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7-1
Section
Analog Input Units
105
Characteristics
Item
Specification
Voltage inputs
Current inputs
Input signal range
0 to 5 V, 1 to 5 V, 0 to 10 V,
or --10 to 10 V
0 to 20 mA or 4 to 20 mA
Max. signal input
±
15 V
±
30 mA
Input impedance
1 M
Ω
min.
Approx. 250
Ω
Resolution
1/6000 (FS)
Accuracy
25
_
C
±
0.3% FS
±
0.4% FS
y
--10
_
C to
55
_
C
±
0.6% FS
±
0.8% FS
Conversion time
With 4 inputs: 4 ms/4 points
Converted output data
(Binary)
Binary (4-digit hexadecimal)
--10- to 10-V range:
F448 to 0 to 0BB8 full scale
Other signal ranges:
0000 to 1770 full scale
Averaging function
Settable (via DIP switch)
Open circuit detection
Provided. (with a range of 1 to 5 V or 4 to 20 mA)
Dielectric strength
500 VAC; detected current 1 mA (between communica-
tions section and analog input, and between internal
power supply and analog input)
Isolation method
Photocoupler insulation (between communications part
and analog input)
(no insulation between analog inputs)
Components
PWR Indicator
Internal power being supplied: Lit green
No internal power supply:
Not lit
U.ERR Indicator
(Refer to page 163.)
Unit error:
Lit red
Unit normal: Not lit
DIN Track Mounting Hook
Cassette
(Refer to page 166.)
Detach by pressing on the lower part and
pulling outwards.
DIP Switch
(Refer to page 106.)
On the left side of the Cassette.
Pin 1 to 6: Input range
Pin 7:
Averaging
Pin 8, 9:
Reserved for system use (OFF)
Pin 10:
Software setting enable/disable
I/O Unit Interface
Communications Connector 1
(on the Communication Unit side)
TS Indicator
(Refer to page 162.)
Shows the communications status of the I/O Unit interface.
Normal communications: Lit green
I/O Unit interface error:
Lit red
During initialization, or with no power supply: Not lit
I/O Unit Interface
Communications Connector 2
(on the terminator side)
Terminal Block