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MAKING MODERN LIVING POSSIBLE

Instruction

VLT

®

 HVAC Basic Drive

Cascade Controller

Содержание VLT HVAC

Страница 1: ...MAKING MODERN LIVING POSSIBLE Instruction VLT HVAC Basic Drive Cascade Controller...

Страница 2: ......

Страница 3: ...is 3 In this operation the run time between pumps is equalized reducing the required pump maintenance and increasing reliability and lifetime of the system The alternation of the lead pump can take p...

Страница 4: ...P Coast to stop Cut out correspond relays terminal 27 29 and 42 45 External Interlock Coast to stop Cut out built in relays are de energized Table 1 1 Commands Assigned to Digital Inputs LCP keys Vari...

Страница 5: ...he programmed time expires Parameter Range Default Function 25 42 Staging Threshold Expressionlimit 0 100 90 The percentage of maximum pump speed to stage on a fixed speed pump 25 43 Destagi ng Thresh...

Страница 6: ...an be reset by writing 0 25 90 Pump Interlock 0 Off 1 On 0 Off Choose the pump to interlock for e g service The pump will be taken out of any pump cycling etc Table 1 3 1 2 Installation 1 2 1 Control...

Страница 7: ...PNP Bus ter Bus ter RS 485 Interface RS 485 N PS 485 69 P RS 485 68 Com RS 485 61 PNP Source NPN Sink ON Terminated OFF Unterminated ON 1 2 240V AC 3A Not present on all power sizes Do not connect shi...

Страница 8: ...Coated Coated Coated Coated Coated Coated Coated Coated Coated Table 1 4 Frequency Converter P15K P18K P22K P30K P37K P45K P55K P75K P90K Typical shaft output kW 15 18 22 30 37 45 55 75 90 IP20 Frame...

Страница 9: ...Digital Outputs 5 30 Terminal 27 Digital Output 5 31 Terminal 29 Digital Output 5 34 On Delay Digital Output 5 35 Off Delay Digital Output 5 4 Relays 5 40 Function Relay 5 41 On Delay Relay 5 42 Off...

Страница 10: ...25 06 Number of Pumps 25 2 Bandwidth Settings 25 20 Staging Bandwidth 25 21 Override Bandwidth 25 22 Fixed Speed Bandwidth 25 23 SBW Staging Delay 25 24 SBW Destaging Delay 25 25 OBW Time 25 27 Stage...

Страница 11: ...www danfoss com drives MI18I302 130R0267 MI18I302 Rev 2012 08 31...

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