Toshiba SX 2000 - Manual (Page 106)

2.3 I/O Module Specification
AD624&AD674
Item AD624 AD674
No. of input channel 4 channels (N side common) 4 channels (N side common)
Input Range 1 - 5Vdc or 4 - 20mA*1 -lOVdc -+10Vdc
Input Impedance
500kO or more (1-5V)
250Q (4-20mA)
1MQ or more
Resolution 1 - 5V : 0 - 4000
4 - 20mA : 0 - 4000
-10V -+10V:-2000-+2000
Overall Accuracy ±0.5%FS/25“C
±1%FS/0-55“C
±0.5%FS/25“C
±1%FS/0-55“C
Conversion Cycle Approx. 2.4ms/channel Approx. 2.4ms/channel
Wire breakage detection Only possible for 4 - 20mA —
External Power Supply
failure detection
available
—
Current consumption 50mA (5Vdc) or less 50mA (5Vdc) or less
Withstand voltage 1500Vac/1 minute 1500Vac /1 minute
External Power required 24Vdc±10%-50mA 24Vdc±10%-90mA
Weight Approx. 250g Approx. 250g
Circuit Configuration
CH1
CH2„ N
CH3"" N
CH4 N
24VdcI
LED/
A/D
Converter
A
5
3
c
2
O
15
DC/DC Converter
'1:4-20mA
Connect attached resistor
(250£5) between each
channel’s terminals when
using as 4-20mA range.
Terminal Connections
cm SCXii
p
CH2
}OIXZ
p
BOCZ
soc
24Vdc_|r
(50mA) X_
Isolate external power
supply line (12-24Vdc)
from other signal lines.
Use shielded twisted-pair
cables for analog signals,
and ground the shields
securely.
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