Carrier 19XRV - Manuals

6 Configure the VFD — All configurations required by the VFD are supplied by the ICVC through the VFD Gateway. Any configuration changes necessary and possible are made on the ICVC screens. A complete set of configurations is transmit- ted to the VFD each time the controls are powered up. The follow...

7 Vmax = Maximum measured phase-to-phase voltage (A to B, B to C, C to A) Vmin = Minimum measured phase-to-phase voltage Imbalance Calculation Formula 8. Take a final thermal measurement of the capacitor bank and power after finalizing the installation to ensure all connections are good. 9. If a gro...

8 SERVICE Troubleshooting the Drive — The drive can display two kinds of error codes on the ICVC called the Alert and Alarm codes. These codes signal a problem detected during self tuning or drive operation. Alert and Alarm codes are locat- ed in the 19XRV Start-Up, Operation and Maintenance Instruc...

9 Table 3 — Drive Status Indicator Descriptions NOTES: 1. A Type 1 alarm indicates that a condition exists. Type 1 alarms are user configurable. 2. A Type 2 alarm indicates that a configuration error exists and the drive cannot be started. Type 2 alarms are not configurable. VERIFYING THAT DC BUS CA...

10 DPI PORT 02 (COMPUTER PORT) DIGITAL INPUT TERMINAL BLOCKS (SLOTS 04 & 05) ETHERNET/IP ADDRESS SWITCHES DIGITAL OUTPUT TERMINAL BLOCKS (SLOTS 04 & 05) EMBEDDED ETHERNET/IP PORT MCB I/O TERMINALS (AUX FAULT / HIGH PRESSURE FAULT / ENABLE INPUT) Fig. 14 — MCB (Main Control Board) Components ...

11 Table 4 — ICVC Alert Codes PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary. *[LIMIT] is shown on the ICVC as temperature, pressure, voltage, etc., predefined or selected by the operator as an override or an alert. [VAL...

12 Table 4 — ICVC Alert Codes (cont) NORMAL RUN WITH OVERRIDES *[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition. [VALUE] is the actual pressure, temperature, voltage, etc., at which t...

13 Table 4 — ICVC Alert Codes (cont) CHILLER ALERTS *[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control ...

15 Table 5 — ICVC Alarm Codes CHILLER PROTECTIVE LIMIT FAULTS *[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition. [VALUE] is the actual pressure, temperature, voltage, etc., at which th...

21 Table 6 — Powerflex 755 Fault Code Descriptions and Corrective Actions (cont) VFD FAULT CODE ON VFD HIST SCREEN ICVC FAULT STATE FAULT TYPE DESCRIPTION CORRECTIVE ACTION 3 8 220 Phase U to Gnd GROUND FAULT Check the wiring between the drive and the motor. Check motor for grounded phase. Check Mot...

22 Table 6 — Powerflex 755 Fault Code Descriptions and Corrective Actions (cont) Checking Power Modules and Motor Inputwith Input Power Off — Use the following procedure to check the drive’s power module circuitry with power off: 1. Turn off and lock out input power. Wait five minutes.2. Verify ther...

23 Servicing the Drive 1. Using recommended screwdriver = 6.4 mm (0.25 in.) flat or T20 star, open access door. See Fig. 16. 2. Check to be sure that the voltage between DC+ and DC- and from each DC terminal to the chassis is zero before proceeding. See Fig. 17. 3. Remove the enclosure. See Fig. 18....

24 REPLACING THE GATEWAY (A-B20-750-20COMM OPTION CARD) — The following are the steps for remov- ing and replacing the existing gateway. 1. Disconnect power to the drive. Before removing the en- closure, open the access door on the front of the drive. See Fig. 16. 2. Check to be sure that the voltag...

25 CHILL PLATE FAN AND INTERNAL FAN REPLACE- MENT — The following are the steps to replace the chill plate fan and internal fan in Frames 6 and 7.Frame 6: 1. Disconnect power to the drive. Before removing the en- closure, open the access door on the front of the drive. See Fig. 16. 2. Check to be su...

26 Frame 7: 1. Disconnect power to the drive. Before removing the en- closure, open the access door on the front of the drive. See Fig. 16. 2. Check to be sure that the voltage between DC+ and DC- and from each DC terminal to the chassis is zero before proceeding. See Fig. 17. 3. Remove the enclosur...

28 APPENDIX A — WIRING SCHEMATICS CHILLER CONTROL SCHEMATIC NOISESUPPRESSOR VFD COOLANTSOLENOID ) R L C ( ) K L B ( ) N R B ( (BRN) RMS + S - RELATIVEHUMIDITY (BLK) (WHT) (RED) JUMPER JUMPER R STOP ICVC ALARM J7 J1 J8 5 4 24VAC 3 2 G + - 1 (RED) (GRY) (RED) (BLK) (CLR) SERVICE 6 SW2 1 ON 3 2 SWITCH ...

30 APPENDIX A — WIRING SCHEMATICS (cont) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) NOT NOT U S ED U S ED a19-1966 CONTINUED ONFACING PAGE  611

32 APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING Optional BACnet * Communications Wiring — The following section is used to configure the UPC Open con- troller which is used when the BACnet communications option is selected. The UPC Open controller is mounted in a separate enclosure below the m...

33 APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont) CONFIGURING THE BAS PORT FOR BACNET MS/ TP — Use the same baud rate and communication settings for all controllers on the network segment. The UPC Open con- troller is fixed at 8 data bits, No Parity, and 1 Stop bit for this protocol's com...

35 APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont) Table D — Open System Wiring Specifications and Recommended Vendors LEGEND LOCAL ACCESS TO THE UPC OPEN CONTROL- LER — The user can use a BACview 6 handheld keypad dis- play unit or the Virtual BACview software as a local user inter- face ...

36 APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont) COMMUNICATION LEDS — The LEDs indicate if the controller is communicating with the devices on the network. See Tables E and F. The LEDs should reflect communication traffic based on the baud rate set. The higher the baud rate the more soli...

38 APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont) Table G — Network Points List (cont) LEGEND POINT DESCRIPTION CCN POINT NAME READ/ WRITE UNITS DEFAULT VALUE RANGE BACNET OBJECT ID BACNET OBJECT NAME System Cooling Demand Level N/A R N/A N/A N/A AV:9006 cool_demand_level_1 System Demand ...