Carrier OMNIZONE 50XJ064-104 Operating And Troubleshooting Manual

Also see for OMNIZONE 50BV020: Installation and service instructions

22Table 14 — VFD Mode Summary for 50XJ Unit50BV Variable Frequency Drive Control — Thevariable frequency drive is factory wired and programmed forproper operation with the unit controls; no installation orservice adjustments are normally required.The VFD default conditions at unit power up are: “0.0 Hz”in the LED display. When the fan is operating, the LEDdisplays the output frequency in Hz.OPERATING KEYPAD — The keypad allows users to en-able or disable the keypad, input commands from the keypad,and monitor drive operation. Fig. 7 shows the operating panelkeypad layout and the locations of the keys and display LEDs.The 4-character LED displays various values, dependingupon what mode is running.• In Standard Monitor mode: the LED displays the currentoutput frequency.• In Status Monitor mode: monitors the status conditionsand frequency command value setting.• In Setup mode: displays setup parameter titles and values.• During a trip: displays the trip title.The appropriate local/remote LED, which is inset into thespeed control key, is lit when the unit is in local or remotemode.KEY FUNCTIONS — Refer to Fig. 8 for the functions ofeach key on the keypad.NON-TRIP MESSAGES — Non-trip messages are those thatmay be displayed but do not cause a trip and are not recorded inthe fault history. Table 15 lists the non-trip messages with theirexplanations.TRIP MESSAGES — Trip messages and their causes areshown in Table 16.CLEARING A TRIP — A trip clear can be performed afterthe cause of the trip has been removed. To perform a trip clear,either switch off power to the inverter (keep VFD off untilcharge LED turns off) or use the following procedure:Press STOP. The display will show: CLr. Press STOP again.The display will show: 0.0, indicating that the trip is clearedand the display will return to Standard Monitor mode.If any key other than the STOP key is pressed at the tripclear command prompt, the trip clear command is aborted andthe display returns to Standard Monitor mode (where the triptitle will be displayed flashing). The trip clear command doesnot clear the recorded past faults.STATUS MONITOR MODE — In Status Monitor mode, it ispossible to monitor the inverter status (frequency command,output voltage, current, terminal information, etc.). Statusmonitor mode is entered by pressing the MON key until themonitor LED is lit. The present output frequency (which, justafter power is applied, is 0.0) is displayed. (If the ST-CCterminals are not shorted, OFF will be displayed.)If either or is pressed continuously, every 0.5 secthe next/previous item will be displayed. As optional points,RUN, STOP, displaying the frequency status, and switching tolocal/remote and manual/auto modes can be performed.KEY OPERATON LED MESSAGE EXPLANATION— 0.0 Standard monitor modeS/P/M SEtP Switch to mode selection menu.S/P/M PrG Program mode.S/P/M non Select Status Monitor mode title with U/D keys.R/W Fr-F Enter Status Monitor mode by pressing R/W. First monitoritem (motor run direction) is displayed.DOWN 60.0 Pressing UP/DOWN views next/previous status variable.Frequency command value displayed (monitor #1)DOWN C 0 Load current (%) monitor (monitor #2)DOWN Y 228 Input voltage (V) monitor (monitor #3)DOWN P 0 Output voltage (V) monitor (monitor #4)DOWN A.... Input terminal status monitorDOWN b.... Input terminal status monitorDOWN O.... Output terminal status monitorDOWN t0.00 Total RUN time monitorDOWN OC1 Past trip #1 monitorDOWN OC2 Past trip #2 monitorDOWN OC3 Past trip #3 monitorDOWN nErr Past trip #4 monitorDOWN Fr-F Return to the top menu item