Generac XVT076A03, XVT114G03 Installation Manual

Page 1

Installation Manual

(000209b)

WARNING

Loss of life. This product is not intended to be used in a critical life support application. Failure to adhere to this warning could result in death or serious injury.

Generac PWRcell™ Inverters

XVT076A03

XVT114G03

009954

https://pwrfleet.generac.com

1-888-GENERAC

Para español, visita: Pour le français, visiter: http://www.generac.com/service-support/product-support-lookup

SAVE THIS MANUAL FOR FUTURE REFERENCE

http://www.generac.com/service-support/product-support-lookup

(888-436-3722)

WWW.GENERAC.COM

1-888-GENERAC

(1-888-436-3722)

Page 2

Use this page to record important information about your Generac Product

(000393a)

WARNING

CANCER AND REPRODUCTIVE HARM

www.P65Warnings.ca.gov.

Record the information found on your unit data label on this page. See Serial Number Location.

When contacting an Independent Authorized Service Dealer (IASD) or Generac Customer Service, always supply the complete model number and serial number of the unit.

Table 1: PWRcell Inverter Important Information

Unit Model Number

Unit Serial Number

Date Purchased

Commissioning Date

ii Installation Manual for Generac PWRcell Inverter

Page 3

Section 1: Safety Rules & General

Information

Introduction ..........................................................1

Safety Rules .........................................................1

General Hazards ..................................................2

Electrical Hazards ................................................3

Section 6: Commissioning and Setup

System Configuration ....................................... 25

General Information .......................................... 25

Commissioning the System ............................. 25

Registration ....................................................... 25

Connecting PWRcell Inverter to AC Power ..... 26

Section 2: General Information

Specifications ......................................................5

Serial Number Location ......................................6

Unit Dimensions .................................................6

Component Locations .........................................6

About PWRcell Inverters .....................................6

Inverter Control Panel .........................................7

Section 3: Location and Compliance

Location ................................................................9

Compliance ..........................................................9

Rapid Shutdown ..................................................9

Voltage and Frequency Trip Thresholds .........10

Section 4: Installing PWRcell Inverter

PWRcell Inverter Dimensions and Mounting

Clearances ..........................................................11

Mounting Bracket Dimensions .........................11

Mounting the Inverter ........................................12

Selecting Inverter System Mode ...................... 26

Configuring Inverter Settings ........................... 27

Adjusting Inverter Settings .............................. 27

Selecting Inverter Compliance Setting

(optional) ............................................................ 28

Selecting ESS Grid Usage Mode (Optional) .... 28

Enabling REbus Devices .................................. 28

REbus Beacon Setup ........................................ 29

Manually Configuring IP Settings .................... 32

Commissioning Multiple Inverter Systems ..... 33

Installer Configuration Tool ............................. 35

Section 7: Maintenance

Service ................................................................ 39

Accessing Wiring Compartment ...................... 39

Replacing Fuses ................................................ 39

Section 8: Troubleshooting

General Troubleshooting .................................. 41

Section 5: Electrical Connections

PWRcell Inverter Wiring Compartment ............13

Accessing Wiring Compartment ......................14

Knockout Dimensions and Locations .............14

Wiring Guidelines ..............................................15

Grounding Bar Wiring .......................................16

DC Wiring ...........................................................17

AC Wiring ...........................................................17

Protected Load ...................................................18

Current Transformers (CTs) .............................20

Other Accessories .............................................24

Owner’s Manual for Generac PWRcell Inverter iii

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iv Owner’s Manual for Generac PWRcell Inverter

Page 5

Safety Rules & General Information

(000100a)

Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.

WARNING

(000001)

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

(000002)

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

(000003)

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Section 1: Safety Rules & General Information

Introduction

Thank you for purchasing a Generac PWRcell™ product. The Generac PWRcell inverter is a storage-ready inverter that connects to the PV Link™ optimizers and PWRcell batteries to form the Generac PWRcell system.

This manual provides instructions for installing the PWRcell inverter, including mounting, wiring, and battery integration information. The companion document to this installation manual is the Generac PWRcell Inverter Owner’s Manual. See the owner’s manual for complete information on programming and configuring the PWRcell inverter.

The information in this manual is accurate based on products produced at the time of publication. The manufacturer reserves the right to make technical updates, corrections, and product revisions at any time without notice.

Read This Manual Thoroughly

Throughout this publication, and on tags and decals affixed to the unit, DANGER, WARNING, CAUTION, and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Alert definitions are as follows:

If any section of this manual is not understood, contact the nearest Independent Authorized Service Dealer (IASD) or Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or visit www.generac.com for assis- tance. The owner is responsible for correct maintenance and safe use of the unit.

This manual must be used in conjunction with all other supporting product documentation supplied with the product.

SAVE THESE INSTRUCTIONS for future reference. This manual contains important instructions that must be followed during placement, operation, and maintenance of the unit and its components. Always supply this manual to any individual that will use this unit, and instruct them on how to correctly start, operate, and stop the unit in case of emergency.

Safety Rules

The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The alerts in this manual, and on tags and decals affixed to the unit, are not all inclusive. If using a procedure, work method, or operating technique that the manufacturer does not specifically recommend, verify that it is safe for others and does not render the equipment unsafe.

Installation Manual for Generac PWRCell Inverter 1

NOTE: Notes contain additional information important to a procedure and will be found within the regular text of this manual.

These safety alerts cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the action or service are essential to preventing accidents.

How to Obtain Service

For assistance, contact the nearest Independent Authorized Service Dealer (IASD) or Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or visit

www.generac.com.

When contacting an IASD or Generac Customer Service, always supply the complete model and serial number of the unit as given on its data decal located on the unit. Record the model and serial numbers in the spaces provided on the front cover of this manual.

Page 6

Safety Rules & General Information

(000188)

DANGER

Electrocution. Do not wear jewelry while working on this equipment. Doing so will result in death or serious injury.

(000191)

DANGER

Automatic start-up. Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury.

(000187)

WARNING

Electrocution. Potentially lethal voltages are generated by this equipment. Render the equipment safe before attempting repairs or maintenance. Failure to do so could result in death or serious injury.

Risk of injury. Do not operate or service this machine if not fully alert. Fatigue can impair the ability to operate or service this equipment and could result in death or serious injury.

(000215a)

WARNING

(000209b)

WARNING

Loss of life. This product is not intended to be used in a critical life support application. Failure to adhere to this warning could result in death or serious injury.

(000640)

WARNING

Equipment damage. Connecting inverter to electric utility grid must only be done after receiving prior approval from utility company. Failure to do so could result in equipment or property damage.

(000155a)

WARNING

Electric shock. Only a trained and licensed electrician should perform wiring and connections to unit. Failure to follow proper installation requirements could result in death, serious injury, and equipment or property damage.

(000182a)

WARNING

Equipment damage. Only qualified service personnel may install, operate, and maintain this equipment. Failure to follow proper installation requirements could result in death, serious injury, and equipment or property damage.

Equipment damage. Connect only to REbus-compatible devices to the DC bus. Never connect to any other DC power source. Connecting to other DC power sources could result in equipment damage.

(000598a)

CAUTION

General Hazards

• Connecting the PWRcell inverter to the electric util-

ity grid must only be done after receiving prior approval from the utility company.

• Only competent, qualified personnel should install,

operate, and service this equipment. Strictly comply to local, state, and national electrical and building codes. When using this equipment, comply with regulations established by the National Electrical Code (NEC), CSA Standard; the Occupational Safety and Health Administration (OSHA), or the local agency for workplace health and safety.

• Protection against lightning surges in accordance

with local electric codes is the responsibility of the installer.

NOTE: Lightning damage is not covered by warranty.

• Never work on this equipment while physically or

mentally fatigued.

• Any voltage measurements should be performed

with a meter that meets UL3111 safety standards, and meets or exceeds overvoltage class CAT III.

2 Installation Manual for Generac PWRCell Inverter

Page 7

Electrical Hazards

(000104)

DANGER

Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury.

(000604)

Electrocution. PWRcell Battery front cover should be removed by a qualified technician only. Removing the front cover could result in death, serious injury, equipment or property damage.

DANGER

(000145)

DANGER

Electrocution. In the event of electrical accident, immediately shut power OFF. Use non-conductive implements to free victim from live conductor. Apply first aid and get medical help. Failure to do so will result in death or serious injury.

(000599)

Electrocution. Turn battery disconnect OFF and de-energize REbus before touching terminals. Failure to do so will result in death, serious injury, equipment and property damage.

DANGER

(000152)

DANGER

Electrocution. Verify electrical system is properly grounded before applying power. Failure to do so will result in death or serious injury.

Safety Rules & General Information

Installation Manual for Generac PWRCell Inverter 3

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Safety Rules & General Information

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4 Installation Manual for Generac PWRCell Inverter

Page 9

General Information

Section 2: General Information

Specifications

Description Units XVT076A03 XVT114G03

Max. cont. grid-tied AC power @ 122°F (50ºC) kW 7.6 11.4 Max. cont. islanded AC power @ 104°F (40°C)

with single 6 module battery cabinet Max. cont. islanded AC power @ 104°F (40°C)

with 2 battery cabinets (8 modules minimum) Max. cont. Islanded AC power @ 122°F (50°C) kW 8.8 Range 7.5 to 8.8* Peak motor starting current (2 sec) A rms 50 Normal output frequency AC Hz 60 Grid Voltage Line to Neutral (L-N) VAC 120 Grid Voltage Line to Line (L-L) VAC 240 208 Peak efficiency % 97.3 97.7 CEC weighted efficiency % 96.5 97.5 AC terminals wire size AWG 14 to 6 DC terminals wire size AWG 18 to 6 STOP terminals wire size AWG 28 to 16 Weight lb (kg) 62.7 (28.4) Thermal management - forced convection Weatherization rating - NEMA Type 3R Enclosure Material - powder-coated steel

kW 9.0 9.0

kW 11.0 Range 9.6 to 11.0*

Description Units Min Nominal Max

REbus voltage V dc 360 380 420 REbus current

REbus Input short circuit current REbus Input source backfeed current to input source V dc 30 Output power factor rating AC - 1 Operating voltage range AC, XVT076A03 (L-N) V rms 108 120 130 Operating voltage range AC, XVT076A03 (L-L)

Operating voltage range AC, XVT114G03 (L-N) V rms 108 120 130 Operating output voltage range AC, XVT114G03 (L-L) V rms 184 208 228 Continuous output current AC grid-tied A rms 32 PCS controlled current grid-tied A rms 32 Continuous output current AC islanded A rms 42 Output fault current duration A / ms 50 / 2,000

Full Power operating ambient temperature range Utility interconnection voltage and frequency trip limits and trip

times Trip voltage and frequency limits

Trip voltage accuracy

Trip time accuracy

Peak performance

Inverter limits its REbus current to adhere to its AC power rating. Total REbus current capability from multiple REbus

sources may safely exceed this value as the inverter safely limits the amount utilized.

Rating for one DC input. Four total.

Includes ambient temperature rising from inverter operation.

* In Island mode XVT114G03 Protected loads only supply 2 phases 120 VAC L-N, 208 L-L which results in lower power than in grid tied 3 phase mode. The low value of the range is for full L-L loading while high value of the range is full L-N loading.

V dc

V dc 30

V rms 216 240 260

°F (°C) -4 (-20) +122 (+50)

See

Voltage and Frequency Trip Thresholds for more

information.

% 2% +/- 2 cycles

Installation Manual for Generac PWRcell Inverter 5

Page 10

General Information

Serial Number Location

Refer to Figure 2-2 to locate unit serial number (D). Record the information from this tag in Table 1: PWRcell

Inverter Important Information on the inside front cover

of this manual.

Unit Dimensions

009955

Figure 2-1. Unit Dimension

24-3/4 in (628 mm)

19-3/8 in (491 mm)

8-3/8 in (214 mm)

Component Locations

Figure 2-2. Component Locations

A Control Panel

B Intake Filter

C Exhaust Vent

D Serial Number Tag

009654

About PWRcell Inverters

The PWRcell inverter connects to PV Link™ optimizers and PWRcell batteries to form the PWRcell system for grid-interactive solar-plus-storage.

Upon the loss of grid power, PWRcell inverters disconnect from the grid and provide AC power to support protected loads when configured to do so. This capability is referred to as islanding.

All PWRcell products use the REbus™ 380 VDC nanogrid to connect to each other. The REbus nanogrid automates the flow of power to enable plug-and-play setup and operation of PWRcell equipment. For more information about REbus, visit www.generac.com.

In Figure 2-3 PWRcell inverter (E) is directly connected to PV Link optimizers (B) and PWRcell battery (C) on DC (REbus) lines (D). To the right of the inverter are AC lines: 120/240 VAC for grid and home loads (G) and protected loads (H).

6 Installation Manual for Generac PWRcell Inverter

Page 11

General Information

A Solar Panels D REbus G Loads

B PV Link E PWRcell Inverter H Protected Loads

C PWRcell Battery F Grid

Inverter Control Panel

REbus Inverter

Figure 2-3. Generac PWRcell System Example

REbus Status LED

REbus Status LED (C) communicates REbus nanogrid status through LED color.

• Green – all devices are functioning normally and

are generating power on REbus.

• Yellow – no PV Links are generating power from

PV on Rebus.

• Red – one or more REbus device has a fault that

requires attention before operation will continue.

NOTE: A red LED can also indicate a fault with the

Internet

REbus wiring itself. See display (A) for more information about the specific fault detected.

009893

Shutdown

(hold)

Figure 2-4. Inverter Control Panel

009894

Inverter LED

Inverter LED (D) communicates the status of the utility grid and / or inverter through LED color and state.

• Green – utility is connected and within normal

A LCD Display

B Navigation Keys

C REbus Status LED

D Inverter LED

E Shutdown

F Shutdown LED

G Internet LED

See Figure 2-4. The PWRcell system is controlled through the PWRcell inverter control panel. The inverter control panel is used for adjusting system settings and for interacting with devices.

Installation Manual for Generac PWRcell Inverter 7

operational voltage and frequency.

• Yellow – utility grid is not within normal conditions

and the inverter is in a waiting state. User intervention typically is not required. The inverter will restart as soon as the utility grid returns to normal conditions.

• Red – a serious fault with the utility grid or inverter

has been detected and user attention is required before the unit will resume operation. See display (A) for more information about the fault detected.

• No light – the inverter is disabled, islanded, or

powered off.

Page 12

General Information

(000600)

DANGER

Electrocution. Initiate a system-wide shutdown and turn the PWRcell DC Disconnect Switch OFF on all connected batteries before performing service. Failure to do so will result in death, serious injury, or equipment and property damage.

Internet LED

Internet LED (G) is illuminated when the inverter is connected to a router and has an IP address.

A blue Internet LED does not mean that the inverter has a connection to the Generac server.

Shutdown Mode

NOTE: A loss of grid power will not de-energize REbus

in a PWRcell system configured to island with enabled energy storage.

Shutdown button (E) activates a transition to shutdown system mode.

Disabled PWRcell equipment limits output voltages to a safe level for servicing. See Rapid Shutdown for more information.

NOTE: The AC section of the inverter will still be energized unless the building AC disconnect or main service breaker is shut off.

To enter shutdown, press and hold shutdown button (E).

In shutdown mode:

• PWRcell inverter will stop sourcing power to

REbus, and immediately disable all communicating power sources on REbus by sending a systemwide system mode change signal.

NOTE: Successful signal transmission relies upon proper configuration of PLM channels across REbus devices (PV Links and Batteries).

• Shutdown LED (F) will illuminate.

• Inverter screen (A) will display REbus DC bus volt-

age and text indicting shutdown mode has been initiated.

8 Installation Manual for Generac PWRcell Inverter

Page 13

Section 3: Location and Compliance

(000190)

DANGER

Loss of life. Property damage. Installation must always comply with applicable codes, standards, laws and regulations. Failure to do so will result in death or serious injury.

WARNING

Electrocution. Refer to local codes and standards for safety equipment required when working with a live electrical system. Failure to use required safety equipment could result in death or serious injury.

(000257)

(000182a)

WARNING

Location and Compliance

Location

When installing the PWRcell inverter, consider the following:

• The unit can be installed in indoor or outdoor loca-

tions.

• The inverter installation location must meet the

working space requirements in NEC Article 110.26.

Compliance

Note on DC Wiring and the NEC

Some electricians or installers may be unfamiliar with DC wiring in a residential setting. Note the following:

• NEC 690.31 for DC PV circuits in buildings

• NEC 215.12(C)(2) for correct DC wiring identifica-

tion

Always adhere to applicable codes when marking and installing DC conductors. See

ing Coloring Convention. Mark or flag all conductors for

their polarity as appropriate.

• It is recommended that REbus (+) conductors NOT

be green, white, gray, blue, or black.

• It is recommended REbus (-) conductors NOT be

green, white, gray, or red.

Table 3-1. REbus DC Wiring Coloring Convention

Wire Color

REbus + (RE+) Red

REbus - (RE-) Black or Blue

Ground (GND) Green

Table 3-1: REbus DC Wir-

Follow all instructions included in this manual and use appropriate practices for all product wiring and installation.

Rapid Shutdown

The PWRcell Inverter is equipped with four DC disconnects to initiate the Photovoltaic Rapid Shutdown System (PVRSS). Each disconnect switch can be used to initiate Rapid Shutdown in compliance with NEC 690.12 for all PV Link and SnapRS units connected to that disconnect.

NOTE: If an additional DC disconnect is added, ensure the disconnect switch is DC rated for a minimum of 30 amperes, 450 volts.

To initiate the PVRSS:

• Open the inverter lid.

• Locate the four DC disconnects to the left of the

Generac Power Core.

• Turn all disconnects with connected PV sources to

the “off” position.

• PV Links will open all SnapRS devices within 30

seconds controlling all PV conductors within the array to less than 80V, and all conductors leaving the array to below 30V.

NOTE: Where the DC disconnect(s) in the inverter are used as the Rapid Shutdown initiation device, proper labeling is required for the exterior of the inverter lid to indicate to first responders where to initiate Rapid Shutdown.

Installation Manual for Generac PWRcell Inverter 9

Page 14

Location and Compliance

Voltage and Frequency Trip Thresholds

This unit or system is provided with fixed trip limits and shall not be aggregated above 30 kW on a single point of common connection.

All PWRcell inverters are shipped from the factory in compliance with all UL1741 requirements, including IEEE1547. If permission to operate (PTO) is dependent on compliance to a specific utility standard, follow the steps covered in Installer Configuration Tool section in this manual.

Table 3-2. Voltage Trip and Frequency Thresholds

Voltage Trip Thresholds Frequency Trip Thresholds

Voltage Trip Thresholds

See Table 3-2 for the default fixed voltage trip setpoints. All over voltage and under voltage trip conditions result in a 300-second restart delay time after the trip threshold has been exceeded for the listed number of cycles.

Frequency Trip Thresholds

See Table 3-2 for the default fixed frequency trip set- points. All over frequency and under frequency trip conditions result in a 300-second restart delay time after the trip threshold has been exceeded for the listed number of cycles.

Threshold

OV1 110 120 OF1 0.5 120

OV2 120 10 OF2 2 6

OV3 130 1 OF3 1.3 0

OV4 999* 1 OF4 0** 1

UV1 88 120 UF1 0.5 120

UV2 50 10 UF2 2 10

UV3 999* 1 UF3 0** 1

UV4 999* 1 UF4 0** 1

*Value of 999 indicates a disabled threshold for voltage trips **Value of zero indicates a disabled threshold for frequency trips

Threshold

(% of nominal)

No. of Cycles Threshold

Hz Over/

Under Nominal

No. of Cycles

10 Installation Manual for Generac PWRcell Inverter

Page 15

Section 4: Installing PWRcell Inverter

4 in

(10.16 cm)

28 in

(71.15 cm)

8 in

(20.32 cm)

28-1/2 in

(72.4 cm)

36 in

(91.44 cm)

8 in

(20.32 cm)

19-1/4 in

(48.9 cm)

8-1/2 in

(21.6 cm)

20 in

(50.8 cm)

8 in

(20.32 cm )

24-1/2 in

(62.23 cm)

16 in

(40.64 cm)

1-1/2 in

(3.81 cm)

2-3/8 in

(6.03 cm)

PWRcell Inverter Dimensions and Mounting Clearances

Installing PWRcell Inverter

Figure 4-1. PWRcell Inverter Dimensions and Mounting Clearances

Mounting Bracket Dimensions

Figure 4-2. Mounting Bracket Dimensions

010508

009990

Installation Manual for Generac PWRcell Inverter 11

Page 16

Installing PWRcell Inverter

(000641a)

CAUTION

Equipment damage. Mount inverter to a strong, stable surface. Never mount to drywall, plaster, or other non-structural wall treatments. Failure to mount inverter to a strong, stable surface could result in equipment or property damage.

Mounting the Inverter

1. Verify mounting location adheres to the following

requirements:

• Location must meet all PWRcell inverter

requirements listed in Section 3 of this manual. See Location and Compliance for more information.

• Inverter must be mounted upright on a vertical wall.

• Never obstruct intake or exhaust vents.

• Never allow water to enter intake or exhaust vents.

• Observe all mounting clearances. See PWRcell

Inverter Dimensions and Mounting Clearances.

2. Secure mounting bracket mounting surface through mounting holes.

• Fasteners must adequately secure the 62.7 lbs

(28.4 kg) inverter weight to the wall.

• Fasteners must be suitable for the mounting

surface.

• Fasteners must engage at least two studs or other

structural members.

• Mounting bracket has clearance holes for 1/4 in

fasteners with slots to accommodate different stud spacings.

3. See Figure 4-3. Insert mounting bracket tabs (A) into inverter body slot (B).

NOTE: Figure 4-3 is for illustration purposes only.

009991

Figure 4-3. Mounting Inverter onto Bracket

4. See Figure 4-4. Secure the bottom of the inverter to wall with two fasteners through mounting holes (C). Holes are spaced at 11 1/4 in from each other. Use anchors or blocking as needed.

009992

Figure 4-4. Mounting Holes

12 Installation Manual for Generac PWRcell Inverter

Page 17

Section 5: Electrical Connections

PWRcell Inverter Wiring Compartment

Electrical Connections

Figure 5-1. PWRcell Inverter Wiring Compartment

A PWRcell DC Disconnects H Authorized Generac Personnel Only

B REbus Bi-directional DC Terminals I STOP Terminals

C Internet Connection J Protected Loads Disconnect

D DC Main Fuses K AC Grid Connection Terminals

E Current Transformers (CTs) Accessory Ports L Protected Loads Terminals

F Automatic Transfer Switches (ATS) Accessory Port M Grounding Bar

G REbus Beacon Port N RGM PWR Gen Inhibit

011235

Installation Manual for Generac PWRCell Inverter 13

Page 18

Electrical Connections

(000600)

DANGER

(000642)

DANGER

Electrocution. Verify all system voltages are safe before wiring. Disconnect all AC and DC sources of power before touching terminals. Failure to ensure no dangerous voltages are present on conductors and terminals before wiring will result in death or serious injury.

Accessing Wiring Compartment

See

Figure 5-2. To access the wiring compartment:

1. Initiate an inverter shutdown.

2. Open all PWRcell DC disconnects (A). Verify DC

voltage reported on LCD screen has dropped to below 10VDC.

3. Disconnect AC Grid source from inverter. Wait for Inverter LCD screen to turn off.

Open inverter front cover by lifting the bottom to horizontal (B) and pushing inward (C).

5. Locate wiring compartment cover (D).

6. Remove five M4X10 screws (E) and wiring

compartment cover.

7. Verify all PWRcell DC and AC terminals are below 10V, using a multi-meter.

• Install reducing washers to accommodate smaller

conduit sizes.

• Install rain-tight or wet locations hubs in

compliance with UL514B.

Table 5-3. Combination Knockout Size and Quantity

Combination Knockout Size Quantity

3/4 in X 1 in 6

1/2 in X 3/4 in 7

0.575 in use only for LTE Modem Antenna 1

010238

Figure 5-2. Wiring Compartment

Knockout Dimensions and Locations

NOTE: All knockouts are combination knockouts, except

for the 1/4 in trade knockout at the top of the left side which is intended only for mounting an optional LTE modem antenna.

See Figure 5-3 for knockout locations and Table 5-3 for available knockout sizes and quantities.

When using knockouts:

14 Installation Manual for Generac PWRCell Inverter

Page 19

Electrical Connections

42 mm

1-21/32 in

50 mm

1-31/32 in

137 mm

5-13/32 in

97 mm

3-13/16 in

140 mm

5-17/32 in

2-13/16 in

72 mm

56 mm

2-7/32 in

40 mm

1-19/32 in

552 mm

21-23/32 in

50 mm

1-31/32 in

45 mm

1-3/4 in

55 mm

2-5/32 in

55 mm

2-5/32 in

26 mm

1 in

58 mm

2-9/32 in

62 mm

2-7/16 in

50 mm

1-31/32 in

48 mm

1-7/8 in

55 mm

2-5/32 in

55 mm

2-5/32 in

35 mm

1-3/8 in

10 mm

13/32 in

28 mm

1-3/32 in

(000642)

DANGER

(000599)

Electrocution. Turn battery disconnect OFF and de-energize REbus before touching terminals. Failure to do so will result in death, serious injury, equipment and property damage.

DANGER

Wiring Guidelines

Figure 5-3. Knockout Locations

• Proper installation techniques must be employed to

restrain service loops and to separate AC, DC and isolated circuits.

• All conductors must be rated for at least 420 V.

• Always use wiring methods in accordance with

National Electrical Code (ANSI/NFPA 70) or other applicable codes.

• Field terminals are for copper conductors only.

• Do not use field wiring leads smaller than 18 AWG.

• All field installed conductors within the unit are

sized in compliance with NEC Article 310.

• Torque all terminals as specified in Table 5-4.

011234

• The inverter shall be installed in accordance with

NEC Article 705.

Installation Manual for Generac PWRCell Inverter 15

Page 20

Electrical Connections

(000607a)

Equipment damage. Never connect REbus conductors to ground. Connecting REbus conductors to ground could result in equipment or property damage.

CAUTION

Table 5-4. Terminal Torques

Wiring Terminal Torque

AC terminals 13.3 to 15.9 in-lb (1.5 to 1.8 Nm)

DC terminals 12 in-lb (1.35 Nm)

Ground terminals 4 to 6 AWG: 45 in-lb (5 Nm)

8 AWG: 40 in-lb (4.5 Nm)

10 to 14 AWG: 35 in-lb (4 Nm)

STOP terminals 1.9 to 2.2 in-lb (0.22 to 0.25 Nm)

Grounding Bar Wiring

• Bond the inverter enclosure to the equipment

grounding conductor of the normal power source power feeder.

• The grounding bar provides central grounding for

up to 8 conductors.

• Input and output circuits are isolated from the

enclosure.

• The neutral conductor is not bonded to the

equipment ground terminal bar within the enclosure.

• The inverter and its connected PV and battery

sources are not separately derived systems.

• DC system grounding is critical for REbus

communications. REbus grounding wires are used as communications wires. Ensure the following REbus devices have a low resistance wired connection back to the inverter grounding terminal bar:

– PV Link

– PWRcell batteries

• Torque all terminals as specified in Table 5-5.

Table 5-5. Grounding Bar Wiring Terminal

Specifications

Wire Size (AWG) Torque

4-6 45 in-lb (5 Nm)

8 40 in-lb (4.5 Nm)

10 30 in-lb (4 Nm)

16 Installation Manual for Generac PWRCell Inverter

Page 21

DC Wiring

DANGER

Electrocution. Never touch terminals when inverter and PWRcell DC disconnects are ON. Doing so will result in death or serious injury.

(000646)

Equipment damage. Obey polarity markings when connecting REbus devices. Reverse-polarizing DC circuits could result in equipment or property damage.

WARNING

(000645)

WARNING

Equipment damage. Do not connect raw, unregulated battery output to inverter. Connect only REbus-compatible batteries. Connecting batteries that are not REbuscompatible could result in equipment or property damage.

Equipment damage. Do not connect PV string output directly to inverter. PV must be connected via Generac PWRcell PV Link. Connecting PV output directly to inverter could result in equipment or property damage.

CAUTION

(000644a)

(000647a)

CAUTION

Equipment damage. Connect only one wire to each DC wiring terminal. Doubling wires on a terminal could result in equipment or property damage.

Equipment damage. Connect only to REbus-compatible devices to the DC bus. Never connect to any other DC power source. Connecting to other DC power sources could result in equipment damage.

(000598a)

CAUTION

Protcd.

(3p)

Protcd.

Electrical Connections

Table 5-6. DC Wiring Terminal Specifications

(000686a)

Wire Size

18-6 AWG

(.75-10 mm)

Terminal

Temp Range

-40 to 266ºF

(-40 to 130ºC)

Wire Min

Temp Rating

194ºF

90ºC

Torque

12 in-lb

(1.35 Nm)

AC Wiring

NOTE: The installer is responsible for providing sufficient

overcurrent protection for the AC grid wiring terminals. The conductors and overcurrent protection device shall be sized in accordance with NEC Article 705 for the utility power connection. All other conductors shall be sized in accordance with NEC Article 310 and all other applicable NEC Articles.This system is equipped with a power control system (PCS). The PCS controlled AC grid conductors shall be protected with a suitably rated overcurrent device appropriately sized for the conductor ampacity.

• See Figure 5-4. The PWRcell inverter is equipped

with four AC grid connection terminals and three protected loads terminals.

• Use the top four terminals (A) for connection to the

utility grid.

NOTE: Disable REbus before returning PWRcell DC disconnects to ON position.

• Connect all REbus devices to the REbus bi-

directional DC terminals.

• Each terminal is protected by a 30 A two-pole

circuit disconnect.

• PWRcell DC disconnects indicate state and may

be used to disconnect DC circuits.

• PWRcell DC disconnects disconnect both

ungrounded DC conductors simultaneously.

• Torque all terminals as specified in Table 5-6.

Installation Manual for Generac PWRCell Inverter 17

NOTE: Use L3 terminal (B) with 3-phase inverters only.

• Use the bottom three terminals (C) for protected

loads output. See Protected Load.

009996

Figure 5-4. AC Wiring Terminals

• Torque all terminals as specified in Table 5-7.

Table 5-7. AC Wiring Terminal Specifications

Wire Size

Terminal Temp Range Up to 248ºF (120ºC)

Wire Min Temp Rating 194ºF (90ºC)

Torque

10 to 6 AWG

(5.26 mm

13.3 in-lb to 15.9 in-lb (1.5 Nm to 1.8 Nm)

to 13.3 mm2)

Page 22

Electrical Connections

(000648a)

CAUTION

Equipment damage. Never connect protected loads terminals to other sources of power, including any other inverter, the utility grid, or a generator. Doing so could result in equipment or property damage.

(000649a)

CAUTION

Equipment damage. Never connect protected loads output from inverters in parallel. Doing so could result in equipment or property damage.

Protected Load

For systems equipped with energy storage, the inverter’s protected loads terminals provide power during a grid outage.

NOTE: The protected loads terminals can only provide two phases of power in a three-phase system.

See Figure 5-5. By default, the grid powers any

protected loads connected to the inverter protected loads terminals. The PWRcell Inverter is configured to pass

grid power from AC grid terminals through to the

protected loads terminals. This includes when the inverter is disabled. During a grid outage, internal relays

inside the inverter isolate the AC grid connection and the inverter powers the protected loads only using PV array and battery power. This transition takes place in a fraction of a second.

NOTE: To create a protected loads panel, connect the circuits that require backup to a subpanel. Connect this subpanel to the protected loads terminals.

• The protected loads output can provide on the

order of 8 kW of continuous power. See

Specifications for exact values.

• The inverter can surge up to 50 A for motor starting

capabilities.

NOTE: Actual power output for protected loads during a grid outage will depend on system sizing for batteries and solar array.

NOTE: Backup power ratings are separate from the power ratings for PWRcell inverters while grid connected-

7.6kW and 11.4kW respectively.

A PV Array

B PWRcell Inverter

C Protected Loads Panel

D Protected Loads Disconnect

E AC Main Panel

F PWRcell Battery

G Utility

009997

Figure 5-5. Single Inverter Backup Installation with Protected Loads Panel

18 Installation Manual for Generac PWRCell Inverter

Page 23

Electrical Connections

NOTE: See Figure 5-6. On systems that do not include battery storage but battery storage is expected in the future, install a protected loads panel during inverter installation. The protected loads panel will be fed by the grid while the system operates in Grid Tie mode.

A PV Array

B PWRcell Inverter

C Protected Loads Panel

D Protected Loads Disconnect

E AC Main Panel

G Utility

Figure 5-6. Configuration for Adding Batteries Later

009998

Installation Manual for Generac PWRCell Inverter 19

Page 24

Electrical Connections

(000732)

Equipment damage. Only connect CTs provided by Generac. Never connect to any other CTs. Connecting to other CTs could result in equipment damage.

CAUTION

Connecting Ethernet

IMPORTANT NOTE: Generac requires all PWRcell system components to be connected to the Internet and to maintain such connection throughout the warranty period. Internet connectivity is established via the PWRcell inverter. By installing the PWRcell inverter and connecting it to the Internet, Customer agrees that Generac may remotely monitor the use and condition of the system and update the system's software and firmware, as necessary, without further notice. If the PWRcell system loses Internet connection for an extended period, Generac may not be able to provide important remote upgrades. In such cases, Generac may not be able to honor the full warranty.

• See PWRcell Inverter Wiring Compartment for

the Inverter Ethernet jack location.

• Use an appropriate cord grip or strain-relief

connector when running Ethernet cable with a conduit.

• Inverters connected by a router to a DHCP network

will automatically detect settings.

• For manual IP setup, see Manually Configuring

IP Settings.

NOTE: It is the installer’s responsibility to verify the Internet connection is reliable and secure. Generac recommends using a hardwired connection to provide Internet connectivity. Generac does not support using any wireless or power line carrier network devices. Use these devices at your own discretion.

NOTE: Ethernet cable run must be dedicated for the inverter. This cable may not be daisy-chained to another device, including another PWRcell inverter.

Current Transformers (CTs)

Current transformers (CTs) are required to use the Self Supply mode and to enable Import / Export Limiting capability. CTs are also required where setting a specific ESS Grid Usage Mode. CTs also allow the inverter to provide information on utility consumption through the PWRcell inverter control panel and the PWRview monitoring app.

Connecting Current Transformers

•

See Figure 5-7. Install CTs around the main service conductors between the service meter and point of interconnection with subsequent service entrance panel/device.

• Install one current transformer per phase:

– Install two CTs for split phase grids.

– Install three CTs for three-phase grids.

A PV Array

B PWRcell Inverter

C Protected Loads Panel

D Protected Loads Disconnect

E AC Main Panel

F PWRcell Battery

G Current Transformers (CTs)

H Utility

Figure 5-7. Connecting Current Transformers (CTs)

20 Installation Manual for Generac PWRCell Inverter

009997

Page 25

Electrical Connections

CT2 ‒

CT1 ‒

CT1+

CT2+

CT3 ‒

CT3+

ATS

CTs

Connecting CTs to the Inverter

1. See Figure 5-8. Connect CT leads to RJ-45 Break-

out Adapter’s (M) push terminals according to the label on the breakout adapter.

NOTE: Use yellow lead for CTx+ and use green lead for CTx-.

Figure 5-8. RJ-45 Breakout Adapter

NOTE: RJ-45 Breakout Adapter is included in the Generac PWRcell Kit.

NOTE: If the RJ-45 Breakout Adapter is not available, the CT leads can be wired to a Category 5 (Cat 5) cable. Use Table 5-8 to wire CTs directly to stripped Cat 5 wire.

Table 5-8. CT RJ-45 Pinout

1 White / Green White / Orange CT3+

2 Green Orange CT3-

3 White/Orange White / Green CT2+

4 Blue Blue CT1+

5 White / Blue White / Blue CT1-

6 Orange Green CT2-

7 White / Brown White / Brown Not Used

8 Brown Brown Not Used

Wire Color

(T-568A)

2. See Figure 5-9. Connect Cat 5 cable to CT input

jack (H).

NOTE: The connection between the RJ-45 breakout adapter and the inverter is made using a widely available installer supplied Cat 5 style cable.

Wire Color

(T-568B)

Value

010222

• CT input jack is a double-stacked RJ-45 jack.

• Either the top or bottom port may be used.

• Both jacks may be used when multiple sets of CTs are required.

010001

Figure 5-9. Accessory Ports

H Current Transformers (CTs) Accessory Port (RJ-45)

I Automatic Transfer Switches (ATS) Accessory Port

(RJ-45)

J REbus Beacon Port (USB-B)

K Authorized Generac Personnel Only

L STOP Terminals

NOTE: When setting an ESS Grid Usage Mode other

than the default unrestricted mode, attach the label packaged with the CTs to the inverter.

Connecting Multiple Sets of CTs

When installing CTs, local factors may require multiple sets of CTs to fully measure the utility power being sent to the building.

For 4-wire, 120 / 240 VAC, split-phase service:

• Use two pairs of CTs to measure the service. Use

each pair of CTs to measure a pair of service conductors / feeders within the main panel.

• Use both RJ-45 jacks with two Cat 5 cables.

• Connect CT1 from both cables to the same phase

and CT2 cable from both cables to the second phase.

• See Table 5-9: Multiple CT Connection. Connect

Cat 5 cables from the adapters into the two CT accessory ports at the inverter.

NOTE: Make sure to use the same pinout and connections.

Table 5-9. Multiple CT Connection

Service

1-1 L1-1 1 4 and 5 Front Port

1-2 L2-1 1 3 and 6 Front Port

2-1 L1-2 2 4 and 5 Back Port

2-2 L2-2 2 3 and 6 Back Port

Phase and

Wire Adapter

Adapter Adapter

Pins

CT Port

Row

Values

Installation Manual for Generac PWRCell Inverter 21

Page 26

Electrical Connections

Connecting CTs to Multiple PWRcell Systems/ Inverters

When an installation has multiple PWRcell inverter systems, either:

• Run a set of CTs for each inverter.

• Run a set of CTs to one inverter and then run a Cat

5 cable from the spare CT port within that inverter to any CT port within another inverter.

When running separate sets of CTs for each inverter, the load value displayed on each inverter screen will be the total load measured by the CTs.

When daisy-chaining multiple inverters, the total measured value is shared evenly across the inverters. In other words, the load value measured and acted upon by each inverter is inversely proportional to the number of inverters seeing the signal.

Example: The CT measured load displayed on three inverters which daisy chain the signal from the first inverter to the second inverter and the second to the third inverter, will be one-third of the total load seen.

NOTE: Daisy-chaining CTs across multiple inverters for distributed load-share is most applicable when each inverter has a battery attached. Otherwise, this configuration may not be necessary or desirable.

– CT3 must be connected to line 3 (for three phase

applications).

– All CTs must be orientated in the same relative

direction.

– In certain scenarios, additional setpoint modifi-

cations may need to be made. See Table 5-10:

CT Setpoints for more information.

To daisy-chain a CT signal:

1. Connect and calibrate a set of CTs to the first inverter. See CT Calibration for more information.

2. Run a new Cat 5 cable between the spare CT accessory port of the first inverter to either CT accessory port on the second inverter.

NOTE: Running a new Cat 5 cable between inverter CT ports prior to calibration in Step 1 may cause calibration issues.

CT Calibration

•

Install CTs before powering ON the inverter.

• The inverter automatically detects CTs when

turned ON.

• Once CTs are detected, a utility pole symbol will

appear on the lower right corner of the home screen power flow diagram. Verify operation by noting power flow.

– To calibrate CTs, navigate to the inverter device

page, access the sub-menu, and select the Calibrate CTs option. When the CT calibration process has been successfully completed, the inverter LCD screen will provide feedback showing ct cal success. Otherwise, the screen will show ct cal = X, where the value of X can be found in Table 5-11: Automatic Detection

Troubleshooting Table.

– CT2 must be connected to Line 2.

22 Installation Manual for Generac PWRCell Inverter

Page 27

Electrical Connections

Table 5-10. CT Setpoints

Setpoint Behavior Default Units

CalOverride

• Overrides CT calibration.

OFF N/A

• When set to OFF, the inverter detects the CTs number and direction of

CTs.

• A value of ON assumes a specific orientation and direction of CTs.

CTTurnsRatio

• Turns ratio of the CTs installed.

1,500 Turns

• Default turns ratio of 1,500 is compatible with included clamp type CTs

• If installation restriction requires larger accessory CTs, set point shall be

adjusted to 3,000. Verify turn ratio of CTs before modifying this setting.

Table 5-11. Automatic Detection Troubleshooting Table

Event Name Event Code Description Possible Solution

ct cal = 1 0x8061 Line 1 doesn’t have a valid CT calibration Check wiring and CT integrity

ct cal = 2 0x8062 Line 2 doesn’t have a valid CT calibration Check wiring and CT integrity

ct cal = 3 0x8063 Line 1 & 2 don’t have a valid CT calibration Check wiring and CT integrity

ct cal = 4 0x8064 Line 3 doesn’t have a valid CT calibration Check wiring and CT integrity

ct cal = 5 0x8065 Line 1 & 3 don’t have a valid CT calibration Check wiring and CT integrity

ct cal = 6 0x8066 Line 2 & 3 don’t have a valid CT calibration Check wiring and CT integrity

ct cal = 7 0x8067 Line 1 & 2 & 3 don’t have a valid CT calibration Check wiring and CT integrity

ct cal = 9 0x8069

ct cal = A 0x806A

ct cal = B 0x806B

Line 1 has multiple CTs on it (or a CT is on the neutral wire)

Line 2 has multiple CTs on it (or a CT is on the neutral wire)

Lines 1 and 2 have multiple or missing CTs on them (or a CT is on the neutral wire)

Check wiring and CT integrity

ct cal = C 0x806C

ct cal = D 0x806D

ct cal = E 0x806E

ct cal = F 0x806F

ct cal success 0x8070 Calibration was successful Check wiring and CT integrity

Line 3 has multiple CTs on it (or a CT is on the neutral wire)

Lines 1 & 3 have multiple or missing CTs on them (or a CT is on the neutral wire)

Lines 2 & 3 have multiple or missing CTs on them (or a CT is on the neutral wire)

Lines 1 & 2 & 3 have multiple or missing CTs on them (or a CT is on the neutral wire)

Check wiring and CT integrity

Installation Manual for Generac PWRCell Inverter 23

Page 28

Electrical Connections

Other Accessories

Revenue Grade Meter (RGM) Kit

A Generac PWRview Meter is an optional accessory for the PWRcell Inverter and may be factory or field installed. When installed at the bottom of the wiring cabinet, it also uses additional CTs that are provided. Complete installation instructions are included with the RGM kit. Order part number: PCRGM1.

PWRcell ATS

A Generac PWRcell ATS can be integrated into the PWRcell installation to facilitate alternate backup power configurations. Refer to the PWRcell ATS manual for additional information regarding configurations and installation instructions.

Figure 5-10. Accessory Ports

011236

LTE Modem

An LTE Wireless phone Modem is an optional accessory that can provide low bandwidth Internet connectivity if there is no hardwired Internet connected or if it is temporarily unavailable. The modem will be located in the upper left area in the inverter enclosure in proximity to the Rebus Beacon. The modem uses an antenna that gets mounted top left exterior of the enclosure through the 1/4 in trade knockout. The power cable is prewired in the inverter enclosure. When no LTE Modem is installed, the power cable will be left unconnected and safely secured. Complete installation instructions are included in the LTE Modem Kit. Order part number: PCLTE1.

Technical Service Connection

Service RJ-11 jack (C) is for use by authorized Generac personnel only. Never connect any device to this jack without direct instructions from Generac Technical Service.

A REbus Beacon USB-B Jack

B STOP Terminals

C Authorized Generac Personnel Only

D RGM PWR Gen Inhibit

E Automatic Transfer Switches (ATS) Accessory Port

F Current Transformers (CTs)

G LTE Modem Power Connector

Load Management Options

Load management systems are designed to work together to prevent the PWRcell system from being overloaded by large appliance loads. Load management options for PWRcell include the PWRcell ATS Controller and Smart Management Module (SMM).

When utilizing these load management solutions be sure to turn on the “EnaLoadShed” setpoint to on. This setpoint is accessible through the Mod. Settings menu via the inverter device page as shown in Figure 5-11.

011980

Figure 5-11. Mod Settings Menu

If this setpoint is not set to on, the devices will not operate correctly with the system. In addition, be sure to thoroughly read and understand each load management device manual before installation.

24 Installation Manual for Generac PWRCell Inverter

Page 29

Section 6: Commissioning and Setup

Go to

https://pwrfleet.generac.com/

to register

or scan the code above.

SERIAL NUMBER:

REGISTRATION CODE:

PEEL AWAY

XXXXX-XXXXX

RRRR-RRRR

Commissioning and Setup

System Configuration

The PWRcell system is a flexible, highly customizable system that can be configured in a number of ways to meet customer need. Correct system configuration requires selecting the right equipment and the correct system mode for the system. See the Generac PWRcell Inverter Owner’s Manual for information on system modes and other user-configurable settings.

General Information

All REbus devices are configured and controlled through the Generac PWRcell Inverter. Connected devices will appear on the LCD display.

NOTE: See Commissioning Multiple Inverter Sys-

tems for instructions on commissioning multiple inverter

systems.

Commissioning the System

NOTE: See the Generac PWRcell Commissioning Quick

Start Guide for more information.

Before powering up the system for the first time:

• Verify AC voltage is within the specified range for

system configuration.

– 240 V split-phase (108-130 VAC Line to Neutral)

– 208 V 3-phase (108-130 VAC Line to Neutral)

• Verify all wiring terminations are tight and secure.

• Verify DC wiring field terminations are secure and

polarity is correct.

• Verify DC disconnects for all connected devices

are turned ON.

Commissioning consists of seven steps:

1. Register system.

2. Energize the PWRcell inverter with AC power.

3. Select Inverter system mode.

4. Configure inverter settings.

5. Select inverter compliance setting (optional).

6. Select ESS Grid Usage Mode (optional).

7. Enable REbus devices.

8. Test islanding.

NOTE: Registering an inverter automatically registers all

REbus system components connected to that inverter.

Every REbus-enabled device can be monitored from the PWRfleet fleet management platform and the PWRview™ online monitoring system and mobile app.

To register a system for PWRview monitoring:

1. See Figure 6-1. Locate the serial number and reg-

istration code on the registration decal on the front of the inverter. This information will be required for registration.

2. Navigate to using a mobile device scan the registration label QR code.

3. Follow the on-screen prompts to complete the profile.

https://pwrfleet.generac.com or if

Registration

NOTE: If the system will not be connected to the Inter-

net, installer will not be able to take advantage of PWRfleet, the home owner will not have access to the PWRview app, and warranty will be limited to five years. Contact Generac at 1-888-ACTIVATE to complete the registration.

Installation Manual for Generac PWRCell Inverter 25

Figure 6-1. Registration Decal

009984

Page 30

Commissioning and Setup

Safety Shutdown

System Mode Menu

Self Supply Clean Backup

< EXIT SCROLL > NEXT • SELECT

Grid Tie *

Safety Shutdown

System Mode Menu

Clean Backup

< EXIT SCROLL > NEXT • SELECT

Grid Tie *

Self Supply

System Mode Menu

GRd. Settings SElibrate CTs CLEPn: 00010003XXXX

< EXIT SCROLL > NEXT • SELECT

Enable

Cancel Confirm

Connecting PWRcell Inverter to AC Power

Turn ON main AC backfeed to power-up the inverter.

See Figure 6-2. On power-up, the home screen will appear on the control panel LCD with the operational mode listed at the top of the home screen.

010006

Figure 6-2. Inverter Power-Up

NOTE: If there is no grid power at the site and the system includes a PWRcell battery, blackstart can be used to start the system from the battery. See the Generac PWRcell Battery Owner’s manual for information on blackstarting a system.

3. See Figure 6-4. Use the up and down arrows to highlight the desired mode and press the center button to select.

009967

Figure 6-4. Selecting System Modes (2 of 4)

4. Arrow right and press the center button to select Confirm.

5. See Figure 6-5. Arrow right and press the center button to select Confirm.

Selecting Inverter System Mode

NOTE: See the Generac PWRcell Inverter Owner’s

Manual for more information on system mode options.

To select a system mode:

1. See Figure 6-2. While viewing the home screen press the center button.

2. See Figure 6-3. A list of system modes will be displayed with the current mode marked with an asterisk.

NOTE: The list of modes may not include all those shown in Figure 6-3.

Figure 6-3. Selecting System Modes (1 of 4)

011139

Figure 6-5. Selecting System Modes (3 of 4)

6. See Figure 6-6. Verify the mode listed at the top of the home screen is the desired mode.

009968

Figure 6-6. Selecting System Modes (4 of 4)

009966

26 Installation Manual for Generac PWRCell Inverter

Page 31

Commissioning and Setup

Configuring Inverter Settings

Configuring Systems with PWRcell Batteries

Systems with a PWRcell battery must have the EnaIslanding setpoint set to ON in order to provide backup power during a grid outage. This setpoint is accessible through the Mod. Settings menu via the inverter device page. The default value for this setting from the factory is ON.

Verify the PWRcell inverter protected loads disconnect is in the ON position.

Verify the Battery Disconnect on the PWRcell battery is ON.

NOTE: Reference the PWRcell Battery Owner's Manual for advanced battery settings.

Adjusting Inverter Settings

1. See Table 1. Navigate to the inverter device page

using the right arrow key (next page right of the home screen).

2. Push the center button.

3. Select Mod. Settings using the down arrow to scroll

and the center button to select.

4. Scroll through the settings using the up/down arrow keys.

5. Use the center button to select a setting.

6. Use the up/down arrow keys to change the value of

a setting.

7. Use the center button to deselect a setting.

8. Scroll down and save all changes before exiting

the Mod. Settings menu.

9. Select Mod. Settings again to verify changes were saved.

Table 1 - Adjusting Inverter Settings

Setpoint Range Default Description

Channel for REbus communications. All devices in a system must use

PLM_Channel 0 – 12 1

the same channel (except REbus Beacon). Do not set equipment to

channel 0 unless performing

Multiple Inverter System Commis-

sioning Procedure

TargMaxImprtP -30,000 to +30,000 Watts 0

TargMinImprtP -30,000 to +30,000 Watts 0

EnaIslanding on / off on Allows system to island, providing backup power during a grid outage.

EnaExtTransfer on / off off

ExtTransVolt 50 – 200 Volts 95

ExtTransTime 1 – 360 Seconds 15

Export Override on / off off

PLM_Disable on / off off

CalOverride on / off off

CTTurnsRatio 1,500 – 3,000 Turns 1,500 Allows a different turns ratio to be set for specific CTs.

Maximum Threshold for importing power before the battery will dis-

charge in Self-Supply Mode to offset.

Minimum power import maintained by charging the battery from the grid

in Supply Mode.

Turn on if an external automatic transfer switch (ATS) has been installed

to operate with the Inverter.

Minimum voltage from the utility that must be present for the inverter to

reconnect an ATS back to the grid.

Length of time the inverter will wait to trigger an ATS to reconnect to the

utility upon sensing grid voltage return.

Formerly called Zero Export, this setting will inhibit the PWRcell system

from exporting power to the grid.

This setting will disable the power line communications coming from the

inverter.

Overrides inverter logic for automatic detection of included Generac cur-

rent transformers (CTs).

EnaLoadShed on / off off Turn on if PWRcell ATS Controller or SMM devices have been installed.

Installation Manual for Generac PWRCell Inverter 27

Page 32

Commissioning and Setup

(000627a)

DANGER

Electrocution. Never enable any device during an installation or while wires are exposed. Doing so will result in death, serious injury, or equipment or property damage.

Inverter

PWRcell 2P Inv.

2.4Wh

248V

-02

Disabled AC Power: AC Voltage: E-total:

Enable

PWRcell 2P Inv. Menu

Mod. Settings Calibrate CTs RCPn: 000100073212

< EXIT SCROLL > NEXT • SELECT

Selecting Inverter Compliance Setting (optional)

By default, all Generac PWRcell Inverters ship in compliance with UL 1741, including IEEE 1547. If the system needs to be configured to comply with a different grid interconnection standard, activate the new configuration before proceeding via the Installer Configuration Tool. See Installer Configuration Tool for more information.

Selecting ESS Grid Usage Mode (Optional)

By default, all Generac PWRcell Inverters ship without restrictions on how the PWRcell battery (ESS) may be charged from, or supply power to, an interconnected utility grid. If the system needs to be configured to comply with specific utility interconnection requirements, a different ESS Grid Usage Mode may be selected.

An ESS Grid Usage Mode is set through the Installer Configuration Tool.

NOTE: The ESS Grid Usage Mode is one-time settable and, therefore, once set cannot be changed by an installer without support from Generac Power Systems.

Enabling REbus Devices

NOTE: All PWRcell devices are enabled and configured

individually through the PWRcell inverter control panel.

Following installation, the inverter must be enabled before all other REbus devices.

To enable the inverter:

1. See Figure 6-7. Use the right arrow key to scroll the inverter device page.

2. Verify inverter status reads disabled.

NOTE: There is no time allowance provided to further

change this mode after it is set.

There are two ESS Grid Usage Modes for PWRcell equipment: Zero Import and Export Limiting.

Zero Import mode (CRD200 Export Only compliance) allows the battery to export power to a connected utility grid but will not allow the battery to be charged from the utility grid. In this mode, the battery will only be charged by a connected REbus source such as a PV Link. Power from the battery can supply all local loads as well as supplying power to a utility (when connected). See Setting

for Import/Export Compliance for more information.

Export Limiting mode allows the user to restrict the export to a connected utility grid to a Export Limit value set by the installer. When the Export Limit value is set to 0, this mode functions as like a “Zero Export” mode (CRD200 Import Only compliance) allowing the battery to be charged from a connected utility grid but will not allow any REbus-connected source (either from the battery or PV) to export power to the utility grid. Configured this way, the battery can be charged by a connected REbus source and / or a utility grid source but no power will be exported to the utility.

See Setting for Import/Export Compliance for more information.

010010

Figure 6-7. Enabling Inverter (1 of 4)

3. Press the center button.

4. See Figure 6-8. Highlight Enable and press the

center button.

009656

010011

Figure 6-8. Enabling Inverter (2 of 4)

5. See Figure 6-9. Arrow right and press center button to Confirm.

28 Installation Manual for Generac PWRCell Inverter

Page 33

Commissioning and Setup

Enable

PWRcell 2P Inv Menu

Mod. Settings Calibrate CTs RCPn: 00010003XXXX

< EXIT SCROLL > NEXT • SELECT

Enable

Cancel Confirm

Inverter

PWRcell 2P Inv.

2.4Wh

248V

-36W

-02

grid connected AC Power: AC Voltage: E-total:

TOU Scheduler

REbus Beacon

disabled To enable scheduler, press center button and select “Enable”.

REbus Beacon Menu

Mod. Settings

Remove Device RCPn: 00010003XXXX

< EXIT SCROLL > NEXT • SELECT

Enable

TOU Schedule: Time Zone:

Cancel Save

1 4

Access Code: 57

010012

Figure 6-9. Enabling Inverter (3 of 4)

6. See Figure 6-10. The inverter is enabled. It will

create voltage at the DC terminals and begin communicating with connected REbus devices.

NOTE: Per UL1741, the PWRcell inverter may require five minutes upon recovery from a grid outage or islanding event before exporting power.

010013

Figure 6-10. Inverter Enabled (4 of 4)

7. Enable all other REbus devices connected to the system by repeating steps 1-5 for each device. For further commissioning instruction for REbus devices, see their respective installation manuals.

010109

Figure 6-11. Configuring TOU Schedule (1 of 4)

2. See Figure 6-12. Use the up and down arrows to highlight Mod. Settings and press the center button to enter the settings menu.

010110

Figure 6-12. Configuring TOU Schedule (2 of 4)

3. See Figure 6-13. Use the up and down arrows to highlight Access Code and press the center button to select.

4. Use the up and down arrows to set the Access Code to 57, and press the center button.

NOTE: The access code is valid for five minutes. After five minutes, the access code must be entered again to enable changes.

REbus Beacon Setup

REbus Beacon allows the PWRcell system to manage energy production and storage over the course of the day. This is called Time of Use (TOU) energy management. To take advantage of this functionality, the PWRcell system must include a PWRcell battery and a reliable connection to the Internet via an Ethernet connection to a router.

NOTE: Enabling and setup of the REbus Beacon is only required when utilized for TOU scheduling. Otherwise, do not enable the REbus Beacon.

Configuring and Running a TOU Schedule

1. See Figure 6-11. Navigate to the Beacon device

page and press the center button to enter the device menu.

Installation Manual for Generac PWRCell Inverter 29

010111

Figure 6-13. Configuring TOU Schedule (3 of 4)

5. Use the up and down arrows to highlight TOU Schedule and press the center button to select.

Page 34

Commissioning and Setup

TOU Schedule: Time Zone:

Cancel

1 4

Access Code: 57

Save

TOU Scheduler

REbus Beacon

SDGE

Self Supply

1h:37m

running Next Change: To: Schedule:

TOU Scheduler

REbus Beacon

SDGE

Self Supply

1h:37m

Priority Backup Next Change: To: Schedule:

6. Use the up and down arrows to adjust the TOU Schedule. Once the desired value is set, press the center button to exit edit mode.

NOTE: See the latest Time of Use Program Guide for current TOU schedule values. The program guide is available at https://www.generac.com/resources-and-

tools/ce-installer-resources/clean-energy-designsupport.

7. Set the Time Zone to the desired location based on

Table 2: Time Zone Codes. Once the desired

value is set, press the center button to exit edit mode.

Table 2 - Time Zone Codes

Time Zone Units

UTC 0

US / Eastern 1

US / Central 2

US / Mountain 3

US / Pacific 4

US / Alaska 5

US / Hawaii 6

US / Arizona 7

US / Puerto Rico 8

8. See Figure 6-14. To commit changes to all entries, highlight Commit. Press the center button, then use the arrows and center button to confirm the choice.

010113

Figure 6-15. Running.

010114

Figure 6-16. Current System Mode.

See Figure 6-17 and Figure 6-18. On the home page, the text above the power flow diagram will alternate between Scheduler Active and the current system mode.

010112

Figure 6-14. Configuring TOU Schedule (4 of 4)

See Figure 6-15 and Figure 6-16. When enabled, the LCD will alternate between a TOU Scheduler Running Screen and a Current System Mode screen. Both screens will display the time until the next system change and the mode the system will change to. The TOU Schedule name will be listed at the bottom of the device page.

30 Installation Manual for Generac PWRCell Inverter

Figure 6-17. Scheduler Active

Figure 6-18. Current Mode

010115

010116

Page 35

Commissioning and Setup

TOU Scheduler

REbus Beacon

disabled To enable scheduler, press center button and select “Enable”.

Enable

Rebus Beacon Menu

Mod. Settings Calibrate CTs RCPn: 00010003XXXX

< EXIT SCROLL > NEXT • SELECT

Enable

Cancel Confirm

TOU Scheduler

REbus Beacon

SDGE

Self Supply

1h:37m

running Next Change: To: Schedule:

Enable

Rebus Beacon Menu

Mod. Settings Calibrate CTs RCPn: 00010003XXXX

< EXIT SCROLL > NEXT • SELECT

Disable

Cancel Confirm

TOU Scheduler

REbus Beacon

disabled To enable scheduler, press center button and select “Enable”.

Enabling Beacon TOU

Once the TOU Schedule is set, the scheduler will automatically enable itself and begin running. However, if the scheduler becomes disabled for any reason, follow the instructions below to re-enable the scheduler:

1. See Figure 6-19. Navigate to the Beacon device

page and press the center button to enter the device menu.

010118

Figure 6-19. Enabling Beacon (1 of 2)

2. Highlight Enable and press the center button.

3. See Figure 6-20. Arrow sideways to Confirm and

press the center button.

Disabling Beacon TOU

The scheduler can be disabled at any time. To disable the scheduler:

1. See Figure 6-21. Navigate to the Beacon device page and press the center button to enter the device menu.

010113

Figure 6-21. Disabling Beacon (1 of 3)

2. Highlight Disable and press the center button.

3. See Figure 6-22. Arrow sideways to Confirm and

press the center button.

Figure 6-20. Enabling Beacon (2 of 2)

Installation Manual for Generac PWRCell Inverter 31

011140

010117

Figure 6-22. Disabling Beacon (2 of 3)

4. See Figure 6-23. The status line on the Beacon device page will read Disabled.

NOTE: The system will remain in the current system mode until the mode is changed manually or the scheduler is re-enabled.

010118

Figure 6-23. Disabling Beacon (3 of 3)

Page 36

Commissioning and Setup

TOU Scheduler

REbus Beacon

SDGE

Self Supply

1h:37m

running, overridden Next Change: To: Schedule:

IP: 192.168.158.37

MAC:00:04:a3:0b:77:fc

DHCP: bound, 83285s ARP: idle DNS: done

ctr btn: net settings

IP Settings

Network Settings Menu

< EXIT SCROLL > NEXT • SELECT

Disable Ethernet

Temporarily Overriding the TOU Scheduler

The scheduler can be temporarily overridden at any time without disabling it. A manual override will apply until the next regularly scheduled system mode change.

To temporarily override the scheduler:

1. Navigate to the system home page.

2. Press the center button.

3. Select the desired temporary system mode.

NOTE: See the Generac PWRcell Inverter Owner’s

Manual for more information on system modes.

When the scheduler has been overridden:

• Temporary Override will display on the home page,

alternating with the words Scheduler Active and the name of the current system mode.

• See Figure 6-24. Running, Overridden will display

on the Beacon device page.

NOTE: If Priority Backup mode is not listed with the other system modes, the system installer may have removed the mode to comply with utility rules. Some utilities do not permit a battery to charge from the grid..

Manually Configuring IP Settings

NOTE: On networks not configured for DHCP, use the

MAC address to locate the device on the network.

To manually configure settings:

1. Disconnect and move the blue Cat 5 connector connected to the topside of the Beacon to the RJ45 Ethernet port on the backside of the inverter Control Panel.

2. See Figure 6-25. When step 1 is conducted properly and the inverter is receiving Internet, the inverter control panel will have an additional device page to configure Ethernet Settings. From the home screen, press the left arrow key.

010119

Figure 6-24. Overriding Scheduler

• The countdown timer on the Beacon device page

will indicate the remaining time until the next mode change.

After the next scheduled mode change, the scheduler will resume normal operation.

Disabling the TOU Scheduler in Anticipation of a Grid Outage

In the event of an impending storm and potential outage, top off the battery by disabling the scheduler and switching the system mode to priority backup or clean backup mode.

To disable the TOU Scheduler:

1. Navigate to the Beacon device page and disable the scheduler. See Enabling Beacon TOU for more information.

2. Navigate to the system home page and change the system mode to a backup-only mode, such as Priority Backup or Clean Backup. See the Generac PWRcell Inverter Owner’s Manual for more information on system modes.

3. Once the emergency has passed, re-enable the scheduler. See Enabling Beacon TOU for more information.

32 Installation Manual for Generac PWRCell Inverter

Figure 6-25. Ethernet Configuration (4 of 4)

3. See Figure 6-26. Press the center button from the Ethernet settings screen and select IP Settings.

Figure 6-26. Ethernet Configuration (1 of 2)

009981

010048

Page 37

4. See Figure 6-27. From the IP Settings menu select

IP: 192.168.158.37

MAC:00:04:a3:0b:77:fc

DHCP: bound, 83285s ARP: idle DNS: done

ctr btn: net settings

Manual.

Figure 6-27. Ethernet Configuration (2 of 2)

5. Adjust any of the following:

• IP

• Subnet Mask

• DNS

• Gateway

NOTE: Contact your network system administrator to

connect the PWRcell inverter to a restricted network.

6. Disconnect and move blue Cat 5 connector back to its original RJ-45 connection port on the topside of the Beacon.

NOTE: Beacon must retain an Internet connection in order to use the PWRview mobile app.

Ethernet Troubleshooting

NOTE: Use a laptop or other device to verify the Internet

connection is working properly before troubleshooting.

For a successful connection the following must be valid:

• The Internet LED on the control panel must be lit.

NOTE: A lit Internet LED is a necessary, but not suffi-

cient indication of a successful connection to the PWRview server. The blue LED may be lit even if the inverter is not connected to the server.

• A valid IP address must be displayed on the Ether-

net settings page.

To validate the connection to the server, the Ethernet settings page must be accessed. To access the Ethernet settings page:

1. Relocate the blue Cat 5 cable connector inserted into the RJ-45 port on the top of the Beacon to the RJ-45 port on the backside of the inverter control Panel.

2. Navigate the inverter control panel to access a screen similar to Figure 6-28. When properly installed, the inverter control panel will have an additional device page for Ethernet Settings.

010049

Commissioning and Setup

009981

Figure 6-28. Ethernet Troubleshooting

NOTE: Ensure blue Cat 5 cable is reconnected to the Beacon after troubleshooting is complete.

On the Ethernet settings page, the PWRview State should read “Listen”, then a successful connection has not been made to the PWRview server.

If the inverter does not automatically connect to the network and begin communicating with the PWRview server, perform the following steps:

1. Verify an Ethernet connection has been enabled by pressing the center button on the Ethernet page and selecting Enable Ethernet.

2. Verify the network is configured for DHCP and that DHCP is enabled.

3. If the network is not configured for DHCP, obtain the MAC address and contact the system administrator for IP address assignment.

4. Input IP address under Manual settings. See

Registration.

5. Restart router and modem.

6. Contact system administrator for further

troubleshooting steps.

NOTE: It is the installer’s responsibility to make sure the Internet connection is reliable and secure. Generac recommends always using a hardwired connection. Generac does not recommend or support using any wireless or power line carrier network devices. Use these devices at your own discretion.

Commissioning Multiple Inverter Systems

PLM Crosstalk

NOTE: Do not energize two or more inverters before

commissioning. Energizing two or more inverters prior to commissioning will result in crosstalk.

PWRcell inverters are manufactured with some common default parameters. One of these default parameters is the default Power Line Modem (PLM) channel. PWRcell inverters use the PLM channel to communicate with and

Installation Manual for Generac PWRCell Inverter 33

Page 38

Commissioning and Setup

send commands to REbus-powered devices. In this way, a PWRcell inverter behaves like a master device. If two or more master devices are communicating on the same PLM channel, REbus devices become unable to respond properly to the intended master device and the master devices will attempt to provide control for the other, often leading to communication and reporting issues. This is referred to as cross-talk.

How to identify PLM Crosstalk

Cross-talk can be easily identified by navigating to the device pages on an inverter control panel. If two inverter device pages exist, crosstalk has occurred. Similarly, if any REbus devices from one inverter show up on another, crosstalk has occurred.

NOTE: To differentiate one inverter device page from another, confirm the RCP numbers via the device page sub-menu.

NOTE: It is recommended to keep a list of which REbus devices are connected to specific inverters at multi-system sites.

Multiple Inverter System Pre-Commissioning Checklist

Before commissioning multiple inverter systems, confirm the following:

• Inverter systems (including PV Links and PWRcell

batteries) have been installed per manufacturer instructions and to local and state code requirements.

• PWRcell batteries have their Battery Disconnect

switches in the OFF position.

• PWRcell inverters are de-energized with no volt-

age present at their AC Grid input terminals. Use an appropriately rated multi-meter/voltmeter to verify if AC voltage is present at the AC Grid terminals.

NOTE: To determine if the inverter is de-energized, check the inverter control panel and the system backfeed breaker. If de-energized, the inverter control panel will be powered off and the inverter backfeed breaker will be OPEN.

Multiple Inverter System Commissioning Procedure

NOTE: Throughout this process, it is important that only

one inverter is energized at any time. If two or more inverters are energized at any point during this process, the inverters will cross-talk. To resolve crosstalk, see

PLM Crosstalk Recovery Procedure. After resolving

crosstalk, the commissioning process will need to be restarted for the cross-talked inverters.

1. Close the AC backfeed breaker to supply AC

power to one PWRcell Inverter AC Grid Input/Out-

put Terminals. This will allow the inverter to energize and illuminate the Inverter control panel.

2. Perform Commissioning the System steps 1-7.

3. Modify the PWRcell inverter PLM Channel to 0.

NOTE: PLM Channel 0 is a catchall channel. Only use

for inverters during programming. Do not set REbus devices to channel 0. Do not leave inverter on channel 0.

4. Choose a channel from 2 – 12 to use as the only number for addressing all devices on the system. The goal is to address the system to its own unique channel across all devices.

NOTE: Do not leave any device, including the inverter, on channel 0 or channel 1 by the end of the process.

5. Use arrow keys to navigate to all REbus devices (expect REbus Beacon) to change the PLM channel.

6. Access Mod. Settings for each device and change the PLM channel to the chosen channel (step 4) for that system. See device installation manual for specific instructions.

7. Modify the PLM channel setpoint for the PWRcell inverter to match the PLM channel its REbus devices were set to in the previous step.

NOTE: Be sure to click Save at the bottom of the menu after modifying the channel on each device.

8. De-energize inverter. Once the inverter is de-energized, repeat steps 1 – 7.

NOTE: It may take a few seconds for the inverter screen to power off due to capacitance in the power core. Wait until the screen goes blank before energizing the next inverter.

9. After programming each system separately, reenergize all PWRcell inverters by closing their AC Grid backfeed breakers, enable the inverters, and all REbus devices.

PLM Crosstalk Recovery Procedure

For each PWRcell Inverter that has crosstalked, perform the following procedure to clear the foreign devices from the display after the multi-inverter system has been properly commissioned:

1. De-energize all but one inverter.

2. Access the Installer Configuration Tool using the

instructions below.

3. Navigate to the Inverter using the Installer Tool and select PWRcell Configuration.

4. Select Clear Display to wipe the screen of that inverter of unwanted devices from other systems on site.

5. Follow steps 1 – 8 for Multiple Inverter System Commissioning. See Multiple Inverter System

Commissioning Procedure for more information.

34 Installation Manual for Generac PWRCell Inverter

Page 39

Commissioning and Setup

6. Proceed to next crosstalked inverter and repeat the procedure.

Installer Configuration Tool

The Installer Configuration Tool allows configuration and provisioning of Generac PWRcell systems from a smartphone or laptop. The interface allows installers to configure basic settings, set inverter compliance, generate a compliance report, and understand system performance. The interface is only available on Generac PWRcell systems with a REbus Beacon installed. Close proximity to the Beacon is required for use. It is not possible to access this tool remotely. 45 minutes after being activated, the Beacon’s WIFI signal will time out and may need to be reactivated. For Beacon installation instructions, see REbus Beacon Setup.

NOTE: All PWRcell inverters come with a REbus Beacon pre-installed.

Accessing the Installer Configuration Tool

1. Navigate to the Beacon device page on the PWR-

cell inverter control screen and press the center button.

2. Select Installer Tool from the menu and click Confirm. This will activate the Beacon’s Wi-Fi network.

3. Use a smartphone or laptop to connect to the Wi-Fi network SSID titled: REbus_Beacon_xxxx where xxxx is the last 4 digits of the Beacon’s RCP number.

NOTE: The Beacon’s RCP number can be found on the front of the Beacon located inside the inverter, as well as on the Beacon device page through the inverter’s screen. To find this number through the inverter’s screen press the center button on the Beacon device page. The RCP number will be displayed at the bottom of the menu screen.

browser URL. The installer tool will appear in the browser.

010981

Figure 6-29. Installer Configuration Tool

Configuring Basic PWRcell Settings

NOTE: To customize basic settings, the inverter must be

disabled. Before disabling the inverter, ensure all REbus devices have first been disabled. Settings changes will not be applied if the inverter is enabled.

1. Select Inverter from the Beacon menu.

NOTE: If using a smartphone, open the menu by click-

ing the hamburger icon in the upper-right corner of the screen. Laptop users will see the menu displayed on the left side of the screen.

2. Select PWRcell Configuration.

4. Type in the password (labeled “CODE”) for the

REbus Beacon's Wi-Fi network.

NOTE: The code for the REbus Beacon’s Wi-Fi network is located on the back of the Beacon inside of the inverter. The Beacon is mounted on the upper left-hand sidewall of the inverter housing. Unstick the Beacon to view the code labeled on the back.

NOTE: Where utility requirements contain provisions for security against adjusting compliance settings, consider removing code label for the Beacon after successful commissioning.

5. See Figure 6-29. Open a web browser on a smartphone or laptop and enter 10.10.10.10 for the

Installation Manual for Generac PWRCell Inverter 35

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Commissioning and Setup

3. See Figure 6-30. To adjust a setting, click on it, select the desired change, and click Submit. Any changes selected to be made, will not be implemented unless Submit is selected at the end.

011978

Figure 6-30. PWRcell Configuration

All settings can be adjusted through the inverter’s screen with the exception of the following two settings, which can only be adjusted though the Installer Configuration Tool:

• Enabled SysModes. Allows installers the option to

disable system modes, such that they cannot be enabled through the inverter control screen. To disable a system mode, tap the checkbox to uncheck the box for that mode. Click Submit to save.

• Clear Display. Allows installers to wipe the screen

of any unwanted devices being retained by the memory card in the screen module. Select Clear and click Submit. The screen will go blank and test its LEDs. Allow time for the screen to reload before accessing.

Verifying Inverter Software Version

Some features, such as those found in Setting for

Import/Export Compliance, require inverter software

that may not come default to the unit installed. The software version of an inverter can be verified using the Beacon Installer Tool. To verify the inverter software version in the Beacon Installer Tool, select the 'Common' submenu option under the “Inverter” object as shown in Fig-

ure 6-31.

011979

Figure 6-31. Verifying Inverter Software

The information populated upon selecting the 'Common' sub-menu option lists the manufacturer, model, version, and serial number for the inverter. The value displayed for 'Version' contains the hardware version and software version of the inverter displayed as the sequence of numbers separated by an underscore. Where a “H” represents the hardware version and a “S” represents the software version, the value shown for 'Version' would be “HHH_SSSSS”.

Setting for Import/Export Compliance

NOTE: The PWRcell Inverter must be disabled prior to

making changes to import or export settings. Utility interconnection requirements may require the abil-

ity to restrict or limit system import or export power from/ to the Utility grid. To setup a PWRcell system to comply with these requirements, access the PWRcell Configurations page following the instructions in Configuring Basic PWRcell Settings through the Inverter sub-menu. Once the configuration page loads, you may adjust import and export settings.

Once all settings adjustments have been made, click the “Submit Query” button at the bottom of the configuration page. Import and Export settings are explained in detail below.

NOTE: These settings are included in the Compliance PDF. See Proof of Compliance section for more information.

36 Installation Manual for Generac PWRCell Inverter

Page 41

Export Limiting: This option is one-time settable. To unset Export Limiting, please contact Generac PWRcell Technical Support. Please be aware that once set, certain Utilities may require the request to unset this setting come from the Utility. Changing this setting from “DISABLED” to “ENABLED” via the dropdown list will limit the inverter power export to the utility grid to the value specified for Export Limit.

Export Limit: Once set from its default value, this feature’s value can only be decreased from its current value. Please be aware that once set, certain Utilities may require the request to unset this setting come from the Utility. To reset the value of this feature, please contact Generac PWRcelll Technical Support. The units for this feature are Watts. The value of this setting is the limit to what the inverter can export to the grid once the Export Limiting is enabled. To set the inverter so that it does not export any excess power to the grid, set this value to 0. This will enforce CRD200 Import Only Mode.

NOTE: This feature is only available for inverter firmware version 13310 or greater. See Verifying Inverter

Software Version for more details. To request a firm-

ware update for an inverter, please contact Generac PWRcell Technical Support.

Zero Import: This option enforces CRD200 Export Only mode and is one-time settable. Please be aware that once set, certain Utilities may require the request to unset this setting come from the Utility. To unset Zero Import, please contact Generac PWRcell Technical Support. Changing the value from “DISABLED” to “ENABLED” via the dropdown list will prevent the PWRcell batteries from importing power from the utility grid.

Commissioning and Setup

010983

Figure 6-32. Utility Compliance Configuration

NOTE: Verify the Compliance Selection field shows the desired compliance rule after clicking Submit.

NOTE: For multi-system sites, compliance must be set on each inverter separately through each respective Beacon.

NOTE: This feature is only available for inverter firmware version 13310 or greater. See Verifying Inverter Soft-

ware Version for more details. To request a firmware

update for an inverter, please contact Generac PWRcell Technical Support.

Setting Inverter Grid Compliance

NOTE: The inverter must be disabled before changing

utility compliance settings. Before disabling inverter, ensure that all REbus devices have first been disabled. Compliance settings changes will not be applied if inverter is enabled.

1. To set an inverter to comply with a utility’s require-

ments, navigate to the drop-down menu in the upper right-hand corner of the Installer Configuration Tool home page and select Inverter from the drop-down menu.

2. See Figure 6-32 Click on Utility Compliance Con-

figuration and select the appropriate utility compliance standard from the menu at the bottom of the page. Click Submit to apply the compliance standard. The settings entered will not take effect until the Submit button has been clicked.

Installation Manual for Generac PWRCell Inverter 37

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Commissioning and Setup

Proof of Compliance

The Compliance PDF validates whether the system has been set up to conform to a utility compliance ruleset. Please double check the system is configured properly by observing the ‘In compliance with’ line in the PDF. If your utility requires proof of correct configuration, save this PDF and send it to your utility. It is recommend you keep a copy on file as well.

1. To generate a proof of compliance PDF, click on the Compliance PDF tab in the navigation menu.

2. Click on Download Report.

3. A new window will open in the browser with the

report. Verify information is correct and save the document or send via email.

Figure 6-33. Proof of Compliance

010984

38 Installation Manual for Generac PWRCell Inverter

Page 43

Section 7: Maintenance

(000642)

DANGER

(000600)

DANGER

Equipment damage. Never replace a fuse with a different size or style. Doing so will void the inverter warranty and could result in equipment or property damage.

(000653a)

CAUTION

(000652a)

CAUTION

Equipment damage. Never remove DC fuses under load. Removing DC fuses under load could result in equipment or property damage.

Service

Maintenance

For any servicing needs, contact the nearest Independent Authorized Service Dealer (IASD), contact Generac PWRcell Technical Support at 1-855-635-5186, or call Generac Customer Service at 1-888-436-3722 (1-888GENERAC), or visit www.generac.com.

Accessing Wiring Compartment

To access the wiring compartment:

1. Initiate an inverter shutdown.

2. Allow DC voltage to drop to below 10VDC.

See

Figure 7-1. Open all PWRcell DC Disconnects

(A). Verify DC voltage reported on LCD screen has dropped to below 10VDC.

4. Disconnect AC Grid source from inverter. Wait for

Inverter LCD screen to turn off.

Open inverter front cover by lifting the bottom to horizontal (B) and pushing inward (C).

6. Locate wiring compartment cover (D).

7. Remove five M4X10 screws (E) and wiring

compartment cover.

8. Verify all PWRcell DC and AC terminals are below

10V

010238

Figure 7-1. Wiring Compartment

Replacing Fuses

Two main fuses are installed between the power core and the PWRcell DC disconnects. See PWRcell Inverter

Wiring Compartment for location.

If a main fuse has blown, determine the root cause of the issue before replacing it. For assistance, contact the nearest Independent Authorized Service Dealer (IASD), contact Generac PWRcell Technical Support at 1-855635-5186, or call or Generac Customer Service at 1-888436-3722 (1-888-GENERAC), or visit

www.generac.com.

Owner’s Manual for Generac PWRcell Inverter 39

Page 44

Maintenance

To replace a fuse:

1. Initiate an inverter shutdown. See Shutdown

Mode for more information.

See

Figure 7-1. Open all PWRcell DC Disconnects

(A). Verify DC voltage reported on LCD screen has dropped to below 10VDC.

3. Disconnect all sources of AC and DC Power.

4. Remove wiring compartment cover. See Access-

ing Wiring Compartment.

5. See Figure 7-2. Locate DC fuse holders (B).

6. Using a multi-meter, verify all PWRcell DC and AC

terminals are below 10V.

7. Press fuse holder up and turn counterclockwise to release.

8. Remove fuse from fuse holder and check for continuity using a multi-meter.

9. Insert replacement fuse into fuse holder.

10. Reinstall fuse holder. Turn clockwise until tight.

Recovery From an Error State

Error events will force the PWRcell inverter into an error state where no DC power is exported, though voltage may still be present on REbus from connected devices.

To recover a device from an error state, use the front control panel to disable and then enable to device.

If the system is unable to be accessed, but is connected to the Internet, contact Generac Technical support for assistance in resetting an error state.

010018

Figure 7-2. Removing Wiring Compartment Cover

40 Installation Manual for Generac PWRcell Inverter

Page 45

Troubleshooting

Section 8: Troubleshooting

General Troubleshooting

Some of the more common problems are listed in the table below. This information is intended to be a check or verification that simple causes can be located and fixed. It does not cover all types of problems. Procedures that require in-depth knowledge or skills should be referred to an Independent Authorized Service Dealer.

Table 8-1. General Troubleshooting Guide

Problem Possible Cause Solution

System will not exit Shutdown

CTs will not calibrate

No REbus Beacon device page

Inverter isn’t connected to server

External shutdown button depressed

No jumper between STOP terminals

Loose connection Check CT wiring.

Beacon USB cable not connected

Beacon wrap-around cable not connected

Inverter not connected to the Internet

Release external shutdown button.

Verify jumper is in place between STOP terminals.

Trigger manual CT calibration from the inverter device menu.

Verify the USB cable is correctly connected to the Beacon and also to the Beacon accessory port in the inverter wiring compartment. Inspect exposed sections of cable for damage.

Verify the short wrap-around cable is plugged into Beacon, from one port to the other.

Verify the inverter is connected to the Internet via a router.

If problems persist, contact the nearest Independent Authorized Service Dealer (IASD), contact Generac PWRcell Technical Support at 1-855-635-5186, or call Generac Customer Service at 1-888-436-3722 (1-888-GENERAC).

Installation Manual for Generac PWRCell Inverter 41

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Troubleshooting

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Page 48

Part No. DMAN00040 Rev. B 12/3/2020

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