Carrier /50HC 04-28, Controls, Start-Up, Operation And Troubleshooting, Page: 122 / 144

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APPENDIX C — VARIABLE FREQUENCY DRIVE (VFD) (cont)
WARNING
EQUIPMENT DAMAGE HAZARD
Failure to follow this warning could result in equipment
damage.
The VFD motor parameters shown in Table U should never be
changed in the field unless authorized by Carrier Corporation.
Damage could occur to the motor or unit if these are set to any-
thing besides what is shown in the table. These are only pro-
vided for drive or motor replacement or future adjustments
Table Q — VFD Parameters Configured by Factory or VFD Keypad
PARAMETER GROUP PARAMETER TITLE ABB PARAMETER HVAC DEFAULT CARRIER
Options COMM PROT SEL 9802 NOT SEL LEN (6)
EFB Protocol
EFB PROTOCOL ID 5301 0000 hex 0601 hex
EFB STATION ID 5302 0 41
EFB BAUD RATE 5303 9.6 kb/s 38.4 kb/s
EFB PARITY 5304 8 NONE 1 8 NONE 1
EFB CTRL PROFILE 5305 ABB DRV LIM DCU PROFILE
Table R — VFD Parameters Hard Coded by Comfort Link Controls
PARAMETER GROUP PARAMETER TITLE ABB PARAMETER HVAC DEFAULT CARRIER
Start/Stop/Dir EXT1 COMMANDS 1001 DI1 COMM
Reference Select REF1 SELECT 1103 AI1 COMM
Constant Speeds CONST SPEED 7 1208 60 Hz 0 Hz
System Controls
RUN ENABLE 1601 NOT SEL NOT SEL
FAULT RESET SEL 1604 KEYPAD COMM
START ENABLE 1 1608 DI4 DI4
Start/Stop
START FUNCTION 2101 SCALAR FLYSTART AUTO
STOP FUNCTION 2102 COAST RAMP
Fault Functions
COMM FAULT FUNC 3018 NOT SEL CONST SP 7
COMM FAULT TIME 3019 10.0 s 10.0 s
Table S — VFD Parameters Configurable Through Comfort Link Controls
PARAMETER
GROUP
PARAMETER TITLE
ABB
PARAMETER
HVAC DEFAULT CARRIER CCN POINT
DISPLAY MENU
ITEM
Start-Up Data
MOTOR NOM VOLT 9905 230V,460V,575V See Table U VFD1NVLT N.VLT
MOTOR NOM CURR 9906 1.0*In See Table U VFD1NAMP N.AMP
MOTOR NOM FREQ 9907 60 Hz 60 Hz VFD1NFRQ N.FRQ
MOTOR NOM SPEED 9908 1750 rpm See Table U VFD1NRPM N.RPM
MOTOR NOM POWER 9909 1.0*Pn See Table U VFD1NPWR N.PWR
Start/Stop/Dir DIRECTION 1003 FORWARD REQUEST VFD1MDIR M.DIR
Limits MAXIMUM CURRENT 2003 1.3*I2n See Table U VFD1MAXA MAX.A
Accel/Decel
ACCELER TIME 1 2202 30.0s 30.0s VFD1ACCL ACCL
DECELER TIME 1 2203 30.0s 30.0s VFD1DECL DECL
Motor Control SWITCHING FREQ 2606 4 kHz 4 kHz VFD1SWFQ SW.FQ