Weidmüller VPU IOT AC II 3 Plus 1 300/50 User manual

VPU IoT AC II
VPU IOT AC II 3+1 300/50 2735900000
Surge Protection Device
Operating instructions

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Content
1 About this documentation 3
1.1 Target group 3
1.2 Symbols and notes 3
2 Safety 4
2.1 Intended use 4
2.2 Personnel 4
3 Transport and unpacking 5
3.1 Unpacking the product 5
4 Device description 6
4.1 Operating modes 6
4.2 Technical data 7
5 Mounting and electrical installation 8
5.1 Mounting 8
5.2 Electrical installation 8
6 Setup 9
6.1 Startup 9
6.2 Initial commissioning 9
6.3 Conguration 9
6.4 Performingarmwareupdate 11
6.5 Networkandsecuritycongurationsettings 12
6.6 MODBUS registers map 13
7 Operating the device 14
7.1 Dashboard 14
7.2 Getting information about the device 15
8 Troubleshooting and spare parts 16
8.1 Troubleshooting 16
8.2 Spare parts 16
9 Disposal 17
Manufacturer
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 26
32758 Detmold, Germany
T [phone]
F [phone]
www.weidmueller.com
Document No. 2807610000
Revision 00/September 2021

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1.1 Target group
These operating instructions are intended for the operator
of the product and for all persons handling the product dur-
ing its life cycle.
1.2 Symbols and notes
The warnings contained in the documentation are divided
into hazard categories.
DANGER!
Notes with the signal word "DANGER" warn you of situa-
tions which will result in serious injury or death if you do not
observe the specied instructions.
WARNING!
Notes with the signal word "WARNING" warn you of situ-
ations which may result in serious injury or death if you do
not observe the specied instructions.
CAUTION!
Notes with the signal word "CAUTION" warn you of situ-
ations which may result in injury if you do not observe the
specied instructions.
NOTICE!
Notes with the signal word "NOTICE“ warn you of a danger
which may result in material damage or malfunctions of the
product if it is not avoided.
The situation-dependent warnings may contain the follow-
ing warning symbols:
Symbol Meaning
Warning of dangerous electrical voltage
Warning of electrostatically charged compo-
nents
Qualied electrician necessary
Notes on the documentation
Additional formatting is used in the rest of the text which
has the following meaning:
Sections of text next to this arrow contain infor-
mation which is not related to safety, but which
provides important information regarding correct
and e󰀨ective work.
► All instructions can be identied by the black triangle
next to the text.
– Lists are indicated with dashes.
►Store the instructions such that they are
available at all times. Do not store the in-
structions in the product enclosure.
The document is available to download from
the Weidmüller website.
►Also refer to the inverter manufacturer's
documentation.
1 About this documentation

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2 Safety
DANGER!
Risk of electric shock!
Live parts carry high voltage during operation.
►The device has to be covered under the installation
hood before pressing the operation button for commis-
sioning.
►Only switch on and use the device when all conductors
are connected and all arresters are mounted in the sock-
et.
►Do not use the device near explosive gases, vapours or
in a humid environment.
►Do not use damaged product.
► Do not insert any foreign objects into the contact sockets
of the device.
NOTICE!
Risk of material damage!
►Only use the device for its intended purpose.
►The device must not be used if it is damaged or other
defects have been identied.
► The device must not be opened, modied or converted.
► Use only the specied spare parts and accessories.
►Use only the supplied test leads.
►Use the test leads only together with the supplied test
adapter.
2.1 Intended use
The VPU IoT AC II is a type II surge protection device
(SPD). The device is used for protecting low-voltage con-
sumer installations and electrical or electronic devices from
the surge voltages which occur from atmospheric discharg-
es (lightning) or from switching operations (transients).
The device detects overcurrent events as well as earthing
faults in the plant. The device can be connected to a cloud
via IoT.
The device must be mounted in an IP20 cabinet that is ac-
cessible by authorised personnel only.
2.2 Personnel
Only qualied electricians may carry out the installation,
the initial commissioning, the reset and troubleshooting.
Conguration can also be done by trained users

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►Transport the device to its destination in its original
packaging.
►Observe the instructions regarding handling, moisture,
shock, tilt and temperature indicators on the packaging.
► Observe the humidity specications and the temperature
range specied for transport.
►Protect the surfaces as necessary to prevent damage.
►When transporting the equipment or storing it temporar-
ily, make sure that the surfaces are protected from the
elements and any external inuences, and that they are
kept dry and clean.
3.1 Unpacking the product
► Unpack the product and the instruction sheet.
►Never install a damaged or otherwise defective surge
protection device.
3 Transport and unpacking

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The VPU IoT AC II is a surge protection device (SPD) that
detects overcurrent events as well as earthing faults in the
plant. The device can be connected to a cloud enabling
digital services. The current device status can be trans-
ferred and monitored via internet.
The measured data and detected events are transmitted
and permanently stored in the cloud. The current device
status is visualised and enables predictive maintenance
activities like replacement in time. The device status can
be:
– SPD fully functional
– SPD still functional
– SPD replacement recommended
– SPD defective, replacement necessary
The detection of transient overvoltages is very sensitive,
so that even the smallest events can be detected. Conclu-
sions about the power quality in a TN-S or TT system can
be drawn from the number and frequency of events.
For the internet connection a Wi-Fi network is required with
reliable connection quality during the whole life cycle of the
device. The Wi-Fi network must provide internet access for
the device to deploy a public cloud endpoint.
3
4
2
1
5
6
Figure 4.1 Device description
1 Clamping points for L1, L2, L3 and neutral
2 Statuswindow
3 Arrester
4 PE clamping points
5 Operation button
6 LED
4.1 Operating modes
Factory default mode
------------------------------------
Wi-Fi hotspot ON
Auto-expiry in 30 min
------------------------------------
LED is permanently green
Maintenance mode
----------------------------------------
Wi-Fi infrastructure connected
Wi-Fi hotspot ON
Auto-expiry in 10 min
----------------------------------------
LED flashes green fast
Normal operation mode
----------------------------------------
Wi-Fi infrastructure connected
Wi-Fi hotspot OFF
----------------------------------------
LED flashes green slowly
Figure 4.2 Operating modes
LED indicators
LED status
Priority Type Duration Factory default Normal
operation
Temporary
hotspot
0 Search Instant Green,fastflashing
1 SPD fault Long Red, permanent
2 Leakage Long Red, permanent
3 Earth fault1Long x Red, permanent
4TOV Long x Green,fastflashing
5Phase
loss2Long Red, permanent
6 Wi-Fi loss Long x Red,fastflashing
1 Manually triggered
2 See Chapter 7.1
Factory default
– LED  ashes green fast for 3 seconds. If the Wi-Fi hot-
spot is on, the LED lights permanently green
– change of the default values via user interface
Normal operation
– LED  ashes green slowly
Temporary hotspot (Maintenance)
– LED  ashes green fast
– for the initial device setup
–for the change of essential con guration
– the current IP can be read out via user interface with
DHCP
4 Device description

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Device description
4.2 Technical data
VPU IoT AC II
N-PE L-N
Type 305 V 300 V
Grid (Un) @ 50...60 Hz
230 V
N-PE
spark gap
230/400 V
TN, TT
Voltage regulation ±10 % ±10 %
Un0 V 240 V
In/ Imax (8/20 µs) 40/65 kA 20/50 kA
IPE 1 µA 0.33 mA
II–100 Arms
ISCCR – 25/50 kA
Up@ In≤1500V ≤1500V
Uc305 V 300 V
Wire cross-section min.
2.5 mm2 (AWG14)
2.5 mm2 (AWG14)
2.5 mm2 (AWG14)
l = 18 mm / 2...3 Nm
Wire cross-section max.
2.5 mm2 (AWG2)
2.5 mm2 (AWG2)
l = 18 mm / 2...3 Nm
Ambient temperature -40...+85 °C
Storage temperature -40...+85 °C
Relative humidity
(non-condensation) 5...95 %
Altitude 4000 m
Degree of protection IP20, built-in
Height x Width x Depth 90 x 108 x 68 mm (one port SPD)
Approvals / applied
standards / directives CE, IEC/EN 61643-11
Communication settings
Maintenance interface
IEEE 802.11 b/g/n Access Point
Frequency band 2.4 GHz
Encryption WPA/WPA2
SSID
VPU_AC_IOT_
xxxxxxxxxxxx (full
MAC address)
Password Detmold01
Temporary access (default 10 min)
Limited to a single STA
Wi-Fi interface
IEEE 802.11 b/g/n STA
Frequency band 2.4 GHz
Encryption WPA/WPA2
Operating systems
supported
Windows10
Android 8 or later
iOS 13 or later

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5 Mounting and electrical installation
5.1 Mounting
See instruction sheet in the packaging box.
5.2 Electrical installation
The installation must be carried out by a
qualied electrician in accordance with the
information in the instruction sheet and the
local conditions and standards.
If the product is damaged, do not install and
use the product.
►Carry out the wiring according to the intended applica-
tion (see instruction sheet).
If the product has already been installed elsewhere and is
now being reused, follow the instructions to restore the de-
vice to its factory defaults, see Chapter 6.3.
The LED indicator on the device lights permanently green if
installed correctly.

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6.1 Startup
Prerequisites:
– The power supply must be switched on. The LED lights
permanently green.
– For the setup you need a Wi-Fi capable device and a
supported browser, see Chapter 4.2.
The startup procedure includes the following steps:
– initial commissioning
– conguration
6.2 Initial commissioning
The commissioning must be carried out by a
qualied electrician.
►Create a temporary hotspot by pressing the operation
button 5 times briey.
The LED ashes green for 3 seconds.
The temporary hotspot mode is now activated for a period
of 10 minutes. After this time the hotspot mode is automati-
cally switched o󰀨.
►Connect to the hotspot of the device via a Wi-Fi capable
device, e.g. tablet.
Figure 6.1 Using a Wi-Fi hotspot
The unit's SSID is displayed as VPU_AC_IOT_
xxxxxxxxxxxx (x = full MAC address). The default pass-
word is Detmold01.
If the SSID of the unit is not visible, the tempo-
rary hotspot mode has expired.
►Reactivate the temporary hotspot mode as
described above.
► Check the voltage level, the leakage current and the sta-
tus of the arresters.
6.3 Conguration
The conguration is done via user interface. A change of
Wi-Fi and connection settings is only possible in temporary
hotspot mode. By clicking Configuration the following set-
tings can be edited:
– Wi-Fi
– Modbus connection
– cloud connection (Cloud)
– device description (Description)
– user password (Change Password)
– factory reset
Changes have to be conrmed by clicking the SAVE but-
ton.
Conguring the Wi-Fi
Prerequisite:
You must be able to access the device via IP address in his
wireless network.
►Open the browser and enter the IP address 172.22.87.77.
► Click Configuration.
► Click Connectivity, WiFi.
►Enter the user name and the password.
The default user name is admin and the default password is
SmartSPD.
The password must be changed upon rst login.
Figure 6.2 Changing the password
►Connect to the access point of the user's wireless net-
work.
► Click Enabled.
► Click CHECK CONNECTIVITY.
A Wi-Fi test is performed.
6 Setup

Setup
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Figure 6.3 Connecting to the Wi-Fi
After the Wi-Fi test you can proceed with further congura-
tion. It is also possible to set a static IP address.
Services list applicable to Wi-Fi interface
Service Protocol Port Traffic
DHCP UDP 67 Outbound
DHCP UDP 68 Inbound
DNS UDP 53 Outbound
DNS TCP 53 Outbound
HTTP TCP 80 Inbound
HTTPS TCP 443 Outbound
MODBUS TCP TCP 502 Inbound
NTP UDP 123 Outbound
PING ICMP N/A Inbound
Conguring the connection via Modbus
►Load the website of the device.
►Select the Modbus interface.
Conguring the cloud
►Create a cloud account (WM Cloud or third party cloud).
►Add the device.
The cloud generates communication parameters.
Connecting to the cloud
Prerequisite:
– You have created a cloud account.
►Load the website of the device.
► Click Connectivity, Cloud.
►Select the Azure IoT interface.
Figure 6.4 Connecting to the cloud
►Enter the connection string.
The device will conrm the communication with the cloud.
Conguring the device description
► Click Description.
Figure 6.5 Description configuration
►Enter a text as a device description.
►Enter the device location.
Changing the password
► Click Change Password.
►Enter the current password.
►Enter the new password and retype it.
Resetting to factory defaults
In case of changing the application it may be necessary to
reset a device.
For security reasons it is recommended to reset
a device before it is replaced.
The reset to factory defaults must be carried
out by a qualied electrician.
►Load the website of the device.
►Open Reset configuration to factory defaults.