Westermo IDW-90, Руководство пользователя

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15 6620-2200
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port.
This earthing point should have a low impedance connection to the conductive enclosure of the apparatus
cabinet, or similar, where the unit is built-in. This conductive enclosure should be connected to the earthing
system of an installation and may be directly connected to the protective earth.
Generic I/O Relay Output
Electrical specification One change over contact
Switching voltage Max 40 VAC/DC
Switching current Max 500 mA AC/DC
Electrical endurance 5 x 10 5 operations @ 20 W / 20 VA Resistive load
Transmission range Cable Length
≤
15 m
Connection Detachable screw terminal (DCE )
Connector size 0.2 – 2.5 mm 2 (AWG 24 – 12)
Isolation to Power port 3 kV
rms
50 Hz 1 min
ISDN line 2 kV
rms
50 Hz 1 min
RS-232 1.5 kV
rms
50 Hz 1 min
RS-485 1.5 kV
rms
50 Hz 1 min
I/O input 2 kV
rms
50 Hz 1 min
Shielded cable Not required*