Table 3 Drive Status Indicator Descriptions

NAME

COLOR

STATE

DESCRIPTION

 

Green

Flashing

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

 

 

Steady

Drive running, no faults are present.

 

Yellow

Flashing

Drive is not running. A type 2 (non-configurable) alarm condition exists and the

 

 

 

drive cannot be started.

 

 

Steady

Drive is not running, a type 1 alarm condition exists. The drive can be started.

STS (Status)

Red

Flashing

A major fault has occurred. Drive cannot be started until fault condition is

 

 

cleared.

 

 

Steady

A non-resettable fault has occurred.

 

Red/Yellow

Flashing Alternately

A minor fault has occurred. When running, the drive continues to run. System is

 

 

 

brought to a stop under system control. Fault must be cleared to continue. Use

 

 

 

parameter 950 [Minor Flt Config] to enable. If not enabled, acts like a major

 

 

 

fault.

 

Green/Red

Flashing Alternately

Drive is flash updating.

 

None (Unlit)

Off

Adapter and/or network is not powered, adapter is not properly connected to

 

 

 

the network, or adapter needs an IP address.

 

Red

Flashing

An EtherNet/IP connection has timed out.

ENET

 

Steady

Adapter failed the duplicate IP address detection test.

Red/Green

Flashing Alternately

Adapter is performing a self-test.

 

 

Green

Flashing

Adapter is properly connected but is not communicating with any devices on

 

 

 

the network.

 

 

Steady

Adapter is properly connected and communicating on the network.

 

None (Unlit)

Off

Adapter is not powered or is not transmitting on the network.

LINK

Green

Flashing

Adapter is properly connected and transmitting data packets on the network.

 

 

Steady

Adapter is properly connected but is not transmitting on the network.

NOTES:

1.A Type 1 alarm indicates that a condition exists. Type 1 alarms are user configurable.

2.A Type 2 alarm indicates that a configuration error exists and the drive cannot be started. Type 2 alarms are not configurable.

VERIFYING THAT DC BUS CAPACITORS ARE DIS- CHARGED — The drive’s DC bus capacitors retain hazard- ous voltages after input power has been disconnected. Perform the following steps before touching any internal components:

1.Turn off and lock out input power. Wait five minutes.

2.Verify that there is no voltage at the drive’s input power terminals.

3.Measure the DC bus potential with a voltmeter while standing on a non-conductive surface and wearing insu- lated gloves (1000 V). Measure the DC bus potential. See Fig. 5 for the 248-amp drive and Fig. 6 for the 361 and 477-amp drives. The voltage between DC+ and DC-, and from each DC terminal to the chassis must be zero before proceeding.

4.Once the drive has been serviced, reapply input power.

HIGH TEMPERATURE ALARMS — Coolant flow through the cold plate is controlled by an orifice in the refriger- ant line leaving the cold plate. The orifice looks like one of the O-ring face seal connectors and in fact is used as one of the connections on the coolant tubing. The difference is that the passage through the fitting is 0.375 in. (9.5 mm). If the orifice is present and condenser liquid flow is present, the liquid will flash to cooler temperature at the orifice. This temperature dif- ference is great enough to be easily felt.

MAIN CONTROL BOARD (MCB) COMPONENTS — Figure 13 shows the drive module with the cover removed. To access the control boards, loosen the screw on the face of the keypad mount and swing the keypad mount upward.

The components on the main control board (MCB) are shown in Fig. 14. Note the location of the terminals labeled MCB I/O. The high pressure switch is wired to these terminals as shown in Fig. 15. In the event of a high condenser pressure alarm, the connections at these terminals should be checked and tightened if necessary.

A typical wiring schematic is shown in Appendix A.

SWING UP KEY PAD

MOUNT TO ACCESS

CONTROL BOARDS

a19-1843

Fig. 13 — Drive Module with Cover Removed

9

Page 9
Image 9
Carrier 19XRV specifications Drive Status Indicator Descriptions, Name Color State Description, Enet, Link

19XRV specifications

The Carrier 19XRV is a cutting-edge rooftop chiller designed to provide reliable and efficient cooling solutions for a wide range of applications, including commercial buildings and industrial facilities. This advanced system integrates the latest technologies and innovative features to ensure optimal performance, energy efficiency, and ease of use.

One of the most prominent features of the 19XRV is its advanced inverter-driven compressor technology. This allows the chiller to adjust its capacity seamlessly based on the building's cooling demand. By varying the speed of the compressor, the 19XRV maximizes energy efficiency and minimizes operational costs, especially during partial load conditions. This capability not only enhances comfort but also contributes to reduced energy consumption, making it a sustainable choice for environmentally conscious users.

In addition to the inverter technology, the 19XRV incorporates a microchannel coil design. This design optimizes heat exchange efficiency and reduces the refrigerant charge, which is an essential factor in lowering greenhouse gas emissions. The microchannel coils also allow for more compact dimensions, making installation easier and maximizing rooftop space usage.

Another significant aspect of the Carrier 19XRV is its robust controls system. Equipped with Carrier’s advanced ComfortLink™ controls, this chiller offers precise monitoring and control over its operation. Users can easily integrate the chiller into building management systems for real-time data access and efficiency analytics. This connectivity ensures that operators can make informed decisions to optimize performance continuously.

The 19XRV also includes features aimed at enhancing reliability and durability. Its structural design incorporates corrosion-resistant materials, allowing the unit to withstand harsh environmental conditions. This reliability translates to lower maintenance requirements and extended equipment lifespan, providing excellent value over time.

Moreover, the chiller is designed for quiet operation, making it suitable for applications where low noise levels are essential. Sound-dampening measures ensure that the 19XRV can be utilized in urban environments or near sensitive areas without causing disturbances.

In conclusion, the Carrier 19XRV is a state-of-the-art rooftop chiller that combines efficiency, technology, and durability. Its inverter-driven compressor, microchannel coil design, advanced controls, and robust construction make it an ideal choice for those looking to maintain comfort while minimizing energy usage and environmental impact. Whether for commercial or industrial applications, the 19XRV stands out as a reliable and innovative cooling solution for the modern age.