SMC Networks EX250-SAS Series, Руководство по эксплуатации

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-27-
No.EX##-OMP0025
Electrical specifications
Specifications
Item
EX250-SAS3 EX250-SAS5 EX250-SAS7 EX250-SAS9
For communication Supplied by AS-Interface circuit. 26.5 to 31.6 VDC
∗ 1
Power supply
voltage
For output 24 VDC +10%/-5%, PELV
∗ 2
-
Internal current consumption (Unit)
∗ 3
100 mA or less 65 mA or less 100 mA or less 65 mA or less
Number of inputs 8 inputs 4 inputs 8 inputs 4 inputs
Input type TTL
Connection block Input block: EX250-IE1 to 3
∗ 4
Supply voltage 24 VDC
Input
specification
Supply current 240 mA or less
∗
5
120 mA or less
∗
5
240 mA or less
∗
6
120 mA or less
∗
6
Number of outputs 8 outputs 4 outputs 8 outputs 4 outputs
Output type PNP (negative common) / source
Load
Solenoid valve with surge voltage suppressor of 24 VDC and 1.5 W or less
(manufactured by SMC)
Supply current 24 VDC
Residual voltage 0.3 V or less
Output
specification
Supply current 500 mA or less
∗ 7
250 mA or less
∗ 7
240 mA or less
∗ 6
120 mA or less
∗ 6
∗
1: The power supply for the communication must use the special power supply made for AS-i.
Refer to each maker’s manual etc. for details.
∗
2: The power supply for the output equipment must use the one which suits PELV (Protection Extra Low Voltage) demanded of
IEC364-4-41.
∗
3: Current consumption inside SI unit.
∗
4: Refer to the input block operation manual for details.
∗
5: Power for input equipment is supplied from communication power.
∗
6: The AS-Interface circuit provides current to the internal parts of the SI unit and all connected equipment.
Since there is a limit on the possible supply current to all connected equipment, select the equipment connected to the input/output
device to stay within the possible supply current.
Example:
When EX250-SAS9 is used
Valve: VQC110NY - 5 (low - wattage type of 0.5 W) x 4 pcs.
0.5 [W] ÷ 24 [V] x 4 [pcs.] = 84 [mA] (4 outputs simultaneously ON)
The maximum possible supply current of EX250-SAS9 is 120 mA. Therefore, the possible supply current to the sensor is
120 [mA] - 84 [mA] = 36 [mA]
Use of low - wattage type valves by minimizing the maximum number of simultaneous output, and low current
consumption sensors (2 - wire sensor, etc.) is recommended.
∗
7: Power for output equipment is supplied from output equipment power.
Applicable valve series
Main series Applicable series
SY series SY3000, SY5000
VQC series VQC1000, VQC2000, VQC4000
SV series SV1000, SV2000, SV3000 (Tie rod base manifold)
S0700 series S0700