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Interface specifications – Westermo MDW-45 User Manual

Page 12

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12

6617-2203

Interface specifications

Power

MDW-45 LV
MDW-45 LV EX

MDW-45 HV

Rated voltage

12 to 48 VDC

95 to 240 VAC
110 to 250 VDC

Operating voltage

9.6 to 57.6 VDC

85.5 to 264 VAC
88 to 300 VDC

Rated current

95 mA @ 12 VDC
35 mA @ 48 VDC

21 mA @ 95 VAC
10 mA @ 110 VDC

Rated frequency

DC

48 – 62 Hz / DC

Polarity

Reverse polarity protected

Polarity independent

Connection

Detachable screw terminal

Detachable screw terminal

Connector size

0.2 – 2.5 mm² (AWG 24-12)

0.2 – 2.5 mm² (AWG 24-12)

RS-422/485

Electrical specification

RS-485

Data rate

1 200 bit/s – 115.2 kbit/s

Data format

7 or 8 data bit, Odd, even or none parity, 1 or 2 stop bit

Connection

Detachable screw terminal

Connector size

0.2 – 2.5 mm² (AWG 24-12)

Transmission range

In accordance with EIA RS-485

≤ 1200 m, depending on data rate and cable type

Settings

120 Ω termination and failsafe biasing 680 Ω , by DIP-switch

Protection

Installation Fault Tolerant (up to ±60 V)

RS-232

Electrical specification

RS-232

Data rate

1 200 bit/s – 115.2 kbit/s

Data format

7 or 8 data bit, Odd, even or none parity, 1 or 2 stop bit

Connection

9-pin D-sub female DCE

Transmission range

15 m