frako PQA 1101 User manual

FRAKO Kondensatoren- und Anlagenbau GmbH
www.frako.com
OPERATING MANUAL
Power system monitoring
An instrument for the acquisition, analysis and monitoring of all key
electrical data in low voltage 3-phase systems from 115 V to 690 V
PQA 1101
Power Quality Analyzer

2 |
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
Contents
1 About this manual �������������������������������������������������������������������������������������4
1.1 Objective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Safekeeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Symbols used in this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety ���������������������������������������������������������������������������������������������������������6
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Instrument-specific dangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Management information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Relevant standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Technical data �������������������������������������������������������������������������������������������9
4 Instrument description ���������������������������������������������������������������������������13
4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Password protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Installation �����������������������������������������������������������������������������������������������15
5.1 Mounting at the desired location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.1 Preparing for installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.2 Scope of supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.3 Suitable location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.4 Mounting the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Electrical installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.1 Electrical installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.2 Completing the electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2.3 Specifications for the electrical connections . . . . . . . . . . . . . . . . . . . 19
5.2.4 Earth connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.5 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.6 Voltage measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2.7 Current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.8 Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.9 Connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.1 Preparations for start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.2 Initial start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 Description of the menu �������������������������������������������������������������������������26
6.1 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.2 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

| 3
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
6.2.1 System & PQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2.2 Alarms & Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.3.1 System parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.2 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.3 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.3.4 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.4 About PQA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.5 Factory default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.6 Service interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7 General operation �����������������������������������������������������������������������������������51
8 Cleaning and maintenance ��������������������������������������������������������������������52
8.1 Safety during cleaning and maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
9 Troubleshooting���������������������������������������������������������������������������������������53
10 Decommissioning and removal, storage and disposal �����������������������55
10.1 Decommissioning the PQA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10.2 PQA removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
11 Notes ��������������������������������������������������������������������������������������������������������57

4 | About this manual
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
1 About this manual
Throughout this operating manual the Power Quality Analyzer PQA will be referred to
simply as the PQA.
The most recent update of this manual can always be found on our website www.frako.com.
1.1 Objective
This operating manual has been prepared for persons who install, connect, commis-
sion and operate the PQA. The manual must be read through carefully and completely
before any work on or with the instrument is carried out. All actions taken must be in
accordance with this manual.
1.2 Safekeeping
This operating manual contains important instructions for operating the PQA safely,
correctly and cost-effectively. It is to be considered part of the instrument itself and
must be held in a secure place where it can be referred to at all times.
1.3 Symbols used in this manual
Special instructions in this operating manual are marked by symbols and separated
from the other text by horizontal lines.
Warning signs
In order to avoid accidents, death or injury and damage to assets, these instructions
must always be followed. The warning signs consist of the appropriate signal word
– DANGER, WARNING, CAUTION or ATTENTION – plus a yellow symbol on the left-
hand side, as shown below:
WARNING!
Type of danger!
Description of the danger and possible consequences
–Measures to avoid the danger

About this manual | 5
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
The symbols and signal words classify the severity of the danger:
Symbol Signal word Meaning
DANGER This signal word indicates a hazard with a high level of risk that if
not avoided can result in death or serious injury.
WARNING This signal word indicates a hazard with an intermediate level of
risk that if not avoided can result in death or serious injury.
CAUTION This signal word indicates a hazard with a low level of risk that if
not avoided can result in slight or moderate injury.
ATTENTION Damage to equipment could occur if this sign is not heeded.
Notes
Notes supplement the general text with additional information on the correct func-
tioning and fault-free operation of the PQA. They are marked with the white-on-blue
symbol on the left-hand side, as shown below:
Note
Example of a note
1.4 Reference documents
For further information relevant to this manual please refer to the following documents:
– Modbus Specification
– REST Application Note

6 | Safety
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
2 Safety
2.1 Intended use
Within the scope of the technical data (see Section 3, Technical data), the Power
Quality Analyzer PQA is intended for the measurement and analysis of the secondary
electrical distribution system supplying the user. Any use of the instrument that devia-
tes from its intended use must be expressly approved by the manufacturer.
2.2 Instrument-specific dangers
The PQA has been manufactured using state-of-the-art technology. Nevertheless, not
all potential dangers can be excluded.
Failure to observe the safety instructions can result in death, serious injury or severe
damage to equipment and other assets.
Danger from electricity
The PQA operates at the supply voltage. Touching live components at the instrument
terminals and connecting cables can cause serious injury or may even be life-threat-
ening.
– Installation, commissioning and decommissioning of the PQA may only be carried
out by appropriately qualified technicians who are also familiar with and under-
stand the contents of this manual.
– When the PQA is being installed or serviced, the instrument and the electrical
system must be isolated from the power supply.
– The isolated electrical system must be locked out and tagged out to prevent its
being inadvertently switched on again.
– It must be verified that none of the terminals are live.
– All live components in the vicinity must be covered to prevent inadvertent contact.
– Current transformer circuits must be short-circuited before they are interrupted.
– Only approved installation cables must be used.
– The PQA must only be employed on duties up to the specified maximum power.
Overloading the instrument can result in its destruction, create a fire hazard or
cause an electrical accident. The load ratings for the various connections must
not be exceeded.
– Do not open the PQA.
– When the PQA is in operation, the USB port must not be touched.

Safety | 7
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
Danger from heat
The instrument terminals can become hot during operation.
– After the PQA has been operating, sufficient time must be allowed for the PQA
and its terminals to cool down before work is carried out on the connections.
2.3 Management information
Personnel qualifications
The following qualifications are required for personnel working with the PQA:
– Installing, commissioning, troubleshooting (installation):
electricians
– Operation, troubleshooting (faulty configuration):
persons who have read and understood the operating manual.
– Troubleshooting (instrument faults):
FRAKO Service + Support
User responsibility
In commercial operations in Germany, it is essential to comply with the regulations
of the Social Accident Insurance Institution covering electrical installations. In other
countries, the equivalent local regulations must be followed.
The safety of the system in which the PQA is incorporated is the responsibility of the
persons installing and operating the system.
For safety reasons and to retain conformity with product approval requirements
(CE marking), the user is not permitted to convert or otherwise modify the PQA.
The user must ensure that all operators are familiarized with this operating manual
and follow it at all times.
2.4 Disclaimer
No claims under guarantee shall be valid in the event of damages caused by failure
to observe the instructions in this operating manual. We shall not be held liable for
consequential damages!
Incorrect operation or failure to observe the safety instructions will invalidate all claims
under the guarantee, and no liability is accepted for any injuries to persons or dam-
ages to assets arising therefrom or occasioned thereby!

8 | Safety
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
2.5 Relevant standards
Installation and commissioning of the instrument in industrial plant must be carried out
in strict compliance with the following standards:
– EN 61508-1:2011-02; VDE 0803-1:2011-02
For this product all other currently valid laws, standards, regulations and safety rules
(IEC, EN, VDE, etc.) relating to the protection of persons and property must be strictly
complied with. In Germany, it is essential to comply with the Equipment Safety Act
(GSG) and the regulations of the German Social Accident Insurance Institutions. In
other countries, the equivalent local regulations must be followed.
2.6 Repair
Should repair work be necessary, the customer or user must contact the manufacturer
of the PQA: FRAKO Kondensatoren und Anlagenbau GmbH, Tscheulinstrasse 21A,
D-79331 Teningen, Germany, www.frako.com.

Technical data | 9
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
3 Technical data
Power supply:
Supply voltage 85–267 V AC (absolute limits), frequency 45–65 Hz,
or 100–377 V DC (absolute limits)
Power draw maximum 5VA
Overcurrent
protection External, maximum 2 A (time delay) specified
Inputs:
Voltage path
measurement
inputs
80 V AC – maximum 760 V AC (phase–phase, absolute limits), suitable
for 115–690 V AC systems, electrically interconnected via high resist-
ances, measurement of medium voltages possible using an x/100 V
transformer;
In areas where UL / CSA standards apply in systems with nominal
voltages 115–600 V AC; power failure detection after duration of a
half-wave
Current path
measurement
inputs
x/5 A AC or x/1 A AC (transformer secondary current ≥ 15 mA),
electrically isolated, power draw maximum 1 VA per transformer
connection, continuous overload rating up to 6 A AC,
transient overload maximum 10 A AC for 10 seconds
Temperature
inputs
Two PT100 RTDs, 4-wire or 2-wire
configuration, measurement range
Tariff switching (T) S0 pulse as per DIN 43864, common earth with FRAKO Starkstrombus
(Frakobus)
Interfaces:
Type -2x -3x -4x
Modbus
RTU interface
120 Ω terminating
resistor required at the
end of the bus system
Ethernet interface
(Modbus TCP, web
server)
100 Mbit/s
Ethernet standard
100BASE-T
FRAKO
Starkstrombus
(Frakobus)
RS-485, surge imped-
ance 120 Ω, for
connection to the
FRAKO Energy
Management System

10 | Technical data
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
Outputs:
Alarm contact1
Volt-free NO contact
AC-14 250 V AC, maximum 3 A or DC-13 30 V DC, maximum 3 A,
mechanical service life: 2 x 107cycles,
electrical service life AC-14 at 3 A: 1.5 x 105cycles,
AC-14 at 0.5 A: 2 x 106cycles
Note: utilization category AC-/DC- as per IEC 60947-5-1
In areas where UL / CSA standards apply: 3 A 250 V AC
cos φ=1 at 85 °C,
3 A 30 V DC L/R = 0 ms at 85 °C
Output relays
NO contact with common pole P; AC-14 250 V AC, maximum 3 A
or DC-13 30 V DC, maximum 3 A, mechanical service life
2 x 107cycles, electrical service life AC-14 at 3 A: 1 x 105cycles,
AC-14 at 0.5 A: 2 x 106cycles
Common supply conductor P to the output relays maximum 10 A;
Note: utilization category AC-14/DC-13 as per IEC 60947-5-1;
for all PQA types in areas where UL / CSA standards apply:
3 A 250 V AC cos φ= 1 at 85 °C, 3 A 30 V DC L/R = 0 ms at 85 °C
Connections: Via pluggable screw terminals
Instrument power
AUX,
Insulation rating
Conductor cross section max. 2.5 mm2, min. 0.2 mm2
min. 250V AC, 70°C
Protective earth
PE
Via 6.3 mm female slide connector; conductor cross section at least
equal to the largest conductor cross section of the AUX phases, the
voltage measurement connections, the output relays and the alarm
connections; insulation colour yellow / green
Voltage
measurement
inputs L1, L2, L3, N
Conductor cross section max. 2.5 mm2, min. 0.2 mm2
Insulation rating: Example 1: for 230 V AC, select at least 250 V AC,
70°C, Example 2: for 690 V AC, select at least 750 V AC, 70 °C
Current measurement
inputs L1, L2, L3,
terminals S1 and S2
in each case
Conductor cross section max. 2.5 mm², min. 0.2 mm²
Insulation rating: min. 250V AC, 70°C
Output relays
(control outputs)
Conductor cross section max. 2.5 mm², min. 0.2 mm2
250V relay, insulation rating: min. 250VAC, 70 °C
Alarm contact Conductor cross section max. 2.5 mm², min. 0.2 mm²
Insulation rating: min. 250 V AC, 70 °C
USB for updates
(service interface)
USB Micro A and Micro B ports
1 The output relays of the PQA 1101 with firmware version 1.0 cannot be used.

Technical data | 11
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
Type -2x -3x
Modbus RTU
interface
Conductor cross section max.
1.5 mm², min. 0.14 mm²
Insulation rating: 50 V DC, 70 °C
Ethernet interface
Ethernet cable Cat 5 as per
TIA-568A/B, S/FTP shielding
S/FTP, RJ45 plug
Temperature
inputs
Conductor cross section max. 1.5 mm², min. 0.14 mm²
Insulation rating: min. 50 V DC, 70 °C
FRAKO Starkstrom-
bus (Frakobus)
Conductor cross section max. 1.5 mm², min. 0.14 mm²
Insulation rating: min. 50 V DC, 70 °C
Input for tariff
switching
Conductor cross section max. 1.5 mm², min. 0.14 mm²
Insulation rating: min. 50 V DC, 70 °C
Note
0.14 mm² = AWG 26; 0.2 mm² ≈ AWG 25;
1.4 mm² ≈ AWG 16; 2.5 mm² = AWG 14
Design data:
Dimensions
(W x H x D)
144 mm × 144 mm × 70 mm casing
144 mm × 165 mm × 70 mm casing including connectors
Mounting
Front of panel in 138 mm x 138 mm cutout to IEC 61554,
held by four retaining lugs at the corners of the casing
Maximum screw tightening torque 0.4 Nm
Weight approx. 770 g without packaging
Ingress protection
Front of instrument when mounted in cabinet IP40, when mounted in
cabinet with upgrade kit (Article No. 20-50015) IP54; rear of instrument
and terminals IP20; all as per EN 60529; Contamination level 2
as per EN 61010-1:2011-07
Electrical design
Casing protection class I as per EN 61140
Working voltage up to max. 760 V AC absolute value
at voltage measurement inputs.
TNV1 circuits, some of which interconnected:
digital inputs and outputs, optional temperature inputs,
optional Modbus interface.
Casing design Flammability rating UL 94 V-0 according to casing manufacturer
Impact resistance IK06 as per EN 61010-1:2011-07, 8.2.2
Service life At +25 °C ambient temperature 15 years

12 | Technical data
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
EMC
EMC as per EN 61326-1
EN 61000-4-2, electrostatic discharge: air 8 kV and contact 6 kV with
horizontal and vertical coupling plane
EN 61000-4-3, radiated immunity (EMS) 80 MHz – 1 GHz, horizontal and
vertical, level 10 V/m = industrial environment radiation, Class A
EN 55022A EMI 30 MHz – 1 GHz = office and residential area, Class B
EN 61000-4-6, immunity to conducted disturbances, level 10 V RMS,
150 kHz – 80 MHz1
EN 61000-4-4, burst immunity, 1 kV capacitive coupling, 2 kV injection
into power supply cable and voltage measurement inputs
Ambient conditions:
Temperature range -25 °C to +65 °C, noncondensing
Installation altitude Maximum height above sea level 2000 m
Measuring system:
Accuracy Voltage and current measurement ±1% at 50/60 Hz and 25 °C
ambient temperature
Averaging function Over 1 second, updated every 100 ms
Harmonics Measured via Lx–N
All even and uneven harmonics up to the 19th
1The standard radio-frequency field test as per EN 61000-4-6 (EMC immunity) calls for amplitude
modulation at a modulation frequency of 1 kHz. However, this frequency lies within the measure-
ment range of the instrument in its intended use (20th harmonic of 50 Hz = 1 kHz). It is therefore to
be expected that the measuring circuit clearly responds to the standard test. For this reason, the
radio-frequency field test can only be carried out without amplitude modulation.

Instrument description | 13
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
4 Instrument description
4.1 Function
The Power Quality Analyzer PQA is used to measure, analyse and monitor the relevant
electrical variables in the power supply system. It stores these data temporarily before
forwarding them for processing elsewhere. In addition, the PQA can be connected to
two temperature probes and to a tariff switching system. Its contact can give an alarm
signal when variables move outside set limits.
The PQA 1101 has been designed to integrate into the FRAKO Energy Management
System, where it can exhibit its full potential. An integral bus interface enables con-
nection to the FRAKO Starkstrombus or a Modbus RTU/TCP bus.
4.2 Operation
instrument is operated with the five keys located below the display:
Key
Function PQA
Overview Select Select Start
submenu
Display
information
Note
The keys are assigned different functions depending on the menu item.
Each section describes these specific key functions.
Icon Key Function
Escape Go back one level in the system tree.
Up Increase a selected parameter by an increment.
Move upwards to select the next item
Down Decrease a selected parameter by an increment.
Move downwards to select the next item
Return/
Enter
Go one level deeper in the system tree (e.g. Select a chosen
parameter).
Select and confirm a chosen parameter (e.g. Adopt a value).
Info Help text

14 | Instrument description
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
The PQA offers the following languages, which can be selected at Main menu >
Configuration > Service > Commissioning (see Section 5.3.2, Initial start-up):
– German
– English
– French
4.3 Password protection
The PQA is protected by a password to prevent unauthorized access to sensitive
menu items.
Protected menu items:
– Main menu > Configuration
Security level 1, Password: the last four numerals of the serial number. Refer to the
label on the PQA or Section 6.4, About PQA.
– Main menu > Configuration > Service > Service
Security level 2, Password: 3725
The password prompt is displayed immediately when-
ever a protected menu item is selected.
The and keys are used to change a numeral,
which is then confirmed when the key is pressed.
Once the 4th numeral has been confirmed, the menus
with the corresponding security level are enabled for one hour.

Installation | 15
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
5 Installation
The PQA is installed in three steps:
– Mounting at the desired location (see Section 5.1.1, Preparing for installation and
Section 5.1.4, Mounting the instrument)
– Electrical connections (see Section 5.2.1, Electrical installation procedure and
Section 5.2.2, Completing the electrical installation)
– Commissioning (see Section 5.3.1, Preparations for start-up)
The steps must always be taken in this order.
5.1 Mounting at the desired location
5.1.1 Preparing for installation
1.Verify that the set is complete (see Section 5.1.2, Scope of supply).
2.Inspect the instrument for any external damage. If any damage is apparent, for
safety reasons it must not be put into service. In case of doubt, please contact
FRAKO Service.
3.Verify that the intended location of the PQA is suitable (see Section 5.1.3, Suitable
location).
5.1.2 Scope of supply
The PQA and its accessories consist of:
– 1 PQA instrument
– 4 or more reverse-polarity-proof male connectors, supplied loose
– 1 operating manual
5.1.3 Suitable location
The location where the PQA is installed must comply with the following conditions (see
also Section 2.1, Intended use and Section 3, Technical data):
– Only install the PQA in areas where there is no danger of gas or dust explosions.
– Do not expose the PQA to direct sunlight or high temperatures, and do not install
the instrument near to devices that generate heat.
– The PQA must be mounted in an adequately ventilated area. Its rear and sidewalls
must not be covered.

16 | Installation
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
– Do not expose the instrument to rain, water, dampness or high levels of humidity.
Avoid direct contact with water at all cost.
– Protect the PQA against jolting and physical blows.
The instrument is installed vertically on the outside of the control cabinet or enclosure
so that the controls and display are accessible to the operator.
When considered from the rear, the PQA is a panel-mounted instrument with IP20 ingress
protection. Adequate protection against inadvertently touching live components must
be provided, and the ingress of dust and water must be prevented by ensuring that the
instrument is installed in a suitable enclosure (e.g. control cabinet or distribution panel).
5.1.4 Mounting the instrument
The PQA is designed for mounting in a 138 mm x 138 mm cutout to IEC 61554 in
the front of a control cabinet. It is held in place by four retaining lugs in the corners of
the instrument.
Note
The option is given of mounting the PQA in control cabinets with IP54
ingress protection. For this an additional gasket (Article No. 20-50015) is
available that seals the gap between the PQA front panel and the wall of
the control cabinet.

Installation | 17
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
WARNING!
Danger from electricity!
Touching live components at the instrument terminals and connecting
cables can cause serious injury or may even be life-threatening.
–
Installation, commissioning, decommissioning and removal of the PQA
may only be carried out by appropriately qualified personnel who have
read and understood the content of this manual.
–
When the PQA is being fitted and connected, the instrument and the
electrical system must be isolated from the power supply.
–The isolated electrical system must be locked out and tagged out to pre-
vent its being inadvertently switched on again.
–It must be verified that none of the terminals are live.
–All live components in the vicinity must be covered to prevent inadvertent
contact.
1.Turn the four retaining screws at the front of the PQA anticlockwise so that the
four retaining lugs in the corners of the instrument are swivelled to lie flat behind
its front panel.
2.Option: In the case of a cabinet with IP54 ingress protection, fit the gasket from
the accessories set in the rear groove behind the PQA front panel.
3.Insert the sheet-metal rear of the PQA through the cutout provided in the control
cabinet until fully home.
4.Press the PQA front panel gently against the control cabinet exterior and tighten the
four retaining screws at the corners by turning them clockwise, applying a torque of
≤ 0.4 Nm. This causes the retaining lugs to swivel outwards and be drawn towards
the inner side of the cabinet wall until they are held tightly up against it.
5.2 Electrical installation
5.2.1 Electrical installation procedure
WARNING!
Danger from electricity!
Touching live components at the instrument terminals and connecting
cables can cause serious injury or may even be life-threatening.
–
Installation, commissioning, decommissioning and removal of the PQA
may only be carried out by appropriately qualified personnel who have
read and understood the content of this manual.
–
When the PQA is being fitted and connected, the instrument and the
electrical system must be isolated from the power supply.

18 | Installation
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
– The isolated electrical system must be locked out and tagged out to
prevent its being inadvertently switched on again.
–It must be verified that none of the terminals are live.
–
All live components in the vicinity must be covered to prevent inadvertent
contact.
CAUTION!
Danger from heat
The instrument terminals can become hot during operation and could
cause burns.
–After the PQA has been operating, sufficient time must be allowed for the
instrument and its terminals to cool down before work is carried out on
the connections.
The PQA is connected as shown in the diagrams in Section 5.2.9, Connection dia-
grams and as specified in Section 5.2.3, Specifications for the electrical connections:
1.Connect the earth (see Section 5.2.4, Earth connection).
2.An external disconnecting device with a fuse must be fitted in the power supply
line to the PQA (see Section 5.2.5, Power supply).
3. Connect the voltage measurement cabling (see Section 5.2.6, Voltage measurement).
4. Connect the current measurement cabling (see Section 5.2.7, Current measurement).
5.If required, connect the alarm relay to transmit an alarm signal
(see Section 5.2.8, Alarm).
5.2.2 Completing the electrical installation
WARNING!
Danger from electricity!
If there is a fault in the wiring adjacent to the PQA, there is a danger that
its four retaining screws could become live and therefore a safety haz-
ard. Touching live components at the instrument terminals and connecting
cables can cause serious injury or may even be life-threatening.
–
Securely fasten the cabling at the location where the PQA is mounted
(e.g. control panel, cabinet).
At the location where the PQA is installed (e.g. control cabinet, enclosure), verify that
all wires and cables are securely fastened or grouped in harnesses to ensure that any
stray wire or strand cannot contact one or more of the instrument’s retaining screws.

Installation | 19
FRAKO | Operating Manual | Power Quality Analyzer 1101 – PQA
5.2.3 Specifications for the electrical connections
– Only approved solid core or stranded wire cables having an adequate cross sec-
tion and sufficiently high voltage withstand ratings must be used for the connect-
ing cabling.
– If flexible stranded cables are used for the PQA connections, short ferrules 6 mm
in length must be crimped onto their ends.
– Suitable clips or other fasteners must be fitted to relieve any strain on the wires
and cables connected to the PQA.
– No additional connectors must be fitted in the wires and cables connected to the PQA.
– All the connectors supplied with the PQA must be plugged in, even when it is
not intended to use them, and be secured to the instrument with their retaining
screws, if provided.
5.2.4 Earth connection
An earthing tab is provided for the PE connection in the rear wall of the
casing. It is marked with the earthing symbol as per EN 60617-2 shown
at left.
The earth connection must comply with the following stipulations:
– The PE conductor cross section must be at least equal to that of the largest
conductor of the AUX phases, the voltage measurement connections, the relay
outputs or the alarm connection,
– its insulation colour is yellow/green,
– earthing connections for system power circuits must have at least the same
current-carrying capacity rating as the circuits themselves.
If the earthing tab has broken off, the PQA must not be started up. The instrument
must either be repaired or replaced.
Note
The PQA may only be put into service if the earthing conductor is
connected to it.
5.2.5 Power supply
External disconnector
An external disconnecting device, such as an isolator or circuit breaker, must be
fitted in the power supply line to the PQA. This must be located in the vicinity of the
instrument and must be able to isolate all cables connected to the AUX terminals of
the PQA. This device must not disconnect the earthing conductor.

20 | Installation
Power Quality Analyzer 1101 – PQA | Operating Manual | FRAKO
Fuses
The instrument power supply circuit AUX must be protected externally by one or two
2 A time delay 250 V AC fuses.
One such fuse is required in the phase line when the power is from a phase–neutral
connection, but two fuses must be installed, one in each phase, if a phase–phase
connection is used. Please refer to the diagrams in Section 5.2.9, Connection dia-
grams, for further information.
Note
If a phase–phase connection is used, the maximum permissible voltage
must be taken into account. If the phase–phase voltage is too high, an
appropriate instrument transformer must be installed.
5.2.6 Voltage measurement
Depending on the instrument type, the PQA can measure one, two or three AC volt-
ages. The voltage measurement inputs are electrically interconnected via high resist-
ances. See Section 3, Technical data, for the measurement ranges. DC voltages
cannot be measured.
The PQA voltage measurement inputs are designed for 100–690 V AC systems.
It is possible to measure medium voltages using an x/100 V transformer.
It is not necessary to provide external overcurrent protection in the voltage measure-
ment circuits since these are safety impedance-protected. In this case, a short-cir-
cuit-proof cable (double insulated stranded wire) must be used to connect the voltage
measurement inputs.
For 3-phase measurement, the terminals L1, L2, L3 and Nare connected as shown
in the connection diagrams in Section 5.2.9, Connection diagrams. Phases L1, L2
and L3 must be connected in correct phase sequence.
For 3-phase measurement, it is advisable to connect the Nterminal as well. This
enables the high measurement accuracy of the PQA to be achieved when measuring
phase–neutral voltages and the variables derived from these. If no neutral conductor is
present, the Nterminal can be left unconnected. However, this is only advisable when
the phases are symmetrically loaded.
Note
If an instrument type designed for 3-phase measuring is used to measure
only one phase, the terminals L1 and Nmust be used. The terminals L2
und L3 must then be commoned with the terminal Nto prevent incorrect
measurements being made.