Carrier 19XRV - Gateway Status Leds

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102

release the force on SERVICE ONTIME after the desired

value has been set.

9. Perform the guide vane calibration procedure (in Control

Test). Check and recalibrate pressure transducer readings

(refer to page 68). Check that the CURRENT TIME and

DATE in the TIME AND DATE screen are correct.

DPI Communications Interface Board Status LEDs

— VFD

status can be determined from the status LEDs on the DPI

Communications Interface Board shown in Fig. 46. The DPI

Board is mounted on the front of the VFD power module in a

vertical orientation.

Gateway Status LEDs — The RS485 VFD Gateway

provides a communication link between the CCM and ICVC

SIO bus to the VFD Drive Peripheral Interface (DPI) board.

The SIO bus communicates with the Gateway through VFD

connector A32. See Fig. 47.

The Gateway has four status indicators on the top side of the

module.

RECTIFIER LED

INVERTER LED

DPI COMMUNICATIONS INTERFACE BOARD

INVERTER STATUS LIGHT

RECTIFIER STATUS LIGHT

INVERTER AND RECTIFIER CONTROL BOARD FAILURE STATUS LIGHT PATTERNS

Fig. 46 — DPI Communications Interface Board Status LEDs

COLOR STATE DESCRIPTION

Green

Flashing Drive ready, but not running and no faults are present.

Steady Drive running, no faults are present.

Yellow

Flashing The drive is not ready. A VFD start inhibit is in effect. Normal condition when chiller not running because the ICVC has issued a stop command.

Steady An alarm condition exits. Check VFD FAULT CODE in ICVC VFD_STAT screen.

Red

Flashing A fault has occurred. Check VFD FAULT CODE in ICVC VFD_STAT screen.

Steady A non-resettable fault has occurred. Check VFD FAULT CODE in ICVC VFD_STAT screen.

Red Inverter

Green Rectifier

Steady VFD Gate Kill circuit has opened because the compressor high pressure switch has opened.

COLOR STATE DESCRIPTION

Green

Flashing Rectifier ready, but not running and no faults are present.

Steady Rectifier running, no faults are present.

Yellow

Flashing Rectifier is not ready. A VFD start inhibit is in effect. This is a normal state if the inverter is not running and/or the precharge contacts are open.

Steady Rectifier alarm condition exits. Check VFD FAULT CODE in ICVC VFD_STAT screen.

Red

Flashing Rectifier fault has occurred. Check (VFD FAULT CODE in ICVC VFD_STAT screen.

Steady A non-resettable fault has occurred. Check VFD FAULT CODE in ICVC VFD_STAT screen.

Red Inverter

Green Rectifier

Steady VFD Gate Kill circuit has opened because the compressor high pressure switch has opened.

COLOR DESCRIPTION

Red/Green Alternating Control board application firmware may be corrupt. Call Carrier Service.

Yellow/Green/Red

Repeating Pattern

Control board RAM failure or control board firmware may be corrupt. Call Carrier Service.