User manual HITACHI SJ-LW

[. . . ] Hitachi Inverter SJ300/L300P SERIES SJ-LW (LonWorks Option) INSTRUCTION MANUAL Thank you for purchase of "HITACHI INVERTER". This manual explains about treatment of "SJ-LW (LonWorks Option)". By reading this manual and an instruction manual of inverter use practically for installation, maintenance, and inspection. After reading this manual, keep it handy for future reference. [. . . ] The requested speed will not be greater than the value defined by nciMaxSpeed or less than the value defined by nciMinSpeed. Depending on Drive Speed Setpoint, behavior of Speed Setpoint Scaling will be changed. (1) nviInvSetFreq = 0x7FFF(Initial value) It prescribes the scaling for Drive Speed Setpoint (Refer to chapter 5. 2. 2). (2) nviInvSetFreq = 0 to 400 It sets direction of rotation. nviDrvSpeedScale = 100, Direction: Forward = -100, Direction: Reverse = When a value in nviDrvSpeedScale is set any value except for 100 and ­100, it becomes the stop command (Run: Deceleration stop, Stop: Maintain to stop). Example (1): nviInvSetFreq = 0x7FFF For example if nviDrvSpeedStpt value is 100% and nviDrvSpeedScale value is -150%, then actual speed setpoint value is -150% meaning reverse 1, 5 times nominal speed (Refer to chapter 5. 3. 6). Also refer to 6. 1. 4. 10 CHAPTER 5 LONWORKS COMMUNICATION FUNCTION Example (2) : nviInvSetFreq = 0 to 400 When nviInvSetFreq is at 60Hz and nviDrvSpeedScale is 100%, the inverter is in forward run at 60Hz. Valid Range: -163. 84 to163. 83% Default Value: Is defined by nciDrvSpeedScale (Refer to 5. 4. 14). Scaling: See chapter 6. 1. 4 5. 2. 5 Emergency Override (SNVT_hvac_emerg nviEmergOverride) When EMERG_SHUTDOWN command is inputted, the inverter executes the deceleration stop and also the value in EMERG_SHUTDOWN is supported but the other values are not supported. (Deceleration time is dependant on Ramp Down Time (Refer to chapter 5. 4. 10)) Value Definition Contents Support 0 EMERG_NORMAL Yes 1 EMERG_PRESSURIZE No 2 EMERG_DEPRESSURIZE No 3 EMERG_PURGE No 4 EMERG_SHUTDOWN Yes 5 EMERG_FIRE No 0xFF EMERG_NUL No 11 CHAPTER 5 LONWORKS COMMUNICATION FUNCTION 5. 3 Output Network Variables - nvo's 5. 3. 1 Node Object Status (SNVT_obj_status nvoObjStatus) This nvo reports node object status. It will be updated every time status change. Identifier Invalid_request Report_mask Comm_failure In_alarm Disabled Manual_control Status The node has been asked for an unsupported request. NviObjRequest have received a RQ_DISABLED request. Settings of nviSpeedScale and nviSpeedStpt is disabled. SJ300/L300P is not controlled from the option card. See digital operator value at A001 (should be 02 to avoid manual control to be set) and A002 (should be 01 to avoid manual control to be set). Manual_control will be set if option-board isn't in control over one parameter. Option card can still give order where it has command. It will be set if NviObjRequest have received a RQ_MANUAL_CTRL request. If another identification number then 0 and 1 have been set in request by SNVT nviObjRequest. The request will not be carried out. Invalid ID 5. 3. 2 Drive Status (UNVT_sj300 nvoDrvStatus) This output network variable provides the status of the drive. The first three bytes will be mapped directly from the information received at address 0xFFFF8E10 in the SJ300/L300P. [. . . ] Comply with A001 and A002. RQ_MANUAL_ CTRL 6. 5 Internal SJ300/L300P error codes The malfunction codes are coded as follows. Those error codes will be found in the fourth byte of nvoDrvStatus. Fault code SJ300/L300P 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 21 23 24 30 35 36 60-69 70-79 Fault description No fault Overcurrent drive. Option 2 error 0-9. 20 CHAPTER 7 COUNTERMEASURE FOR ABNORMALITY 7. 1 Trip display When the inverter is in a tripped state, the inverter displays an error code (See table below). [. . . ]