Carrier 19XRV specifications Diode Checks, Meter Lead Meter Reading

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Table 6 — Powerflex 755 Fault Code Descriptions and Corrective Actions (cont)

VFD

 

 

 

 

FAULT

ICVC

 

 

 

CODE

 

 

 

FAULT

FAULT TYPE

DESCRIPTION

CORRECTIVE ACTION

ON VFD

STATE

 

 

 

HIST

 

 

 

 

 

 

 

SCREEN

 

 

 

 

168

 

HeatSinkUnder-

Heatsink temperature sensor is reporting a value

Check heat sink temperature sensor. Check heat

206

below -18.7 C (-1.66 F) or the sensor feedback

Tmp

sink temperature.

 

 

circuit is open.

 

 

 

 

210

206

HW En Jumper

See VFD Fault Code 15

See VFD Fault Code 15

Out

 

 

 

 

211

206

Safety Brd Fault

See VFD Fault Code 15

See VFD Fault Code 15

213

206

Safety Jumper In

See VFD Fault Code 15

See VFD Fault Code 15

291

206

HSFan Lifwe

See VFD Fault Code 15

See VFD Fault Code 15

292

206

InFan Life

See VFD Fault Code 15

See VFD Fault Code 15

293

206

MtrBrg Life

See VFD Fault Code 15

See VFD Fault Code 15

294

206

MtrBrg Lube

See VFD Fault Code 15

See VFD Fault Code 15

295

206

MachBrg life

See VFD Fault Code 15

See VFD Fault Code 15

296

206

MachBrg Lube

See VFD Fault Code 15

See VFD Fault Code 15

315

206

Excess Psn Error

See VFD Fault Code 15

See VFD Fault Code 15

316

206

Node Fault Error

See VFD Fault Code 15

See VFD Fault Code 15

Checking Power Modules and Motor Input with 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 there is no voltage at the drive’s input power termi- nals.

3.Using a voltmeter, check the DC bus potential as de- scribed above to ensure the DC bus capacitors are dis- charged.

4.Disconnect the motor from the drive.

5.Check all AC line and DC bus fuses.

6.Use a multimeter to check the input diodes and output IGBTs if a fuse is open.

7.Check motor impedance.

8.Reconnect the motor to the drive.

9.Reapply input power. See Tables 7 and 8.

WARNING

Confirm that the DC bus has discharged before performing diode checks.

Table 7 — Diode Checks

 

METER LEAD

METER READING

(+)

 

(-)

 

 

R

 

DC+

0.5 V

S

 

DC+

0.5 V

T

 

DC+

0.5 V

R

 

DC-

infinite (OL)

S

 

DC-

Infinite (OL)

T

 

DC-

Infinite (OL)

U

 

DC+

0.5 V

V

 

DC+

0.5 V

W

 

DC+

0.5 V

U

 

DC-

infinite (OL)

V

 

DC-

Infinite (OL)

W

 

DC-

Infinite (OL)

DC+

 

R

Infinite (OL)

DC+

 

S

Infinite (OL)

DC+

 

T

Infinite (OL)

DC-

 

R

0.5 V

DC-

 

S

0.5 V

DC-

 

T

0.5 V

DC+

 

U

Infinite (OL)

DC+

 

V

Infinite (OL)

DC+

 

W

Infinite (OL)

DC-

 

U

0.5 V

DC-

 

V

0.5 V

DC-

 

W

0.5 V

NOTE: Digital meters require a special diode check function because the current sourced by the meter during a normal resis- tance (Ohms) test is too low to accurately test a diode. Make sure the meter is set to the diode test function. Voltage readings may not be exact as shown in above tables, but look for consistency during each of the 4 tests. When performing a test that should return infinity (OL) as shown in above tables, you may see a value slowly climbing toward infinity. This is a result of the meter charging a capacitor and is normal.

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Contents Start-Up and Service Instructions Contents A19-1842 A19-1831A19-1814 1832 A19A19-1833 Wire Lugs A19-1834Parameter Default Value VFD ConfigurationsA19 1846 A19-1921 TB1 I/O Terminal DesignationsA19-1836 A19-18351815 Enet Drive Status Indicator DescriptionsName Color State Description LinkA19-1844 A19-1925Prestart Icvc Alert CodesMessage AlertRUN Capacity LimitedSensor Alert FaultPrimary Secondary Primary Cause Additional CAUSE/REMEDY LOW OILVFD Speed Alert LossCommunication System AlertIcvc Alarm Codes Failure to StopProtective Limit 235 233234 236Unused Unused StateSensor Fault VFD GatewayCode Fault Type Description Corrective Action On VFDVFD Hist Screen None113 Hist ScreenNone 124Diode Checks Meter Lead Meter ReadingA19-1814Fig Check DC Bus Terminals A19-1831Fig Open Access DoorFrames 6 and 7 Power Terminal Block A19-1816Fig Removing EnclosureA19-1838 A19-1837A19-1817A19-1818 Comm Card A19-1819CB2 FU1-FU3 PT1 Secondary Side Toward Door A19-1847CR1 EA1 Line CR6 CB1 TB4 TB4 Dist SideA19-1848 Frame 6 PartsAppendix a Wiring Schematics Chiller Control Schematic A19-1946RHS A19-1947Hgbp UPCA19-1966 A19-1967 ShldA48-8578 A48-8579Table B Baud Selection Table Appendix B Optional Bacnet Communications WiringTable a SW3 Protocol Switch Settings For MS/TP A48 8580Table C MS/TP Wiring Recommendations A48-8582Rmcorp Wiring Specifications Recommended Vendors and Part NumbersCMP LED Status Table E LED Status IndicatorsRUN LED Error LED Status RunObject ID Object Name CHW Page Copyright 2011 Carrier Corporation

19XRV specifications

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