Basler DECS-250 Instruction Manual

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Basler DECS-250 Instruction Manual Manual pdf 125 page image

Typical ConnectionsTypical connection diagrams are provided in this chapter as a guide when wiring the DECS-250 forcommunication, contact inputs, contact outputs, sensing, and operating power.Typical connections for applications which use three-phase wye generator voltage sensing are illustratedin Figure 108. Typical connections for applications which use three-phase wye PMG voltage sensing areillustrated in Figure 109. Locators in Figure 108 and Figure 109 correspond to the descriptions found inTable 6.NoteField wires, connected to terminals F+ and F–, must be twisted pairwith approximately one turn per inch for an EMC compliant installation.Table 6. Typical Connection Drawing DescriptionsLocator Description1 Optional - Basler part number 9387900104.2 Operating (bridge) power input. For single-phase power, omit one phase connection.See Power Inputs or Specifications for operating power ratings.3 Generator voltage sensing input. Potential transformer required if line voltage exceeds600 Vac.4 Cross-current compensation input, 1 Aac or 5 Aac.5 Connections required only if voltage matching, sync-check, or auto synchronizerfunctions are used.6 Labels indicate the functions assigned by the default programmable logic to thecontact inputs and output contacts.7 See Power Inputs or Specifications for control power input ratings.8 RS-232 port used for communication with another DECS in a redundant DECSsystem.9 Optional communication port (style xxxxxxP) uses PROFIBUS protocol.10 IRIG time synchronization input.11 Ethernet communication port can be copper (style xxxxx1x) or fiber optic (stylexxxxx2x) and uses Modbus communication protocol.12Type B USB jack for temporary, local communication.CautionIn accordance with the guidelines defined in USB standards, the USBport on this device is not isolated. To prevent damage to a connectedPC or laptop, the DECS-250 must be properly tied to ground.13 This input/output is unassigned by default if the DECS-250 is not equipped with theoptional PSS (style number xPxxxxx).14 RS-485 port uses the Modbus RTU protocol for communication with other networkeddevices.CALL US TODAY1-888-POWER-58REQUEST A QUOTEparts@genpowerusa.comSHOP ONLINEwww.genpowerusa.comCALL US TODAY1-888-POWER-58REQUEST A QUOTEparts@genpowerusa.comSHOP ONLINEwww.genpowerusa.com