SMAR DC302, Руководство по эксплуатации и техническому обслуживанию владельца

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Section 5
5.1
TECHNICAL SPECIFICATIONS
General
Signal (Communication) Digital only. Fieldbus, 31.25 Kbits/s voltage mode
Power Supplies
If there are requirements for power supply isolation between inputs and
outputs, it is recommended to use at least two power supplies, one for
inputs and another one for outputs and VDC.
If the application does not require isolation between inputs and outputs, only
one power supply could be used for inputs, outputs and VDC.
Inputs and outputs are optically isolated from each other.
Current consumption
quiescent
150 mA from VDC power supply
Turn-on Current
400 mA during the first 20s after power
Turn-on Time
Approximately 10 seconds.
Update Time
Approximately 100 ms. The update time is related to the update of the
inputs and outputs. It is independent of the system macrocycle.
Output impedance
Non-intrinsic safety from 7.8 kHz - 39 kHz should be greater or equal to 3 k.
Intrinsic safety output impedance (assuming an IS barrier in the power
supply) from 7.8 kHz - 39 kHz should be greater or equal to 400.
Vibration Effect Meets SAMA PMC 31.1.
Temperature Limits
Operation: -40 to 85ºC (-40 to 185 ºF)
Storage: - 40 to 110ºC (-40 to 230 ºF)
Housing
Protection: it has IP20 rating (finger protected) and meets VBG4 and other
European accident prevention requirements.
Mounting
Using DIN rail (TS35-DIN EN 50022 or TS32-DIN EN50035 or TS15-DIN
EN50045.
DC302 Inputs
Description-Inputs
The input module senses the DC input voltage and converts it into a True (ON) or False (OFF) logic
signal. It has 1 optically isolated group of 16 inputs to detect 24Vdc.
In case of failuring of input power supply there will be an indication in the BLOCK_ERR parameter
for input function blocks such as DI, MDI, FFB (See Function Blocks Manual).
Technical specifications
Architecture Number of Inputs is 16
Isolation, groups are individually isolated Optical Isolation up to 5000 Vac
External Power Voltage Source for Inputs 18 - 30 Vdc
Typical Consumption per group (all inputs ON) 120 mA
Power Indicator Green LED
Inputs
ON State Level (True Logic) 15 - 30 Vdc
OFF State Level (False Logic) 0 - 5 Vdc
Typical Impedance 3k9

Status display Red LED
Switching Information
Time from “0” to “1”: 30 µs
Time from “1” to “0”: 50 µs
Wire
One wire 14 AWG (2 mm2)
Two wires 20 AWG (0.5 mm2)