IDEC FC4A-C10R2 - Page 443

28: AS-INTERFACE MASTER COMMUNICATION
« FC4A MICROSMART USER’S MANUAL » 28-3
AS-Interface Power Supply
The AS-Interface bus uses a dedicated 30V DC power supply (AS-Interface power
supply), which is indicated with the AS-Interface mark. General-purpose power sup-
ply units cannot be used for the AS-Interface bus.
Recommended IDEC AS-Interface Power Supplies
Cables
The AS-Interface bus uses only one cable to transmit signals and power. Use one of the following cable types (the wire
does not have to be stranded).
• Standard yellow unshielded AS-Interface cable (with polarity)
• Ordinary two-wire flat cable
Applicable Cable Specifications
Note: When using single wires, the maximum cable length is 200 mm. See “Maximum Communication Distance” on page
28-1.
• Use a VLSV (very low safety voltage) to power the AS-Interface bus.
The normal output voltage of the AS-Interface power supply is 30V DC.
Input Voltage Output Voltage Output Wattage Type No.
100 to 240V AC 30.5V DC
73W PS2R-Q30ABL
145W PS2R-F30ABL
Cable Type Cable Size/Manufacturer Cross-sectional View
AS-Interface
Standard Cable
Cable sheath color: Yellow
Conductor cross section: 1.5 mm
2
LAPP’s Cables
Type No: 2170228 (sheath material EPDM)
Type No: 2170230 (sheath material TPE)
2-wire Flat Cable
or
Single Wires
(See Note)
Conductor cross section
Stranded wire: 0.5 to 1.0 mm
2
Solid wire: 0.75 to 1.5 mm
2
AWG: 20 to 16
AS-Interface Marks
Caution
AS-Interface Cable Two-wire Flat Cable
AS-Interface – AS-Interface +
(blue) (brown)
AS-Interface – AS-Inter face +
(blue) (brown)