Schleifenbauer PDU User manual

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V2.52 Schleifenbauer PDU
User manual
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Index
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Layout of this manual 4
UC_What’s new 4
Introduction 5
Power distribution meets intelligence 5
Interfaces 5
Accessories 5
Colored housing 6
Measurements 6
Part I - Installation of hardware 7
Safety warnings 7
Expert personnel 7
Technical installation requirements 7
Visual inspection 7
Testing 8
Cleaning 8
Contents of the package 8
Additionally needed tools 8
Mounting the PDU in cabinets 8
How to mount a PDU horizontally (19 inch)? 8
How to mount a PDU vertically (= 0U)? 9
How to install on a flat surface?...table top mount 9
How to prevent hot spots in a cabinet? …sunken installation
9
How to mount a PDU without tools? 9
How to achieve maximum mounting flexibility? ...mounting
with profile clamps 9
Cabling the PDU: ethernet, databus and sensors 10
How to connect the PDU to LAN? 10
How to connect a databus? 10
How to connect sensors to a PDU? 10
How to connect a NO/NC contact on Classic PDU and
ethernet PDU? 11
How to connect NO/NC contact on a g3 PDU? 11
Part II - User manual 12
How to maintain a PDU? 12
How to be sure the status of switchable outlets will not
change during firmware upgrade or restarting of the
controller? 12
Life-Supporting Policy 12
Part IIA - Locally monitoring: device display 13
How to change settings locally via PDU display? 13
How to stop a blinking display? … local alert reset 14
Why do alerts occur? 14
How to check the load balance, the temperature / humidity
or the status of the NO/NC contact? 14
How to get back to the first page? 15
How to check an outlet status locally? 15
How to check input and/or outlet measurements? 15
How to read measurements of optional sensors and what
options are possible? 16
Option 1: load page 16
Option 2: sensor pages 16
How to read Branch Residual Current measurements? 17
Data center practice: Residual Current Monitoring in
relation to Residual Current Devices 17
Where to measure residual current? 17
How to find the PDUs unit address, tag, name or location? 17
How to check the way the PDU is connected to the LAN? 18
How can I check in which mode and with what protocol the
PDU is running? 18
How to check the installed firmware version? 19
How to check for traceability information ? 19
Part IIB - Remote operating and monitoring: Web interface 20
Introduction 20
How to enlarge a pane in L sized screens? 21
How to select English or German language? 21
How to change and save settings in the web interface? 21
Dashboard – tab 22
System status 22
Load 25
Interfaces 25
Sensors – tab 26
Inputs – tab 27
Outlets – tab 28
System – tab 30
Identification 31
Configuration 32
Reset 32
Settings 33
Interfaces – tab 36
Part III - Administrator manual 37
Specific manuals 37
How to change SNMPv3 settings? 38
How to use the ‘connected devices’ section in the web
interface? 39
How to add new devices on an existing ring? How to solve
duplicate devices? 39
How about login profiles, usernames and passwords? 40
How to change factory passwords? 41
How to change the Ethernet link settings? 41
Network configurations 42
DHCP and default address 42
How to configure the IP settings manually? 42
How to setup IPv6? 43
IPv6 Autoconfigure (SLAAC) 43
Static IP 43
How to configure IPv6? 44
How to set up IPv6 address filtering? 45
How to send SNMP Traps with IPv6? 45
How to stop the alert signaling? ...auto reset alert 46
Firmware downgrade / upgrade 46
How to upgrade the firmware? ...using SPST 46
How to upgrade the firmware? ...using USB 47
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Schleifenbauer databus: what is it? 48
How to prevent data losses because of cable cuts? ...ring
redundancy 49
How to make a databus using Schleifenbauer Gateway? 50
How to connect the databus to LAN without a Gateway?
...using a PDU! 51
PART IV - Problem Solving 52
How to perform a “Software reset”? And why? 52
Remotely 52
Locally 52
How to perform a “Factory reset”? 52
How to reset peak current?.....and other dips or peaks 53
Recycling 54
PRODUCT SPECIFICATIONS 54
SERVICE AND SUPPORT 54
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LAYOUT OF THIS MANUAL
This manual is split in three sections. You can focus on the section that fulfills your need when installing, operating and/or
managing the PDU.
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The “How to....” section is meant to guide you directly to a solution for a problem you are faced with. It is not necessary to
read the complete manual.
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Part I
Installation manual
Prepare PDU for use:
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●safety issues
●mounting the PDU
●cabling the PDU
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Part II
User manual
Operator and user part:
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●operating/read out via the PDU-display
●operating/read out via the web interface
●problem solving
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Part III
Administrator manual
Admin part:
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●configure via the web interface
●set up via the web interface
●problem solving
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Part IV
Problem Solving
In this chapter you can find the frequently asked questions
(FAQs)
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WHAT’S NEW
●Firmware upgrade via USB port
●Near zero cross switching of outlet relays
●Support for 54 metered and/or switched outlets
●Voltage drop alert is now based on the input line voltage rather than a fixed value for 120 and 230 Volt operation.
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INTRODUCTION
POWER DISTRIBUTION MEETS INTELLIGENCE
The Schleifenbauer Intelligent Power Distribution Unit (PDU) is designed to distribute power for many years and without
problems. It is equipped with a Schleifenbauer databus which makes it possible to read and manage many PDUs with a
single IP address. An ethernet port was added to the individual PDUs so that alongside the advantages of a databus, a
whole range of new options has become available.
Schleifenbauer PDUs bring together or merges the interests between IT and infrastructures, making it a real bridge builder.
The PDU may contain:
●metered outlets
●switched outlets
●metered and switched outlets
●passive outlets
Monitoring capabilities will be described in detail within this manual in coming sections.
INTERFACES
In the Admin part of this manual you will find information about the “Interfaces” with which we mean the technology to
communicate via your LAN with the Schleifenbauer databus. There are several possibilities:
●(embedded) web interface
●Modbus/TCP
●SNMP
(Simple Network Management Protocol)
●(SP)API
(Schleifenbauer Products Application Programming Interface)
ACCESSORIES
The following accessories can be purchased from Schleifenbauer, additionally. Please check the Installation Section for
more details regarding mounting brackets.
●C14/C20 plugs if C13/C19 outputs are used
●Different types of attachment brackets
o19” rack mounting brackets
oTabletop mounting brackets
oMounting plates for sunken installation
oProfile clamps
oToolless Mounts
●Customer Specific solutions related tools
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Please check www.schleifenbauer.eu for further details regarding the accessories.
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COLORED HOUSING
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Standard the housing color of the Schleifenbauer PDUs is black. It is also possible to anodizing the housing in 5 other
colors.
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01. black
02. green 
03. orange
04. blue
05. red
06. Yellow
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Not shown but available is “natural”
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Note:  actual colors may vary!
MEASUREMENTS
Measurements of the input and the outlet level can be found below:
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Measurement
Unit
Remark
Energy
(kWh)
total & subtotal
Voltage
(V)
with voltage dip registration
Current
(A)
with peak value registration and drop detection.
Power factor
(%)
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Apparent power
(VA)
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Real power
(W)
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Temperature
(°C)
with optional sensor
Relative humidity
(%)
with optional sensor
NO/NC contact
0-2
devices equipped with a USB-port can operate two NO/NC contacts
(see chapter “How to connect a NO/NC contact)
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PART I - INSTALLATION OF HARDWARE
Please use the information in this chapter to inspect, install and connect the Schleifenbauer Intelligent PDU and all
optional mentioned accessories.
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The PDU must be installed in a restricted access location
Socket-outlet must be installed near the equipment
Socket-outlet must be easily accessible
Installation by expert personnel only
After installation: default passwords / RC4 keys MUST be changed (see: Part III - Administrator manual)
SAFETY WARNINGS
This manual contains important safety instructions that should be followed during installation and operation of the PDU.
Please read this manual carefully since there may be serious or fatal personal injury and damage to the equipment if the
safety instructions, warnings and directions are not followed. Please save this document for future use.
EXPERT PERSONNEL
Installation, maintenance and inspection of the Schleifenbauer Intelligent PDU must be carried out by adequately trained
persons according to NEN EN 50110-1, with full observance of the specifications of NEN EN 50110-1 and NEN 3140.
TECHNICAL INSTALLATION REQUIREMENTS
Before installing and putting the system into operation, check whether the characteristics of the electrical system to which
connection is to be made correspond to the product specifications.
●The Schleifenbauer Intelligent PDU has been designed for connection to electrical systems that comply with IEC
60364 or in the Netherlands, NEN 1010.
●The voltage, maximum permitted current and the number of phases must be correct. This information is
displayed on the front side of the PDU.
●The maximum permitted power must be taken into account with regard to the maximum length and the diameter
of the connecting lead.
●The values and characteristics of the in-series protective devices must match the PDU and the protective
elements included in it.
●The environmental factors must correspond to the product specifications.
VISUAL INSPECTION
After opening the cardboard box and removing the packaging material, the PDU should be checked visually. The PDU
should not be put into operation if damage is detected such that safe and proper operation cannot be guaranteed. In such
cases, please contact Schleifenbauer Products BV.
Note that, in the case of PDUs that are equipped with an over voltage protection, the overvoltage protection and the
respective overcurrent protection (if applicable) must be inspected on a regular basis.
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TESTING 
Each Schleifenbauer PDU is individually tested according to the NEN 3140 standard. Test reports are available on request.
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For measurement of insulation resistance, the measuring voltage used must be lower than or equal to the
voltage according to the product specification.
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CLEANING
The PDU may only be cleaned by wiping off the outside with a clean dry cloth.
CONTENTS OF THE PACKAGE
The Schleifenbauer Intelligent PDUs are shipped in a cardboard box. Where applicable, dispose the packaging material in a
responsible manner, in accordance with local regulations. All of the materials used for packaging can be recycled.
Immediately after receipt, check whether you have received all of the goods.

The following items are delivered for each PDU:
●fixing materials: these can be attached to the PDU (19’’ or table-mounting brackets), or are delivered separately if
they have been ordered separately;
●the installation manual (1 per shipment);
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Please note that the PDU User Manual can be found online at http://schleifenbauer.eu
ADDITIONALLY NEEDED TOOLS
The following tools are needed to install the PDUs:
●cage-nuts with bolts and washers
●suitable screwdriver.
MOUNTING THE PDU IN CABINETS
How to mount a PDU horizontally (19 inch)?
Each 19’’ rack bracket of a PDU has holes for horizontal mounting in 19” racks. The holes are
positioned so that an appropriate fixing hole is always available for a PDU with a profile height of
1.5 U. Using one or two of the 4 holes allows mounting without wasting space.
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How to mount a PDU vertically (= 0U)?
In the case of a PDU for vertical mounting, the connection lead is fed through a hole in the upper, bottom or front face.
There are 4 options for horizontal mounting:
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How to install on a flat surface?...table top mount
Gives the profile possibility to be mounted to a flat surface (tabletop).This
arrangement is used for:
●vertical mounting to the bracing beams in the 19” cabinet
●fixing to a mounting plate
●mounting between the 19” uprights: the profile attaches to the front
of the uprights
The holes on the brackets are located as far as possible to the outside so
that it can also fit and tighten the bolts if a swivel gland has been placed
on the short side.
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How to prevent hot spots in a cabinet? …sunken
installation
When power leads might block the flow of hot exhaust air, especially in
case of a 600mm wide cabinet, it is necessary to create flow space. This
can be done by using the “sunken installation brackets”. Because of the
shape of the bracket, it is possible to ‘partially sink’ the profile into the
cabinet and save space.
These mounting plates can be used for many different cabinets.
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How to mount a PDU without tools?
Toolless mounting is created by making attachment points on the rear of
the PDU housing. There is a wide range of cabinet brackets available, all in
which you can hang the PDU without using tools.
Toolless Mounting can be done as single PDU or double PDUs (see photo).
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Mounting brackets can be custom made by Schleifenbauer.
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How to achieve maximum mounting flexibility?
...mounting with profile clamps
The clamps, made of spring steel, can be installed in the position of your
choice. The clamp fits around the PDU profile and is secured with a
fastening screw. Best is to use one clamp for every 50 cm of profile length.
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CABLING THE PDU: ETHERNET, DATABUS AND SENSORS
How to connect the PDU to LAN?
10/100 Mbps LAN Ethernet port
Connecting the PDU to a Local Area Network (LAN) provides
communication through an Ethernet network, if the PDU is connected
exclusively, or simultaneously with the databus.
The RJ45 connector for the network cable must be plugged into the
Ethernet port:
●Connect the RJ45 Ethernet cable to the Ethernet port on the PDU
and to the Ethernet connector on the LAN device; when
connected, the orange LED – marked “lnk” - will blink
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How to connect a databus?
There are three black communication ports. One is marked as sensorport,
the other two as databus ports (in and out).
The left databus port is the “incoming” databus port. The right databus
port is “outgoing”. This is a MUST HAVE for devices in bridge mode. For
devices in hybrid mode it is a NICE TO HAVE.
The serial databus in the Schleifenbauer PDU uses CAT5 patch cables.
The terms IN and OUT are arguable. Data will be send and received            
by both ports but to close the databus ring, it is recommended to follow             
the connection diagram. See it as the best way to daisy chain PDUs.
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How to connect sensors to a PDU?
The PDU has a RJ12 connector sensor port for connecting a digital
temperature sensor, a combined sensor for temperature/humidity or one
or multiple dry switch contacts.

Plug and play
The PDU registers which sensor is connected and automatically adapts
the menu in the display to the sensor(s) that it has detected.
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Use Schleifenbauer sensors only
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How to connect a NO/NC contact on Classic PDU and ethernet PDU?
The sensor port makes use of the RJ12 6P6C standard (= 6 position, 6 conductor). To connect a NO/NC contact on the PDU
sensor port, you have to make use of pin 1 and pin 6 ; as shown in the figure below.
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Note that on a PDU only 1 NO/NC contact can be connected.
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Status of the contact will be displayed. It is not possible to send a command.
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Classic PDUs (= without ethernet port) do not support a NO/NC contact
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How to connect NO/NC contact on a g3 PDU?
3rd generation PDUs and DPM’ s are equipped with a USB-port and are able to operate two NO/NC dry switch contacts:
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PART II - USER MANUAL
How to maintain a PDU?
Internal maintenance is not an option
A Schleifenbauer Intelligent PDU may not be opened by unauthorized persons. In the event of malfunction or faults in
the PDU, please refer to the warranty conditions. Schleifenbauer Products BV will not accept warranty claims if the PDU
has been opened or alterations have been made.

⇒Please pay attention to the operation conditions before installation and operation of the Schleifenbauer PDU.
⇒The Schleifenbauer PDU has to be protected according to the valid installation guidelines.
The rated value of the in-series protective device may not exceed the maximum value indicated on the product.
⇒The Schleifenbauer PDU may not be used in: a humid environment, a seriously contaminated environment or
outdoors.
⇒The manufacturer’s warranty on the Schleifenbauer PDU becomes invalid when the QC sticker on the side of the
profile is broken.
⇒Before turning on the PDU for the first time, make sure that it has been allowed to acclimatize to the ambient
temperature for at least 24 hours. Major temperature fluctuations can lead to the formation of condensation in the
PDU if this guideline is not followed.
⇒Please keep in mind that maximum allowed temperature for a metal enclosure is 70 °C for installation in a normal
location and 90 °C for installation in a restricted access location.

How to be sure the status of switchable outlets will not change during firmware
upgrade or restarting of the controller?
There are no extra safety precautions necessary! Because power distribution and the control over measuring and
switching is separated. This means that while updating or restarting the (controller of the) PDUs, power distribution is not
interrupted.
LIFE-SUPPORTING POLICY
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The Schleifenbauer PDU has been designed for use in data centers where equipment has to meet very high demands
especially regarding to reliability.

The Intelligent PDU however may not be applied in surroundings where a malfunction in the PDU can have consequences
for life support systems.

Life support systems include any devices designated as “critical” by the U.S. FDA. Such systems are found not only in
medical environments such as hospitals, but also on offshore platforms, in petrochemical plants, in air traffic control
centers, etc.
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PART IIA - LOCALLY MONITORING: DEVICE DISPLAY
The intelligent PDU features a display with scroll buttons, LEDs and some ports for connecting accessories. Please keep in
mind that PDUs may differ in configuration and may or may not not have a display.
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(1) PDUs without an Ethernet port are called Classic PDUs. Firmware for Classic PDUs are in the FW1xxx - range
(2) This option is called “Local alert reset” and must be activated via the interfaces
(3) USB-port on g3 (generation 3) only ; to be used for firmware up- and downgrade (from FW2.52 and further)
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How to change settings locally via PDU display?
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Changing settings locally via the PDU itself is not possible! You have to use one of the interfaces.
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See the Administrator part of this manual how to changes the settings
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How to stop a blinking display? … local alert reset
Since FW2.50 alerts are represented on both display and web interface. For example:
The displayed text shows directly what kind of an alert has occurred.
Why do alerts occur?
Alerts are signal flags after an event occurred. For example, if you measure temperature and the environmental conditions
exceeded a configured level - threshold - the PDU will generate an alert. This resolves in:
- SNMP trap (optional)
- The screen of the PDU will start blinking.
- The screen of the PDU will jump to the Alert page which provides information on what happened.
After the temperature has come down again, the event is cleared but the alert still exists. The display will blink until you
“reset” (=clear) the alert.

The LCD display only flashes when an alert is active.
Actions:
●press any button to stop blinking for a short period: blinking will stop so you can read the display
●resetting the alert can be done by pressing both scroll buttons simultaneously; when cleared the              
display will stop blinking (Note: this possibility must be activated on your device; see Admin part of                
this manual)


Remember: you can reset the alert but by doing so, you do not resolve the cause of the alert!
If the alert condition is still present the alert will fire again.

How to check the load balance, the temperature / humidity or the status of the NO/NC
contact?

In the picture you see 3 phases (L1, 2 and 3). The actual information is given in
amperes but also graphically displayed. The higher the load, the more the bar is
filled.
The graphical bar is related to the maximum PDU rating (in the picture it is 32A).
In this picture, there is nearly no load, only on L3 there is a small 0.1A.

DS = status of NO/NC contact [ 0 = open; 1 = closed ]
Te = temperature [degrees C] *
RH = relative humidity [%] *
*only visible when the corresponding sensor has been connected.

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How to get back to the first page?
No alerts (= no blinking display) => shortly press both the scroll buttons (see yellow
arrows).
You will see the first screen in the display.

If there are alerts, first clear these by pressing both scroll buttons (see: “How to stop
blinking display? … local alert reset” ) then press both the scroll buttons to jump to
the first page
How to check an outlet status locally?

Note: every row on the display shows the
state of 9 outlets. So the first ends with
outlet 9, the second row starts with outlet
10
In the “outlets” display you can see how many outlets the PDU has and what their
individual state is.
An overview of the possible states:
0 = off
1 = on
s = scheduled to go off
S = scheduled to go ON
p = power cycling



How to check input and/or outlet measurements?

Example: input page

Note: “Input x” shows the name of the
Input. This information can be configured
from the Web Interface, Inputs tab or from
the other interfaces.


Example: outlet page
With the scroll buttons you can scroll through the pages. The total amount of
pages varies and depends on the configuration of the PDU. For example: the more
outlets the higher the total amount of pages.
In the upper example you see that page 4 of 29 is displayed.
In the lower left corner of the displayed page, you see the subject of the shown
information. In this example: input measurements of L2.
So, when you search for outlets, you need to scroll through the pages until you
reach the “outlet” sections. See lower example

Displayed information can be:
I = current [A]
P = power [W]
U = voltage [V]
Pf = power factor [%] (= real power ÷ apparent power)
Et = energy total [kW]
Es = subtotal energy [kW]

 

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How to read measurements of optional sensors and what options are possible?
Option 1: load page
Sensors are displayed on the "Load" screen whenever there are less than 3 sensors in use. When adding more sensors, one
or more pages are added to the LCD screen to show the sensors readout as shown in the images below:



DS = status of NO/NC contact [ 0 = open; 1 = closed ]
Te = temperature [degrees C]
RH = relative humidity [%]

Option 2: sensor pages
The sensor measurements are displayed in the following format:
< channel number > < sensor type > = < value >
The sensor type is indicated by a letter. The letters are abbreviations for the sensor type as follows:


Example: sensor page 1 of 2


Example: sensor page 2 of 2
Analog: 
T = temperature [°C]
H = humidity [%]
R = residual current [mA]
See “How to read branch residual current measurements”
A = AC residual current [mA]
D = DC residual current [mA]
B = Branch residual current [mA]

Digital: 
I = dry switch contact
S = error status 
Y = activity



For all optional sensors see www.schleifenbauer.eu
 

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How to read Branch Residual Current measurements?

L1 + L2 + L3 + N > 0 mA …. THERE MIGHT BE FAULT IN YOUR SYSTEM !

When the PDU is equipped with a Residual Current Sensor (RCS), measurements of
the residual current are shown in the sensors pages.

(See “Example: sensor pages x of 2” in the previous chapter “Option 2: sensor pages”  ).

In parts of Europe, electrical installations must incorporate devices designed to protect people and prevent fires: the
residual current device, or RCD. A RCD disconnects the circuit if the total for the incoming and outgoing currents in the
monitored phases and their neutral conductor exceed a threshold, for example : L1 + L2 + L3 + N > 30 mA
Data center practice: Residual Current Monitoring in relation to Residual Current Devices
Many devices inside a datacenter operate a switching power supply. These power supplies usually leak a bit of energy to
the protective earth, so even without failing hardware some residual current will occur.
In order to discriminate a single dangerous fault from a sum of harmless smaller faults, one needs to set up a network of
RC-sensors and monitor permanently. RC-monitoring can take place in many forms. The Schleifenbauer RC-sensor offers
Class B metering, thus enabling our customers to set-up an RC-monitoring system that prevents dangerous situations
inside the datacenter.
Where to measure residual current?
When monitoring residual current at a single location it is not possible to determine whether the measured value is a sum
of many small currents or a single larger (dangerous) one. For that reason it contributes to the safety of the personnel
inside a data center when residual currents are metered at several points.

How to find the PDUs unit address, tag, name or location?

You will find all customer specific information about the PDU in the “Custom”
display.
●Adr = address of this unit on the databus
●Tag = vanity tag
●Nme = device name
●Loc = location of the device

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How to check the way the PDU is connected to the LAN?

You will find all information related to the PDUs network connection in the IPv4
Link and IPv6 Link pages.:
IPv4Link:
●Lnk = current Ethernet link status of the device
●St = IP status:
■DHCP: Acquiring/Bound, Static, Static fallback
■‘-‘ when there is no link
●IP = IP address of the device
●NM = subnet mask of the device
●GW = IP address of the Gateway or Router
●MAC = MAC address of the device
The IPv6 link will show up to 3 IPv6 addresses. The first one will be your link-local
address which will always start with FE80:: the second and third will be your LAN
and WAN address respectively.

How can I check in which mode and with what protocol the PDU is running?
In the “IP Interfaces” display you can find information about the device mode in
which the PDU is working:
●Mode = hybrid, databus , bridge, colocation, …


See the chapter “Schleifenbauer databus: what is it?” in this manual
for explanations of the term hybrid, bridge, ….

In the display you can read the status, which protocol and port number is shown
for:
●HTTP
●API
●Modbus
●SNMP
●IPMode (IPv4, IPv6 or both)

When there is active communication with the PDU, the interface
which is running will turn white. In this example “HTTP”.

 


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How to check the installed firmware version?
In the “About” display you can find the installed firmware version of the device. In
this example it is FW02.50.



It is important that the most recent firmware version is running on
the devices. This to ensure good working of the device and databus.
Firmware and service tools can be found on “downloads” page of the
Schleifenbauer website

How to check for traceability information ?

In the “About” display you can find information regarding serial number, product
information and Schleifenbauer order number.
●ID = unique hardware address of this device’s controller
●SN = serial number (also found on the PDU housing)
●Prt = product identification (also found on the PDU housing)
●Ord = order number for internal Schleifenbauer uses
●Ph = number of phases of this device
●O = total number of outlets on this device
●S = number of switchable outlets on this device.
●M = number of metered outlets on this device

 

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PART IIB - REMOTE OPERATING AND MONITORING: WEB
INTERFACE
INTRODUCTION
Connected devices
(ONLY IN BRIDGE MODE)
In the left pane (part of the screen) a list of connected devices in the databus is shown.
Also the databus management functions can be found in this section such as:
●Scan databus
●Initialise zero addresses to sequence
●Reset all alerts
Device information
After selecting a connected device, you see measurements/information and get access
to the remote operating functions, in the right pane.






Using the web interface means using capacity of the databus and slowing down the performance of other
interfaces. Therefore it is NOT advisable to open too many web interfaces in order to prevent “hammering”
the databus.


Classic PDUs don’t have a device type register. That is why some things do not work using SNMP:
- input subtotal reset per phase, not working -> try multiple times, reset is often delayed.
- outlet reboot, not working
- Power (W) and Power (VA), invalid value (0.0)

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