Toshiba AD268 Manuale Utente
10
Analog I/O Modules (AD268 / DA264 / TC218)
2. Specifications
PART 1 AD268
2. Specifications
This section describes the AD268 specifications.
The general specification for the AD268 conforms to the specification for the T2 PLC.
The general specification for the AD268 conforms to the specification for the T2 PLC.
2.1 Specifications
Item
AD268
Input type
Voltage input
Current input
-5 to 5V
Bipolar
-10 to 10V
0 to 5V
0 to 5V
0 to 20mA
0 to 10V
Input range
Unipolar
1 to 5V
4 to 20mA
Input impedance
1M
Ω
or more
250
Ω
Number of input channels
8 channels
I/O allocation type
X 8W (8 input registers XW are assigned)
Resolution
16-bit
Overall accuracy
±
0.2% FS (at 25
°
C)
±
0.5% FS (0 to 55
°
C)
(FS:
±
10V)
Temperature drift
±
100ppm/
°
C or less
Conversion cycle
Approx. 1ms/channel (Approx. 8ms/8 channels)
Insulation resistance
10M
Ω
or more
Withstand voltage
1500Vac - 1 minute (between logic and analog circuits)
500Vac - 1 minute (between analog circuit and external 24V)
1500Vac - 1 minute (between analog circuit and FG/LG)
500Vac - 1 minute (between analog circuit and external 24V)
1500Vac - 1 minute (between analog circuit and FG/LG)
Status indication
1 green LED (On when normal)
Special function
Gain and offset calibration function
Input data averaging function
Unused channel skip function
External 24Vdc power voltage drop detection
Input data averaging function
Unused channel skip function
External 24Vdc power voltage drop detection
External power supply
24Vdc
±
10% - 120mA
Internal 5Vdc current
consumption
consumption
300mA or less
External connection
20-pin removable terminal block
Weight
Approx. 300g
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net