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2. Introduction
This instrument, connected to a control motor to rotate the motor
shaft, is capable of adjusting opening/closing of valves and the
like. Event output, analog output and communication functions
are included as options.
2-1. Check before Use
This product has been fully inspected for quality assurance prior
to shipment. Nevertheless, you are requested to make sure that
there is no error, damage or shortage of delivered items by
checking the model codes and the external view of the product
and the number of accessories.
Confirmation of Model Codes
Check the model codes affixed to the case of the product
to ascertain if the respective codes designate what was
specified when you ordered it, referring to the following
code table:
Example of model codes:
E M 7 0 — 4
1
Y — 0
1. Series
EM70
2. Input
4: Current 4~20mA, 0~20mA DC
6: Voltage 1~5V, 0~5V, 0~10V DC
3. Output type
Y: Contact 240V AC 2A with CR absober
R: Contact 240V AC 2A withnot CR absober
S: Combination of SSR and contact 240V AC 2A
4. Event output
0: Without
1: Contact output
5. Analog output
0: Without
4: 4~20mA DC
6. Square root
extraction
0: Without
1: With function
7. Communication
0: Without
5: RS-485
7: RS-232C
8. Remarks
0: Without
9: With
0 0 0 0
2 3
4 5 6 7 8
Accessories
This instruction manual............................................. 1 copy
The Communication instruction manual................... 1 copy
(when the optional communication function is added)
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or request for information, please contact our
representative.
2-2. Handling Instruction
Do not operate the keys on the front panel with a hard or
sharply pointed object. Operate the keys only by softly
touching them with fingertips.
When cleaning the instrument, wipe it softly with a dry
cloth. Never use solvents such as thinner.
3. Installation and Wiring
3-1. Installation Site (environmental conditions)
This instrument should not be used in any of the places
mentioned below. Selection of these places may result in trouble
with the instrument, damage to it or even a fire.
Where flammable gas, corrosive gas, oil mist and particles
that can deteriorate electrical insulation are generated or
abundant.
Where the temperature is below 10 or above 50 .
Where the relative humidity is above 90% RH or below
the dew point.
Where highly intense vibration or impact is generated or
transferred.
Near high voltage power lines or where inductive
interference can affect the operation of the instrument.
To avoid damage to connected equipment, facilities or the EM70
itself due to a fault of the product, safety measures must be taken
before usage, such as the installation of a fuse, an overheating
protection device or the like. No warranty is valid in the case of an
accident arising from the use of this product without such safety
measures having been undertaken.
• The alert mark on the plate affixed to the instrument:
On the terminal nameplate affixed to the case of this instrument, the
alert mark is printed. This is to warn you of the risk of electric
shock which may result if the terminal is touched while being
energized.
• As a means to turn the power off, 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, with an indication that it is a means of turning the power off.
Use a switch or a breaker which meets IEC60947 requirements.
• 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.
Fuse rating/characteristics: 250 VAC 0.5 A/medium lagged or
lagged type.
Use a fuse which meets IEC60127 requirements.
• 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 to reduce the life of the product and/or to
result in problems with the product.
For rated voltage/current, see 10. Specifications.
The output terminal should be connected with a device which meets
IEC61010 requirements.
• A voltage/current different from that of the input specification
should not be applied to the input terminal. It may reduce the life of
the product and/or result in problems with the product.
For rated voltage/current, see 10. Specifications.
In the case of voltage or current input, the input terminal should be
connected to a device which meets IEC61010 requirements.
The instrument is provided with a draft hole for heat discharge.
Take care to prevent metal and other foreign matter from entering
this hole. Failure to do so may result in trouble with the instrument
or may even cause a fire.
• Do not block the draft hole or allow dust or the like to stick it.
A rise in temperature or insulation failure may result in a reduction
of the life of the product and/or problems with it or may cause a
fire.
For spaces between installed instruments, refer to 3-4.
External Dimensions and Panel Cutout.
• It should be noted that repeated tolerance tests against voltage,
noise, surge, etc. may lead to deterioration of the instrument.
• Users are prohibited from remodeling the product or abnormal use
thereof.
• It takes 30minutes to display the correct temperature after applying
power to the digital controller.(Therefore, turn the power on more
than 30 minutes prior to the operation.)
• To ensure safety and maintain the functions of this device, do not
disassemble this device. If this device must be disassembled for
replacement or repair, contact your dealer.
• This device is designed for mounting on the panel. Only the device
mounted on the front of the panel facing outward is of protection
class of IP66. Do not use for the device not facing outward or in
environment where water or solids in excess of IEC60529 may get
inside.
