Carrier 19XRV Vfd, Code, Fault Type Description Corrective Action On VFD, Hist Screen None

VFD

FAULT

ICVC

CODE

FAULT

FAULT TYPE

DESCRIPTION

CORRECTIVE ACTION

ON VFD

STATE

HIST

SCREEN

NONE

206

Processor memory fault

Consult VFD manual to resolve generic fault.

0

No Entry

Check Compressor Discharge High Pressure

switch wiring and accuracy.

2

207

Auxiliary Input

Input is open.

Check for high condenser water temperatures,

low water flow, fouled tubes.

Check for division plate/gasket bypass. Check for

noncondensables in refrigerant.

3

210

Power Loss

Line voltage dropout

Temporary loss of voltage. Disable Single Cycle

Dropout in VFD_CONF sceen.

4

Verify phase-to-phase and phase-to-ground line

215

Undervoltage

Low DC bus voltage

voltage. VFD Circuit Board malfunction.

Call Carrier Service.

5

Verify phase to phase and phase to ground line

166

Overvoltage

High DC bus voltage

voltage. Monitor AC line for high transient voltage

conditions.

Any phase current > 106% RLA. Can result from

significant load side current imbalance when

7

running at full load.

217

Motor Overload

An internal electronic overload trip has occurred.

Check entering condenser water temperature

and water flow rate.

Check Motor Rated Load Amps in VFD_CONF

screen.

Check that VFD refrigerant isolation valves are

open.

8

219

Heat Sink Over-

Heat sink temperature has exceeded the maxi-

Check VFD refrigerant cooling orifice and refrig-

temp

mum operating temperature

erant strainer.

Check for proper VFD cooling fan operation and

air flow blockage.

Check that VFD refrigerant isolation valves are

open.

9

219

Transistor Over-

The output transistors have exceeded the maxi-

Check VFD refrigerant cooling orifice and refrig-

temp

mum operating temperature

erant strainer.

Check for proper VFD cooling fan operation and

air flow blockage.

12

The drive output current has exceeded the hard-

Check for high entering water temperature or low

286

HW Overcurrent

condenser water flow. Check current settings in

ware current limit.

VFD_CONF screen.

13

A current path to earth ground greater than 25%

Check the motor, motor terminals, and external

220

Ground Fault

wiring to the drive output terminals for a

of drive rating has occurred.

grounded condition.

14

206

Ground Warning

The ground current has exceeded the level set in

—

P467

To reset the processor, cycle power to chiller,

15

206

Load Loss

If this fault appears, there may be a problem with

check ICVC VFD_CONF settings and save set-

software configuration.

tings when exiting VFD_CONF screen.

Check VFD parameters with Drive Explorer.

17

The DC bus ripple

Check phase-to-phase and phase-to-ground dis-

216

has exceeded a

Line Voltage imbalance

tribution bus voltage. Increase Line Voltage %

preset level.

Imbalance in VFD_CONF screen.

20

206

TorqPrv Spd Band

See VFD Fault Code 15

See VFD Fault Code 15

21

225

Output PhaseLoss

The current in one or more phases has been lost

Check Motor Current % Imbalance in

or remains below a preset level.

VFD_CONF screen.

Verify input voltage is within drive specified limits.

The drive is not following a commanded decelera-

Verify system ground impedance follows proper

24

204

Decel Inhibit

grounding techniques.

tion because it is attempting to limit the bus volt-

Disable bus regulation P186 and/or add dynamic

age.

brake resistor and/or extend deceleration time

P537 and P538.

33

206

AuRsts Exhausted

See VFD Fault Code 15

See VFD Fault Code 15

36

286

SW Overcurrent

The drive output current has exceeded the 1 ms

Check for excess load, improper DC boost set-

current rating.

ting, DC brake volts set too high.