
For matters regarding safety, potential damage to equipment
and/or facilities, additional instructions are indicated by the
following headings:
WARNING
Exercise extreme caution as indicated. This heading indicates
hazardous conditions that could cause injury or death of
personnel.
CAUTION
Exercise extreme caution as indicated. This heading indicates
hazardous conditions that could cause damage to equipment
and/or facilities.
NOTE
This heading indicates additional instructions and/or notes.
The mark
designates a protective conductor terminal. Make
sure to properly ground it.
The Matters regarding Safety
SR73A and 74A series controllers are designed for controlling
temperature, humidity and other physical subjects. It must not
be used in any way that may adversely affect the safety, health
or working conditions of those who come into contact with the
effects of its usage. When used, adequate and effective safety
countermeasures must be provided at all times. No warranty,
express or implied, is valid in the case of usage without having
implemented proper safety countermeasures.
To avoid damage to the connected equipment, facilities or the
product itself due to a fault of the product, safety
countermeasure must be taken before usage, such as proper
installation of the fuse and the overheating protection device.
No warranty, express or implied, is valid in the case of usage
without having implemented proper safety countermeasures.
SR73A and 74A Series
Instruction Manual
WARNING
CAUTION
Digital Controller
• The
On the terminal nameplate affixed to the case of your
instrument, the
risk of electrical shock which may result if the charger is
touched while it is energized.
• A means to allow the power to be turned off, such as a switch
or a breaker, should be installed in the external power circuit
to be connected to the power terminal of the instrument.
Fix the switch or the breaker adjacently to the instrument in a
position which allows it to be operated with ease, and with an
indication that it is a means of turning the power off. The
switch or the breaker should meet the requirements of IEC
947.
• Fuse:
Since the instrument does not have a built-in fuse, do not
forget to install a fuse in the power circuit to be connected to
the power terminal.
The fuse should be positioned between the switch or the
breaker and the instrument and be attached to the L side of
the power terminal.
Fuse Rating: 250V AC 0.5A/medium lagged or lagged type
Use a fuse which meets the requirements of IEC 127.
• Voltage/current of a load to be connected to the output
terminal and the alarm terminal should be within a rated
range. Otherwise, the temperature will rise and reduce the
life of the product and/or result in problems with the product.
For the rated voltage/current, see 8. Specifications on page
15. The output terminal should be connected with a device
which meets the requirements of IEC 1010.
• A voltage/current different from that of the input
specification should not be added on the input terminal. It
may reduce the life of the product and/or result in problems
with the product.
For the rated voltage/current, see 8. Specifications on page
15.
For the rated voltage (mV or V) or current (4~20 mA) input,
the input terminal should be connected with a device which
meets the requirements of IEC1010 as input terminals.
• In the case where the heater break alarm (optional) input is
0~5V DC, the CT input terminal should be connected to an
apparatus which meets IEC 1010 requirements.
• As the CT input terminal for the heater break alarm
(optional), only the attachment CT should be used. Using
anything else may result in problems with the product.
For the CT provided, refer to 1-1 Check before Use on page
2. (Except when 0~5V DC input has been selected.)
• The SR73A and 74A series controllers are provided with a
draft hole for heat discharge. Take care to prevent metal or
other foreign matter from obstructing it. Failure to do so may
result in problems with the product and may even result in
fire.
- 1 -
CAUTION
mark on the plate affixed to the instrument:
mark is printed. This is to warn you of the
SR73AFC-1DE Sep. 2000

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Summary of Contents for Shimaden SR73A Series

  • Page 1 Digital Controller Instruction Manual Thank you for purchasing the Shimaden SR73A and 74A Series. Please check that the delivered product is the correct item you ordered. Please do not begin operating this product until you have read this instruction manual thoroughly and understand its contents.
  • Page 2: Table Of Contents

    1. Introduction • Do not block the draft hole or allow dust or the like to adhere to it. Any rise in temperature or insulation failure may result 1-1. Check before use in a shortening of the life of product and/or problems with the This product has been fully checked for quality assurance prior to product.
  • Page 3: Mounting

    (2) Crimp terminal should accommodate the M3.5 screw and 9mm into the opening (where should have a width of less than 7mm. SHIMADEN packing is exposed) of the front case (3) For thermocouple input, select the compensation wire and rotate the screwdriver while suitable to the thermocouple type.
  • Page 4: Terminal Arrangement Table

    : Key switches automatic control output to manual control output and AH/HB STBY vice versa. During manual control output, the MAN monitor LED flashes. • The key does not function in the control output SHIMADEN stop mode. - 4 -...
  • Page 5: Screen Instruction

    4. Screen instruction (3) Screen change within mode 0 screen group • By pressing the key, the screen changes. 4-1. Power on and initial screen display (4) Screen change within mode 1 screen group • Two methods are used for screen change within mode 1 After turning on power, the display shows each power on initial screen group.
  • Page 6: Instruction For Screen Change And Each Screen

    4-4. Instruction for screen change and each screen Note: In the following, the mark indicates that the key above 5 seconds the mark should be pressed. MODE 1 Screen Group Mode 0 Screen Group Direct call screen (screen No.0) 3 seconds Initial value: 0 Setting range: 0~19 Set the screen No.
  • Page 7: Measuring Range Code Table

    Mode 2 Screen Group (Function selecting screen) 1 2 3 4 1-11 Proportional cycle setting screen (screen No.11) key to move select digit and data Initial value: Contact output 30 seconds registration, the selectable digit is indicated by SSR drive voltage 3 seconds flashing point.
  • Page 8: Supplementary Explanation Of Screens

    4-6. Supplementary explanation of screens (6) 1-14 Soft Start Time Setting Screen • Soft start is the function selected to raise control output (1) 0-1 Control Output Screen gradually in the beginning of control. It is effective in • During manual control an output value is set on this preventing excessive current from flowing into a heater or screen.
  • Page 9: Setting Of Alarm

    (2) Abort of AT Example 2: To abort the AT action, by showing the AT action control In case of setting the alarm action point at 600 °C for higher screen, press the key to select and press limit absolute value alarm. key to abort AT and LED for AT monitoring also goes The set point is action point.
  • Page 10: Control Output Characteristics

    (1) P (proportional action) 7. Instructions on Communication Control output rate (%) is set for measuring range. 7-1. General Control output value changes in proportion with measured value (PV) and set value (SV). Section 7 deals with communication interface, which is an For wide proportional band, change of control output is small optional function, and communication procedure.
  • Page 11: Connection Of Rs-485

    Example: Mark state T × D+ > T × D- 7-3-1. Communication mode selecting screen ( Space state T × D+ < T × D- (1) Local Mode ( Line converter SR73A and 74A Controllers The COM lamp on the front panel goes out to allow the FG (Earthing for protection) terminal No.
  • Page 12: Text

    (2) Write Data : Address (Machine No.) Two digits • • • • • • • • • • • • • • • • • • • • • • • • • • • • • The text format of write data Command Write data Two-digit address data (00~99) set in the controller is...
  • Page 13: Communication Error

    (2) One-Byte Data Error Types One-byte data in the text has a fixed length of one character Description Error No. Error Type which is either 0 or 1. Seven items are covered, namely, stop status, manual status, AT status, AH status, AL/HB status BCC error Arithmetic value is not in accord with BCC.
  • Page 14: A List Of Transmitted/Received Data

    (3) Restrictions by Read/Write Commands Depending on (8) D8 Equipped Optional Functions Received data ER12 Transmitted PV bias PV filter data When a command which becomes invalid because an optional function is not equipped, ER12 should be sent (9) D9 back.
  • Page 15: Specifications

    (14) EE measuring range in case of T and U input, though. DF (hysteresis) value • R.T.D: JIS Pt100 / JPt100 3-wire type Amperage: Approx. 0.25mA (15) EF Lead wire tolerable MR (manual reset) value resistance: 5Ω max. / wire (The 3 lead wires should have same resistance.) (16) F1 •...
  • Page 16 • Communication address:Machine numbers are set in a range • Current setting range: Off, 0.1~50.0A (Alarm action stops from 0 to 99. when Off is set.) or, Off, 1~500A • Communication rate: 1200, 2400, 4800 and 9600 bps. (when 0~5 V DC for CT input is •...

This manual is also suitable for:

Sr74a series

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