EnOcean RCM 255 User Manual Download Page 10

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2. FUNCTIONAL DESCRIPTION

2.1 Block Diagram

Figure 7: Block diagram of RCM 255

2.2 Wire Description

Symbol

Wire Color

Function

Operational characteristics

red

Fixture

Relays output switched to Hot

black

Hot

Power Supply 120 VAC, 60 Hz

white

Neutral

Power Supply 120 VAC, 60 Hz

white

Neutral

Internally coupled to second white wire

©EnOcean GmbH, A. Anders

Page 10 of 18

RCM 255 User Manual V1.12

Summary of Contents for RCM 255

Page 1: ...Universal 1 channel switching receiver RCM 255 User Manual V1 12 January 2007 ...

Page 2: ...for the described applications processes and circuits EnOcean does not assume responsibility for use of modules described and limits its liability to the replacement of modules determined to be defective due to workmanship Devices or systems containing RF components must meet the essential requirements of the local legal authorities The approval requirements described in this document are of best ...

Page 3: ...scription ___________________________________________________________________ 10 2 3 Operating Mode ____________________________________________________________________ 11 2 4 Learning of Radio Transmitters ___________________________________________________ 11 2 5 Selective Deleting __________________________________________________________________ 12 2 6 Clear All________________________________...

Page 4: ... delivered By assigning the first transmitter the operating mode push button switch or magnet contact is defined The operating mode can only be changed after deleting all learned transmitters with the CLR button a Mode ROCKER SWITCH Each assigned transmitter can be used to change the switching state of the receiver It is possible to switch ON button I with one switch and to switch OFF button O wit...

Page 5: ...er Dissipation 1300mW max Relay Output maximum load 1100VA resistive cosφ 1 200W tungsten incandescent lamp 140W ballast with cosφ 0 4 0 6 fluorescent lamp Radio Frequency 868 3 MHz stabilized by crystal PLL Channel Bandwidth Sensitivity 280 kHz 95 dBm Antenna internal whip antenna Control Inputs 2 pushbuttons LRN set receiver into learning mode and CLR clear all Learning Mode Indication acoustic ...

Page 6: ... following outline drawings 0 2 mm Please note The following drawings are without the factory installed wiring Total depth of both holes from box top to pushbutton 1 0 mm Travel of pushbutton 0 5 to 1 0 mm Figure 3 RCM 255 top view EnOcean GmbH A Anders Page 6 of 18 RCM 255 User Manual V1 12 ...

Page 7: ...Figure 4 RCM 255 front view Figure 5 RCM 255 side view EnOcean GmbH A Anders Page 7 of 18 RCM 255 User Manual V1 12 ...

Page 8: ...nsated cosϕ 0 4 0 6 2 x 58W 25 000 2 x 18W 20 000 Compensated with capacitance in parallel 1 x 36W 20 000 2 x 18W 20 000 Fluorescent lamp 120V AC with conventional ballasts Compensated fluorescent DUO circuit 1 x 36W 20 000 4 x 18W 20 000 2 x 36W 20 000 Fluorescent lamp 120V AC with electronic ballasts Siemens Osram EVG 1 x 58W 20 000 10A Min 50 000 Resistive load 120V AC cosϕ 1 Max capacitance at...

Page 9: ... of wires black for Hot red for Load 2 x white for Neutral internally coupled The wire ends do have the plastic sheathing cut and partially pulled but not fully removed to prevents the fraying of wires Wire ends pre stripped 0 6 16mm with ends left on blank cable core 0 2 5mm terminal screw insulator wire guard terminal block Figure 6 RCM 255 terminal block 1 7 Environmental Conditions Operating T...

Page 10: ... Symbol Wire Color Function Operational characteristics F red Fixture Relays output switched to Hot S black Hot Power Supply 120 VAC 60 Hz N white Neutral Power Supply 120 VAC 60 Hz N white Neutral Internally coupled to second white wire EnOcean GmbH A Anders Page 10 of 18 RCM 255 User Manual V1 12 ...

Page 11: ...window contacts transmit a supervisory signal typically every 15 min 5 30 min If there has been no supervisory signal for more than 60 10 minutes the RCM 255 considers the contact closed Potential reasons the supervisory signal is not received include The energy store of the window contact is empty make sure the solar cell receives sufficient light the radio channel is disturbed by interference or...

Page 12: ... during an attempt to enter another transmitter In this case at least one ID has to be deleted before LEARNING a new transmitter 6 To exit Programming mode re press the LRN button or after 30 seconds of no activity the receiver automatically exits Programming mode 2 5 Selective Deleting A transmitter that has been LEARNED can be selectively deleted The Programming mode is activated by pressing the...

Page 13: ...s per EXAMPLE CIRCUIT as follows Both white wires are coupled internally N Screw wire nuts on clockwise making sure no bare conductors show below the wire connectors Secure each connection with electrical tape 5 Installation may now be completed by carefully positioning all wires and stowing the receiver box Restore power Figure 8 RCM 255 Example Circuit The integrated wave whip antenna enables a ...

Page 14: ...ater is a prospective remedial measure Do not mount the receiver into an enclosed metal housing 3 3 Transmission Range Since the radio signals are electromagnetic waves the signal is attenuated on the way from the transmitter to the receiver This means that the field intensity diminishes as the distance between the transmitter and the receiver increases and radio range is restricted Obstacles betw...

Page 15: ... electronic gear controls for lamps A minimum distance of 0 5m should be kept The angle at which the transmitted signal hits the wall is very important The effective wall thickness and with it the signal attenuation varies according to this angle Signals should be transmitted as directly as possible through the wall Wall niches should be avoided Figures 10 and 11 Obstacles reducing the transmissio...

Page 16: ...FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular ins...

Page 17: ...le field intensity meter that helps the engineer to find the best installation positions for sensor and receiver It can also be used to check disturbances in links to already installed equipment The EPM 100 can be used to identify 868 MHz trunk radio The EPM100 displays the field intensity of received radio telegrams and interfering radio signals in the 868MHz range The simplest procedure for dete...

Page 18: ...4 CERTIFICATE OF CONFORMITY ...

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