Roberts Gorden NEMA 4 Variable Frequency Drive VFD Enclosure Standard Models, Nema 4 Models

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2 HP, 230 V Drive (used with EP-303 pump) (P/N VFD20230 or VFD20230N4)
Power Input: 208/240 V, 1 Ø, 50-60 Hz
Input Voltage Tolerance: +/- 10%
Amps: 18.4/16.0 A

SECTION 2: SPECIFICATIONS

2.3 Variable Frequency Drive (VFD)

2.3.1 Enclosure

Standard Models

Construction: 14 gauge painted steel, mounting panel included, left-hinged door, vented.

Dimensions:

12" w x 14 3/8" h x 8" d

1 HP, 460 V Drive (used with EP-203 pump)

(P/N VFD75460 or VFD75460N4)

Protection:

UL 50 Type 1, NEMA Type 1

Power Input:

400/480 V, 3 Ø, 50-60 Hz

NEMA 4 Models

Input Voltage Tolerance: +/- 10%

Description:

Drive assembly and components fully

Amps:

3.0/2.5 A

2 HP, 460 V Drive (used with EP-303 pump)

 

factory assembled inside NEMA 4

 

enclosure. Enclosure dimensions and

(P/N VFD20460 or VFD20460N4)

 

construction vary by model.

Power Input:

400/480 V, 3 Ø, 50-60 Hz

Construction: VFD75115N4, VFD20230N4 and

Input Voltage Tolerance: +/- 10%

Amps:

4.8/4.0 A

 

VFD20460N4 enclosures are

 

 

 

 

16 gauge painted steel, left hinged

 

 

 

door, non-vented.

 

 

 

VFD75230N4 and VFD75460N4

 

 

 

enclosures are 14 gauge steel, left

 

 

 

hinged door, non-vented.

 

 

Dimensions:

VFD75115N4 20" x 16" x 10"

 

 

 

VFD75230N4 14" x 12" x 8"

 

 

 

VFD20230N4 20" x 16" x 10"

 

 

 

VFD75460N4 16" x 14" x 10"

 

 

 

VFD20460N4 20" x 16" x 10"

 

 

Protection:

NEMA 3R/4/12/13

 

 

2.3.2 Electrical

Power Output: 230 V, 3 Ø, 0-60 Hz

(for 115 V and 230 V models)

460V, 3 Ø, 0-60 Hz (for 460 V models)

Speed Reference

Follower:

0-10 Vdc

UL Standard: Industrial Controls Equipment

Ambient

Operating Temp.: 32°F - 104°F (0°C-40°C)

.75 HP, 230 V Drive (used with EP-203 pump) (P/N VFD75230 or VFD75230N4)

Power Input:

208/240 V, 1 Ø, 50-60 Hz

Input Voltage Tolerance: +/- 10%

Amps:

6.9/6.0 A

1HP, 120 V Drive (used with EP-203 pump) (P/N VFD75115 or VFD75115N4)

Power Input: 120 V, 1 Ø, 50-60 Hz

Input Voltage Tolerance: +/- 10%

Amps:

16.6 A

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Contents Owner InstallerPage Roberts-Gordon LLC Page Table of Figures Page Introduction Carton Contents Urvsc Ultravac Satellite Controller Inside View Urvccm Ultravac Central Controller with ModemUrvccr Ultravac Central Controller with RS-485 Converter Safety Manpower RequirementsExample Site Layout Example Site Layout Specifications Relay Board ControlController Enclosure Variable Frequency Drive VFD Enclosure Standard Models Nema 4 ModelsElectrical Variable Frequency Drive Components Factory pre-wiring shown Preparation InstallationIndoor Sensor Cable Cable Requirements 3.3.1 Line Power SupplyControl Wiring 5 RS-485 Communication Wire Between ControllersVariable Frequency Drive Requirements Variable Frequency Drive MountingOutside Air Supply Indoor Sensor PlacementCentral Controller Communication Equalization Wiring Typical External DiagramsBMS Enable Optional 12060 Hz Pump 230 46060 Hz See Note To Satellite ControllerFor 115 V For 460 Input Input VFD VFD models Supply Input VFD model shown See NoteCommunications TCP/IP communication moduleDedicated Phone Line for Central Controller Modem + Central Controller RS-485 Converter for Central ControllerTo Controller #2 Set to onTCP/IP Communication Module Mounting Red + RJ-11 Jack Black RS-45 Jack Module power wireOhm resistor included Ethernet Cable To LANDirect Connect Order 1,2,3,4,5,6,7,8 Switch OrderController Number Values 1=ON, 0=OFFRepeater Repeater WiringVFD Parameter Settings For Use With Variable Frequency Drive ProgrammingRoberts Gordon Ultravac Altering VFD Parameters Parameter Factory New Number Name DefaultCommissioning the Corayvac System Setting The Corayvac End Burner VacuumEnd Vent Vacuum Approximate reading after adjustingPossible Damper Couplings’ Locations Parameter Factory New Number Name Default Setting Replacement Parts Roberts Gordon Ultravac Controller Replacement PartsDescription Part Number Variable Frequency Drive Components Diagram Variable Frequency Drive Replacement PartsVariable Frequency Drive VFD Control Board Power LED4 24V Power 1 a Fuse 3 10080122 Eprom ChipVariable Frequency Drive 25 a or 10 a Fuse Troubleshooting Flow ChartTroubleshooting Flow ChartYes control board 24 V output Yes Troubleshooting Flow ChartTroubleshoot Ends Troubleshooting Flow ChartWarranty is Void if ROBERTS-GORDON will not PAY forLimitations on Authority Representatives

NEMA 4 specifications

The Roberts Gordon NEMA 4 is a leading example of industrial heating technology, specifically designed for demanding environments. Known for its ruggedness and efficiency, it meets the needs of various industries, including manufacturing, warehousing, and food processing. The robust design ensures that it can operate efficiently in harsh conditions, making it a popular choice for facilities where moisture, dust, and other contaminants are common.

One of the standout features of the Roberts Gordon NEMA 4 is its weatherproof and dust-tight enclosure, which adheres to the NEMA 4 classification. This means that the unit can withstand water splashes and rain, making it suitable for outdoor installations or areas where water exposure is likely. The housing is constructed from durable materials that resist corrosion, ensuring longevity and reliability.

In terms of technology, the Roberts Gordon NEMA 4 utilizes advanced infrared heating, which provides direct and efficient heat transfer. This type of heating warms objects and surfaces rather than the surrounding air, allowing for faster heat-up times and enhanced energy efficiency. The units are equipped with high-output infrared emitters, which are designed to maximize radiant heat output while minimizing energy consumption.

The operational characteristics of the Roberts Gordon NEMA 4 are also noteworthy. The units are designed to be user-friendly, featuring intuitive controls that allow for easy temperature adjustments and monitoring. Furthermore, they come equipped with automatic safety features, including over-temperature protection and fail-safe shutdown mechanisms, which enhance operational safety.

Another advantage of the Roberts Gordon NEMA 4 is its versatility. It can be configured for various applications, including ceiling-mounted installations or wall-mounted setups, depending on the specific heating needs of a facility. This adaptability allows for efficient space utilization in warehouses and production areas.

The energy efficiency of the Roberts Gordon NEMA 4 translates into cost savings for businesses. By providing targeted heating where it is needed most, the units help reduce overall energy expenditures. Additionally, the longevity of the unit minimizes the frequency of replacements, contributing to long-term value.

In summary, the Roberts Gordon NEMA 4 is a highly effective industrial heating solution characterized by its robust design, advanced infrared technology, versatility, and energy efficiency. It is well-suited for challenging environments and has been embraced by industries that demand reliable and efficient heating solutions.