Westermo RM-505U-K - Manual (Page 4)

505K Radio Telemetry Module User Manual
    ELPRO Technologies Pty Ltd 2008 Page 4
505U-K Radio Telemetry Module
USER MANUAL
1 OVERVIEW ------------------------------------------------------------------------------------------ 6
1.1 I NPUT S IGNALS ................................................................................................. 6
1.2 P OWER S UPPLY ............................................................................................... 7
1.3 R ADIO T RANSMITTER ........................................................................................ 7
1.4 C ONFIGURATION ............................................................................................... 7
2 OPERATION ---------------------------------------------------------------------------------------- 8
2.1 N ORMAL O PERATION ......................................................................................... 8
2.2 W HAT INFORMATION IS TRANSMITTED OVER THE RADIO ? ...................................... 8
2.3 H OW OFTEN IS THE INPUT INFORMATION SENT BY RADIO ? ..................................... 8
2.4 I NPUTS ............................................................................................................. 9
2.4.1 Digital Inputs............................................................................................. 9
2.4.2 Pulse Inputs ............................................................................................. 9
2.4.3 Shaft Encoder Inputs.............................................................................. 11
2.4.4 Pulse Rates ............................................................................................ 11
2.4.5 Analogue Inputs ..................................................................................... 11
2.4.6 Setpoint Status ....................................................................................... 13
2.4.7 Supply Voltage ....................................................................................... 13
2.4.8 Low Supply Voltage Alarm (Supply LowVolts) ....................................... 13
2.4.9 Supply Failure ........................................................................................ 14
2.4.10 Communications Failure......................................................................... 14
2.5 H OW TO D ESIGN A R EMOTE M ONITORING S YSTEM ............................................ 14
2.5.1 Achieving reliable radio transmission ..................................................... 14
2.5.2 How far will the radio transmit? .............................................................. 15
2.6 C ALCULATING P OWER C ONSUMPTION .............................................................. 16
3 HARDWARE INSTALLATION---------------------------------------------------------------- 19
3.1 H OW TO MOUNT THE 505K .............................................................................. 19
3.2 A NTENNA I NSTALLATION .................................................................................. 20
3.2.1 Dipole antenna. ...................................................................................... 21
3.2.2 Yagi antenna. ......................................................................................... 21
3.2.3 Collinear antenna. .................................................................................. 22
3.3 C ONNECTION P LUG ......................................................................................... 22
3.3.1 PL1-K Plug Lead .................................................................................... 24
P OWER S UPPLY ......................................................................................................... 25
3.4.1 Battery Pack BU-5-2............................................................................... 25
3.4.2 External Power ....................................................................................... 26
3.5 I NPUT S IGNAL C ONNECTIONS ........................................................................... 26
3.5.1 Digital/Pulse Inputs................................................................................. 26
3.5.2 Shaft Encoder Connections.................................................................... 27
3.5.3 Analogue input ....................................................................................... 27
3.5.4 RS232 serial port.................................................................................... 28