RCT Power Power Storage AC 4.0 Operating and safety instructions

SETUP
Installation
Power Storage AC 4.0 / 6.0
This setup manual contains a short instruction required
for installing, wiring, commissioning and operating the
inverters. For further instructions on installing or
operating, please refer to the detailed user manual,
which you can access via www.rct-power.com.
RCT Power GmbH reserves the right to make changes
to specifications or documents without prior notice.
RCT Power GmbH shall not be responsible for any
damages resulting from use of this document.
This document does not replace any applicable laws,
regulations, standards or codes.
Warranty conditions come enclosed with the device.
No warranties can be derived from this document.
Intended Product Usage
To prevent personal injury or property damage,
the inverter must only be installed, wired,
connected, commissioned, maintained and
serviced by qualified personnel:
•
Trained in installing electrical devices.
•
Familiar with all applicable laws, regulations, standards
and codes for electrical devices.
•
Familiar with safety requirements and safety-related
guidelines for electrical devices.
•
Familiar with work protection laws and regulations.
•
Using the appropriate personal protective equipment.
Power Storage AC 4.0 and 6.0 are stationary 3-phase
string inverters with integrated battery charger. These
are used as a supplement to store surplus energy in
PV systems.
The stored energy of the battery is converted into grid-
compatible AC power and fed into the house network to
cover the household consumption.
They are not designed for any other application or
connection to other devices.
Any use that differs from or goes beyond the intended
usage is considered misuse. RCT Power GmbH shall
not be liable for any damage resulting from misuse
Any misuse will terminate warranty, guarantee and
general liability of the manufacturer.
EN
Symbol
Level of risk
Explanation
high
medium
low
Immediate
danger of death
or serious injury
Immediate
danger of minor
or moderate
injury
Danger of
equipment or
property damage

2
In 6 Steps to the installed system
Assembly and mounting.
(Section 2, p.3).
Electrical connection of the devices.
(Grid, Battery section 3, p.4-5 /
Communication section 4&5, p.6-7 and section 7, p.9 /
Power Sensor section 6, p.8).
Switch on Inverter (switch on fuses).
(Section 8.1, p.10).
Access to the inverter via APP.
(Steps 1 to 5 in section 8.2, p.11).
Configure the inverter, select the country and norm.
(Steps 8 to 11 in section 8.3, p.12).
Configure Battery and Power Sensor arrange
(Steps 12 to 16 in setup section 8.3, p.12-13).

3
[1] Scope of Delivery
Fig. 1
Look over user
manual..
Wait 10 minutes after
disconnection before
touching inner parts
Hot surface
Electrical device:
grounding necessary
[2] Inverter Mounting
Zum
Item.
Description
A
Setup manual
B
DC Battery connectors
(Weidmüller PV-Stick)
C
Wall bracket
D
Inverter
a
LCD display for information on inverter operation
b
DC battery plugs
c
Cable entries for RJ45 connectors, Battery and
Power Sensor
d
Cable entries for communication ports
e
Cable entry for AC cable
f
Screw hole for additional protective grounding
g
Name plate with technical data, serial number,
symbols:
Item
Description
A
Select non-flammable, firm wall
Room may not contain highly flammable goods, liquids or
gas
B
Protect from snow, rain, direct sunlight and dust.
Observe allowed ambient temperature (-25 … 60°C).
Maximum degree of pollution PD3.
C
Mount in upright position.
Ensure enough space for easy access. Make sure wall
supports inverter weight.
D
Minimum clearance: half of inverter width at both sides and
half of height at top and bottom.
E
Do not place inverter in closed cabinet.
Step
Description
1
Attach wall bracket firmly to wall with 3
to 6 screws (ø 6 to 8 mm), matching
wall plugs and washers (outer ø min. 18
mm).
Material not included in delivery.
2
Take out locking screw of inverter
housing. Hook inverter onto wall bracket
and fix locking screw back.
For lifting and carrying the device 2 persons
must be available always.
The weight of the device is more than 18kg.

4
[3] Electrical Connection
[3.1] Overview Connection Parts
Fig. 2
[3.2] AC Connection
Risk of death or injury due to electric shock!
While the inverter is connected to grid (AC
voltage source) and to the battery (DC voltage
source), high voltage is present in cables and
inner parts of inverter.
•
Important: All voltage sources ( DC / battery and AC
/ utility grid) must be disabled before any electrical
work.
To disable battery DC voltage connection turn battery
switch to 0-position and wait 10 minutes before
continuing.
To disable AC voltage connection turn off AC switch,
main breaker or fuse. Make sure, other persons don’t
switch back.
Do not enable voltage connections until work is finished.
•
During DC-connection: Never touch positive and
negative cable ends simultaneously!
•
During AC connection: Do not exchange L, N and PE
wires!
•
Make sure other persons keep away during electrical
work
Risk of death or injury due to electric
arc!
Disconnecting DC plugs under load can
cause electric arcs.
Risk of damage due to improper
installation and operation or misuse.
•
Contact local utility company or grid operator
before connecting inverter to grid.
•
Provide for an AC disconnection device
(typical miniature circuit breaker 3 pole 6kA,
B-characteristic 16A).
•
If required in country or installation, install a
residual-current device (RCD), or residual-
current circuit breaker (RCCB).
•
Inverter contains no owner serviceable parts.
Contact local authorized personnel for service.
•
Do not remove name plate.
•
Only RCT Power certified batteries complying
with the demands of the certain region are
allowed to be used.
Item
Description
A
AC terminal block for L1, L2, L3, N and PE
B
RJ45 connectors for
battery and Power Sensor
C
Communication board
D
Ethernet terminal
Step
Description
1
Remove cover of inverter.
Locate AC terminal block (Fig. 2, A).
2
Feed cable through AC entry (Fig. 1, e).
Push down clamps to insert L1, L2, L3, N and PE.
3
Tighten swivel nut of cable entry.

5
[3.3] DC Battery Connection
Make sure DC switch is “0”, the battery ON/OFF switch set to “0” and AC switch, main breaker or fuse is “OFF”.
Plug corresponding plus and minus poles into battery plugs of inverter.
(The connection cable from the inverter to the battery is not included).
[3.4] Additional Protective Grounding
Material not included in delivery.
If required in the country of installation, attach a second protective earth connection to the Power Storage Inverter
housing.
Step
Description
1
Do not turn plug parts before inserting the
cable.
Select correct plugs for polarity of PV and
battery strings.
2
Push cable into plugs straight until the spring
clamp locks.
3
Turn lower part of plug shut.
DC cable-
DC cable +

6
[4] I/O-Board Communication Connection
Fig. 3
Communication Ports
[4.1] Connection of Communication Ports
[4.2] Wiring of Communication Ports
Item
Description
1
X102: Serial RS485 interface.
2
X100: Multifunctional relay, max. 24 V, 1 A.
3
X101: Power management: 4 digital inputs for
potential free relay contacts.
4
X103: Digital in/out (S0-signals)
max. input 24 V,
max. output 5 V, 10 mA.
Step
Description
1
Open cable entry (Fig. 1, d) and feed cables.
2
Select correct port (see next section), press down spring clamp, insert cables and release.

7
[5] RJ45 Connectors for Power Battery and Power Sensor
The inverter communicates with the battery via the CAN-Bus.
If inverter is delivered with optional Power Sensor and Power Switch please refer to user manual of these items for
further detailed commissioning information.
Fig. 4
RJ45 –Communication Ports
[5.1] Connection of RJ45 –Communication Ports
[5.2] Wiring of RJ45 –Communication Ports
Communication with Power Battery
Additional Power Sensor Communication
Item
Description
A
CAN BUS:
Battery communication connector.
B
Power Sensor:
Power Sensor communication connector.
Step
Description
1
Open cable entry (Fig. 1, c) and feed cables.
2
Select correct port (see Fig. 4 and next section), insert cables in RJ45 connectors.

8
[6] Connection Power Sensor
Step
Description
1
Place the Power Sensor in the service
entrance box.
2
Click the three current sensors around the
L1, L2 and L3 wires in the service entrance
box.
(The order and direction of installation is
not important).
3
Connect the Power Sensor to the Current
Sensor communication connector Power
Sensor „B“at the Power Storage via patch
cable (see Fi. 4).
4
For further configurations please refer to
user manual.
The functionality of the Power Storage AC system is based on energy consumption
measurement.
This sections applies only if RCT Power Sensor is used herefor.

9
[7] Connection Ethernet interface
In addition to WiFi communication, the Power Storage AC offers the option to communicate via an Ethernet
interface after initial start-up.
For this, a corresponding network cable (at least Cat5e) must be connected to the Power Storage AC and the
corresponding terminal (preferably a router).
The configuration of this connection is made via the menu item "Network settings” in the RCT Power APP and is
explained in the manual.
Step
Description
1
Open cable entry (Fig. 1, c) and feed cable.
2
Select correct port, insert cable in RJ45 connector.
RJ45 connector

10
[8] Commissioning
Important!
Ensure proper mechanical an electrical installation before commissioning the solar inverter.
Check the cables to ensure, that they are in sound condition.
The DC-connectors must not be disconnected under load. Always switch off battery first !
To ensure proper function of the AC system, a RCT Power Sensor is required, which transmits the
grid feed-in power to the inverter.
If a storage system already exists, this information can also be transmitted via LAN / WLAN and
thus dispenses with the RCT Power Sensor.
In order to make visible an external power generator on the App, it must be connected to a digital
input. This may require a further energy meter with pulse output.
Further configuration inter alia for the networking of RCT Power devices LAN / WLAN can be found
in the manual on ou website www.rct-power.com.
[8.1] Switch on Inverter
Step
Description
1
Establish grid connection via the external circuit breaker.
2
If there’s a 3-phase mains, the display of the device
switches on.

11
[8.2] Access to the inverter
The Solar Inverter is equipped with an internal Wi-Fi unit. To set up Solar inverter you need to
access via Wi-Fi due to the suitable Android APP.
The Android App is the central user interface for commissioning.
It ensures easy data collection and troubleshooting.
Obtaining Android App: Go to Google Play Store, search for “RCT Power App”, and install.
Step
Description
1
Activate Wi-Fi on your smartphone (or tablet
computer).
2
Connect with SSID identical with the name of the
Power Storage on inverter display via Wi-Fi.
(e.g. PSAC 6.0 PPRP).
If the Inverter is already in a network via
Wi-Fi, connect to the network.
3
If you connect the first time with a device to the
inverter you need a password.
The password corresponds to the serial number
of your device (see display or name plate).
4
Start the „RCT Power“ APP.
5
Switch to tab “Network” and press “Scan”.
6
Activate “10.10.100.254“ (or if you have renamed
the device choose this) by choosing radio button.
7
If the connection is made with an inverter, the
name is displayed on the head and the icon is
edged.
Only an example !

12
[8.3] Battery and inverter configuration
8
Press „“
9
Enter setup procedure by “Login”
(password: “installer”).
10
Choose “Land and Norm”, select appropriate
norm and “apply”.
11
Wait during parameters are synchronizing and
stored. When finished press “Finish”.
Return to the main menu.
12
Go to "Device" and click on "Settings", then click
"Battery".
13
Click on “Battery type” and select
"Li-Ion RCT Power" or your corresponding battery
type.
14
Turn on the battery by setting the battery ON / OFF
switch to "1".

13
15
The inverter now connects to the battery.
After the inverter has checked the specifications
and connected to the battery, it starts to arrange
the current sensors.
Once this is done, the inverter resets and flashes
the settings.
After that he starts to calibrate the battery.
The battery is charged to 100%, this may take
several hours.
When calibration is complete, the system
automatically switches to compensation mode.
16
Check, if the Power Sensor has been arranged.
Go to the hompage “online” and press the
“ “ symbol and check the display
Current sensors are tuned = 1
Note: For further information on installation and operation, please refer to the detailed user manual, which
can be obtained from our website www.rct-power.com
[9] Switch off the system
Step
Description
1
Switch off the battery via turning the ON / OFF switch to "0".
2
Disconnect the inverter from the mains through the external circuit breaker or mains switch.
3
Wait at least 10 minutes for the capacitors to discharge.
4
Remove the battery connectors (Fig.1, b).
Squeeze the locking of the plug and pull the plug.

14
[10] Technical Data
Power Storage AC 4.0 6.0
Order Number IAP040N1AE0 IAP060N1AE0
BATTERY-INPUT
DC voltage range 120 V … 600 V
Maximum charge / discharge current 20 A / 20 A
Maximum charge / discharge power 4000 W / 4000 W 6000 W / 6000 W
Connector type Weidmüller PV-Stick (MC4 compatible)
AC-OUTPUT
Rated AC output power 4000 W 6000 W
Maximum active power 4000 W 6000 W
Maximum apparent power 6300 VA 6300 VA
Nominal AC current per phase 5,8 A 8,7 A
Maximum AC current per phase 9,1 A 9.1 A
Rated frequency 50 Hz / 60 Hz
Frequency range 45 Hz ... 65 Hz
Max. switch-on current 13 A, 0,1ms
Max. fault current (RMS) 285 mA
Rated AC voltage 230V / 400 V (L1, L2, L3, N, PE)
AC voltage range 180V ... 270V
Total harmonic distortion (THD) < 2% at rated power
Reactive power factor (cos phi) 1 (adjustable range 0,8 cap….0,8 ind )
Anti-islanding operation Yes
Earth fault protection RCD
Required phases, grid connection 3 (L1, L2, L3, N, PE)
Number of feed-in phases 3
Grid voltage monitoring 3-phase
Type of AC connection Spring clamps
PERFORMANCE
Stand-by consumption < 4.0 W
Maximum efficiency ( Battery –Grid ) 96,62%
Maximum efficiency ( Grid –Battery ) 96,41%
Topology Transformerless

15
OTHER
DC overvoltage category II
AC overvoltage category III
Data interface WIFI, LAN, RS485, Multifunktional dry contact,
4 x digital in, 2 x digital in/out
Display LCD dot matrix 128 x 64 with backlight
Cooling Convection
IP-degree of protection IP 65
Max. operating altitude 2000 m
Max. relative humidity 4-100% (condensating)
Typical noise < 35 dB
Operating temperature range -25°C … 60°C (40° at full load)
Type of installation Wall mounting / outdoor
Dimensions (height x width x depth) 570 x 440 x 200 mm
Weight 22 kg
SAFETY / STANDARDS
Protection class 1
Certificates CE, VDE-AR-N 4105:2011-08, EN 50438
Further certificates:
www.rct-power.com
EMC EN61000-6-2, EN61000-6-3, EN61000-3-2, EN61000-3-3
Safety EN/IEC62109-1, EN/IEC62109-2
BLOCK DIAGRAM

RCT Power GmbH
Line Eid Str. 1
78467 Konstanz, Deutschland
Tel.: [phone]
Mail: info[at]rct-power.com
Internet: www.rct-power.com
01/2019