Carrier 19XRV specifications A19-1921, TB1 I/O Terminal Designations

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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

Vavg

=

(VAB + VBC + VCA)

 

 

3

Imbalance %

=

(Vmax – Vmin) x 100

 

 

Vavg

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 ground fault occurs, then do the following:

a.Check for a ground in the motor or motor wiring.

b.Check for damage to wiring insulation and that wiring is dry.

c.Verify the motor wiring is separated from ground and there is no connection between phases.

d.Check for failed IGBTs.

10.If an Overcurrent fault occurs, then do the following:

a.Check for excessive load and verify load limit set- tings on the ICVC.

b.Check motor and wiring insulation.

c.Check parameter settings on VFD_CONF screen in the ICVC.

Check Internal Jumpers — On the Main VFD Con- trol board there are two jumpers labeled J1 HARDWARE EN- ABLE and J2 SAFETY ENABLE. J1 should be removed and J2 should be in place. See Fig. 10.

There are two jumper wires that connect a particular termi- nal to chassis ground. The MOV and AC EMI jumper should be connected to the PE-A terminal. The COMMON MODE CAPACITORS to GROUND jumper should be connected to a standoff rather than the PE-B terminal.

Use the recommended tools as follows when connecting jumper wires in Frame 6 and in Frame 7:

•Recommended torque (screws and nuts) = 1.36 N·m (120.0 lb·in)

•Recommended hex socket = 7 mm

•Recommended screwdriver = T20 star type

See Fig. 11A and Fig. 11B for the correct positions of the jumpers.

 

 

LEGEND

NO.

NAME

DESCRIPTION

1

HIM Connector

DPI Port 1 (HIM Cradle) connection.

2

Fan Connector

Power supply for internal cooling fan

 

(Frames 2 & 3).

 

 

 

Battery

User installed CR1220 lithium coin cell

 

Receptacle

battery provides power to the Real Time

3

 

Clock (Optional, not supplied).

 

 

 

 

 

4

DPI Port 2

Cable connection for handheld and

 

remote HIM options.

 

 

5

Embedded EtherNet/

Rotary switches for setting lowest octet

IP Address Selectors

of EtherNet address (forces address to

 

 

192.168.1.xxx).

6Embedded EtherNet/ Network cable connection. IP Connector

7

Jumper J2 SAFETY

Safety enable jumper. Removed when

 

safety option is installed.

 

 

8

Jumper J1 ENABLE

Hardware enable jumper. Removed

 

when a hardware enable configuration is

 

 

utilized.

9

TB1

I/O terminal block.

a19-1921

 

 

TB1 I/O Terminal Designations

FIXED I/O

TERMINAL

NAME

DESCRIPTION

 

Di 0ac

Digital Input 120V AC

Connections for AC power supply.

Di 0ac

Di C

Digital Input Common

Digital input common

Di 0dc

Digital Input 24V DC

Connections for DC power supply.

Di C

Di 0dc

+24V

+24 Volt Power

Connections for drive supplied 24V power.

+24V

 

24 Volt Common

 

 

24VC

 

24VC

 

 

IMPORTANT: Wiring to pluggable terminal block connectors should be supported by wire ties or other means to help pre- vent unintentional disconnection

Fig. 10 — PF755 Main Control Board

7

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Contents Start-Up and Service Instructions Contents A19-1842 A19-1831A19-1814 1832 A19A19-1833 A19-1834 Wire LugsParameter Default Value VFD ConfigurationsA19 1846 TB1 I/O Terminal Designations A19-1921A19-1836 A19-18351815 Link Drive Status Indicator DescriptionsName Color State Description EnetA19-1925 A19-1844Alert Icvc Alert CodesMessage PrestartLimited RUN CapacityLOW OIL FaultPrimary Secondary Primary Cause Additional CAUSE/REMEDY Sensor AlertSystem Alert LossCommunication VFD Speed AlertFailure to Stop Icvc Alarm CodesProtective Limit 236 233234 235Unused State UnusedVFD Gateway Sensor FaultHist Screen None Fault Type Description Corrective Action On VFDVFD Code124 Hist ScreenNone 113Meter Lead Meter Reading Diode ChecksA19-1816Fig Removing Enclosure A19-1831Fig Open Access DoorFrames 6 and 7 Power Terminal Block A19-1814Fig Check DC Bus TerminalsA19-1838 A19-1837A19-1817A19-1818 A19-1819 Comm CardTB4 Dist Side A19-1847CR1 EA1 Line CR6 CB1 TB4 CB2 FU1-FU3 PT1 Secondary Side Toward DoorFrame 6 Parts A19-1848A19-1946 Appendix a Wiring Schematics Chiller Control SchematicUPC A19-1947Hgbp RHSA19-1966 Shld A19-1967A48-8579 A48-8578A48 8580 Appendix B Optional Bacnet Communications WiringTable a SW3 Protocol Switch Settings For MS/TP Table B Baud Selection TableA48-8582 Table C MS/TP Wiring RecommendationsRmcorp Wiring Specifications Recommended Vendors and Part NumbersCMP Run Table E LED Status IndicatorsRUN LED Error LED Status LED StatusObject ID Object Name CHW Page Copyright 2011 Carrier Corporation

19XRV specifications

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