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Name And Function Of Each Part - Hitachi EH-150 Series Instruction Manual

Resistance temperature detective input module, programmable logic controller
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Name and function of each part

Name and function of each part
1] Lock button
4] Mode setting DIP switch
3] Terminal
No.
Name
1]
Lock button
2]
I/O cover
3]
Terminal
4]
Mode setting DIP switch
5]
LED display
Item
Explanation of operation
Terminal block
Press this button to dismount. Module can be fixed firmly by a screw of
M4 × 10 mm (0.39 in.).
This is the cover attached to the terminal block area.
This is the terminal block for connecting input signals. The terminal block is
removable.
These switches are to set wiring type, temperature range, input filter,
conversion time, temperature unit, EH-PT4 compatible mode and sensor
type.
The status of module and input signal are indicated in this LED.
OK : Green : Normal status
2W : Green : 2-wire mode
AMB : Green : -40 to 60
C mode
HS : Green : High speed conversion time (0.5s)
Off : Normal conversion time (1.6s)
0 to 7 : Blinking red : Open-wire or out-of-range is detected in
corresponding channel number (0.5s cycle)
Detail explanation
The module receives input signals from outside.
The CPU module verifies the status of the installed module and if the I/O
assignment information matches that contained in the user program, the input
information is received according to the contents of the user program.
The screws for the terminal block are M3 screws. Use a crimp terminal that fits the
screw diameter. The maximum thickness of the cable should be only up to 0.75
2
2
mm
. (Use 0.5 mm
cable when two crimp terminals are attached to the same
terminal.)
The recommended crimp terminal is indicated below.
(Recommended)
6
Handle very carefully since
cable could be detached
6
when screw is loose.
Unit : mm
Model name
Weight
Consumption current
5] LED display
Dimensions (mm (in.))
2] I/O cover
Function
Off : 3-wire mode
Off : -200 to 850
C mode
4
EH-RTD8
Approx. 0.15 kg
Approx. 300 mA
30 (1.18)
95 (3.74)
Remarks
Refer to Mode setting DIP
switch.
Refer to Mode setting DIP
switch.
Remarks
NJI-613 (X)

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