Generac Power Systems PWRcell X11400 Series, Installation Manual

Electrical Connections

Installation Manual for Generac PWRCell Inverter

19

Connecting CTs to the Inverter

•

See 

Figure 5-8

. Connect CTs to the inverter using 

a RJ-45 connector and Category 5 (Cat 5) Ethernet 
cable. 

•

CT input jack (H) is a double-stacked RJ-45 jack. 
Either the top or bottom jack may be used.

NOTE: 

Connect CTs to the CT input jack in the middle of 

the wiring compartment. Do not connect CTs to the 
Ethernet jack. Do not connect the Internet to the CT input 
jack. See

 Generac PWRcell Inverter Wiring 

Compartment

 for jack locations. 

:

010001

H

I

J

K

L

Figure 5-8. Accessory Ports

H

CTs RJ-45 jack

I

ATS (Automatic Transfer Switch) RJ-45 jack

J

REbus Beacon USB-B

K

Authorized Generac personnel only

L

External safety shutdown switch terminals

•

See 

Figure 5-9

. Connect CT leads to RJ-45 

Breakout Adapter (M), using the wire coding shown 
in 

Table

5-8: CT Pinout

. 

010002

M

Figure 5-9. 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 Cat 5 cable.

Table 5-8. CT Pinout

Pin

Wire Color 

(T-568A)

Wire Color

(T-568B)

Value

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

CT Calibration

•

Install CTs before powering ON the inverter.

•

The inverter automatically detects and calibrates 
CTs when turned ON. 

•

Once CTs are detected and calibrated, a utility pole 
symbol will appear on the lower right corner of the 
home screen power flow diagram.

•

If manual CT calibration is required, set 
CalOverride to 1. The CalOverride setpoint is 
accessible through the Mod. Settings menu via the 
inverter device page. See 

Table

5-9

 for more 

information.
– CT1 must be connected to Line 1.
– CT2 must be connected to Line 2.
– CT3 must be connected to line 3 (for three phase 

applications).

– All CTs must be pointed such that positive cur-

rent defined by the arrow of the CT is pointed 
towards the grid.

Table 5-9. CT Setpoints

Setpoint

Behavior

Default

Units

C

•

Overrides automatic CT detection. 

•

When set to 0, the inverter automatically detects the CTs number and 
direction of CTs. 

•

A value of 1 assumes a specific orientation and direction of CTs.

0

N/A

CTTurnsRatio

•

Turns ratio of the CTs installed.

•

Default turns ratio of 1500 is compatible with included clamp type CT's

•

If installation restriction requires larger accessory CT's, set point shall be 
adjusted to 3000. 

1500 

Turns