3500/20 Rack Interface Module Bently Nevada

3500/20 Rack Interface Module  Bently Nevada

Description 

The Rack Interface Module (RIM) is the primary interface to the 3500 rack. It supports a proprietary protocol used to configure the rack and retrieve machinery information. The RIM must be located in slot 1 of the rack (next to the power supplies). The RIM supports compatible Bently Nevada external communications processors such as TDXnet, TDIX, and DDIX.  While the RIM provides certain functions common to the entire rack, the RIM is not part of the critical monitoring path and has no effect on the proper, normal operation of the overall monitoring system. One RIM is required per rack. For Triple Modular Redundant (TMR) applications, the 3500 System requires a TMR version of the RIM. In addition to all the standard RIM functions, the TMR RIM also performs "monitor channel comparison."  The 3500 TMR configuration implements monitor voting using the setup specified in the monitor options. Using this method, the TMR RIM continually compares the outputs from three (3) redundant monitors. If the TMR RIM detects that the information from one of those monitors is no longer within a configured percentof the information of the other two monitors, it will flag that the monitor is in error and place an event in the System Event List.

Specifications Inputs Power Consumption Data Front panel Standard Data Rate I/O modules Standards Data Rate 4.75 watts, typical RS232 serial communications 38.4 k baud. RS232/RS422 serial communications Internal modem communications 38.4 k baud maximum,serial communications   14.4 k baud, internal modem communications.

Relay to indicate when the 3500 rack is operating normally or when a fault has been detected within the rack. User can select either an OPEN or CLOSED" contact to annunciate a NOT OK condition. This relay always operates as Normally Energized. OK relay Normally closed contacts Rated to 5A  24 Vdc/ 120 Vac, 120 Watts/600 VA Switched Power. Arc suppressors are provided.

Outputs Front Panel LEDs OK LED TX/RX LED TM LED CONFIG OK LED I/O Module OK Relay Indicates when the RIM is operating properly. Indicates when the RIM is communicating with other modules in the 3500 rack. Indicates when the 3500 rack is in Trip Multiply. Indicates that the 3500 rack has a valid configuration.

Controls Front Panel Rack reset button Address switch Configuration Keylock Clears latched alarms and Timed OK Channel Defeat in the rack. Performs same function as Rack Reset contact on I/O module. Used to set the rack address; 63 possible addresses. Used to place 3500 rack in either RUN mode or PROGRAM mode. RUN mode allows for normal operation of the rack and locks out configuration changes. PROGRAM mode allows for normal operation of the rack and also allows for local or remote rack configuration. The key can be removed from rack in either position, allowing switch to remain in either RUN or PROGRAM positions. Locking switch in the RUN position allows you to restrict unauthorized rack reconfiguration. Locking switch in PROGRAM position allows remote configuration of a rack at any time.

I/O Module System Contacts Trip multiply Alarm inhibit Rack reset Maximum Current RS232/RS422 Switch (RS232/RS422 I/O module only) Communications Front Panel Communications Protocol Data rate Purpose Cable length RS232/RS422 I/O Module Communications Used to place 3500 rack in Trip Multiply. Used to inhibit all alarms in the 3500 rack. Used to clear latched alarms and Timed OK Channel Defeat. <1 mA dc, Dry Contact to Common. Used to select between RS232 and RS422 for communications with the Bently Nevada host software. Protocol Baud rate Purpose Cable length RS232 RS422 Modem RS232, RS422, or external modem. Bently Nevada proprietary. 38.4 k baud maximum (auto baud capable). Permits data collection and 3500 rack configuration. 30 metres (100 feet) maximum. 1200 metres (4000 feet) maximum. Consult modem manufacturer, typical 3 metres (10 feet). Modem I/O Module RS232 serial communications only. Bently Nevada proprietary. 38.4 k baud maximum (auto baud capable). Permits data collection and 3500 rack configuration. 30 metres (100 feet) maximum. Communications Protocol Baud rate Purpose Cable length Modem Hayes AT-compatible. Bently Nevada proprietary. 14.4 k baud maximum. Permits data collection and 3500 rack configuration. 2.1 metres (7 feet) maximum. To phone jack.

1) LEDs: Indicate the operating status of the module 2) Hardware Switches: 3) Configuration Port: Configure or retrieve machinery data from only this rack using RS-232 protocol. 4) Rack Interface I/O Module: Daisy chain or configure racks using RS-232 and RS-422 protocol 5) Data Manager I/O Module: Connect two Bently Nevada Communication Processors to the 3500 rack.

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