Contrel EMA11 User manual

EMA11
ELECTRICAL MULTIFUNCTION ANALYZER
User Manual
IM 135-U v. 4.1
EMA11 IM135-U v4.1.doc
E LECTRICAL M ULTIFUNCTION A NALIZER R ECORDER
S ELECT P. UP E NTER P. D OWN S ELECT
E LECTRICAL M ULTIFUNCTION A NALIZER R ECORDER

EMA11 - USER MANUAL
-2-
Information in this document is subject to change without notice and does not represent a commitment on the part of
Contrel Elettronica Srl.
This documentation is consigned to the customer to enable the correct and safe operation of the instrument; any
other use of documentation is strictly prohibited.
The information contained herein is the property of Contrel Elettronica Srl, and by law, no part of it may be
reproduced, transcribed, stored in any retrieval system, or translated into any language by means (even for internal
purposes by the customer) without the express written permission of Contrel Elettronica Srl.
In addition, no part of this manual may be transmitted in any form by any means, including photocopying and
recording, for any purposes, without the express written permission of Contrel Elettronica Srl.
In case of Copyright violation the customer is directly responsible.
TERMS OF WARRANTY
The warranty is valid for the period of twelve months after material receipt.
The warranty covers free repair or replacement of equipment parts, which are recognized as faulty due to
manufacturing defects.
Warranty does not cover those parts which results defective due to misuse or improper use, incorrect installation or
maintenance, operation by unauthorized personnel, damage during transportation, or which in any case do not show
manufacturing defects of the equipment.
Not included in the warranty terms are technical interventions regarding equipment installation to electrical systems.
The manufacturer declines any responsibility for eventual injury or damage to persons, animals or things as result of
failure to follow the instructions in the user manual or caused by improper use of equipment.
The expenses of transport as well as the relative risks of same both to and from the place of repair, will be the sole
responsibility of the user.
This warranty expires after the date of purchase and any assistance required after said date including spare parts,
labour, transport of personnel and material will be charged to the user following the tariffs in force for Technical
Assistance Service at the time of such requested service.
In any case the replacement of the equipment as well as the extension of warranty after such breakdown is excluded.

EMA11 - USER MANUAL
-3-
INDEX
1) MAIN INFORMATION________________________________________________________5
1.1) INTRODUCTION _________________________________________________________5
1.2) DESCRIPTION ___________________________________________________________5
1.3) CE CONFORMITY AND STANDARDS ________________________________________5
2) TECHNICAL FEATURES _____________________________________________________6
2.1) GENERAL SPECIFICATIONS_______________________________________________6
2.2) MEASURING METHOD AND ACCURACY_____________________________________8
2.3) PROGRAMMABLE PARAMETERS (SETUP SECTION) __________________________8
2.4) MEASURED VARIABLES __________________________________________________9
2.5) CALCULATED VARIABLES ________________________________________________9
2.6) MEASURING & CALCULATION FORMULAS _________________________________10
3) INSTRUMENT DESCRIPTION ________________________________________________12
4) INSTALLATION ___________________________________________________________13
4.1) SAFETY _______________________________________________________________13
4.2) OPERATOR SAFETY ____________________________________________________13
4.3) MOUNTING ____________________________________________________________14
5) INTERNAL BATTERY ______________________________________________________15
5.1) REPLACEMENT INTERNAL BATTERY ______________________________________15
6) CONNECTION ____________________________________________________________16
6.1) POWER SUPPLY________________________________________________________16
6.2) VOLTAGE INPUTS ______________________________________________________17
6.3) CURRENT INPUTS ______________________________________________________17
6.4) WIRING DIAGRAMS _____________________________________________________17
7) PLUG-IN MODULE INSERTION ______________________________________________19
7.1) INSERTION PROCEDURE ________________________________________________20
7.2) DISCONNECTION PROCEDURE ___________________________________________20
8) INPUT/ OUTPUT DEVICES __________________________________________________21
8.1) STANDARD DIGITAL INPUTS _____________________________________________21
8.2) STANDARD DIGITAL OUTPUTS ___________________________________________22
8.3) INPUT / OUTPUT OPTIONS (“PLUG IN” MODULE) ____________________________23
8.3.1) 6 DIGITAL INPUTS OPTION 6DI (“PLUG IN”)_______________________________23
8.3.2) 2 DIGITAL INPUTS + 2 DIGITAL OUTPUTS OPTION 2DI+2DO (“PLUG IN”) ______23

EMA11 - USER MANUAL
-4-
8.3.3) 4 STATIC DIGITAL OUTPUTS OPTION 4DO (“PLUG IN”)_____________________24
8.3.4) 4 RELAY DIGITAL OUTPUTS OPTION 4DO (“PLUG IN”) _____________________24
8.3.5) 2 ANALOG OUTPUTS OPTION 2AO (“PLUG IN”) ___________________________24
8.3.6) 4 ANALOG OUTPUTS OPTION 4AO (“PLUG IN”) ___________________________25
8.4) SERIAL OUTPUTS ______________________________________________________26
8.4.1) RS485 CONNECTION NOT SHIELDED ____________________________________26
8.4.2) RS485 CONNECTION SHIELDED ________________________________________27
8.4.3) RS232 CONNECTION __________________________________________________27
8.4.4) MODEM CONNECTION ________________________________________________28
8.4.5) OPTION RS485/RS232 COM2 (“PLUG-IN”) ________________________________29
9) USE_____________________________________________________________________30
9.1) FUNCTION KEYS _______________________________________________________30
10) REAL TIME VALUES _______________________________________________________30
10.1) VISUALIZATION TREE ___________________________________________________31
10.2) MEASURES VISUALIZATION______________________________________________32
10.3) STATUS AND INFORMATION PAGES ______________________________________40
11) SETUP __________________________________________________________________42
11.1) SETUP ITEMS __________________________________________________________42
11.2) MAIN MENU SETUP _____________________________________________________43
11.3) GENERAL _____________________________________________________________44
11.4) SERIAL COMM _________________________________________________________45
11.5) AVERAGE _____________________________________________________________45
11.6) ENERGY ______________________________________________________________46
11.7) STORAGE _____________________________________________________________48
11.8) DIGITAL OUTPUT _______________________________________________________50
11.9) DIGITAL INPUT _________________________________________________________51
11.10) ANALOG OUTPUT (OPTION) ______________________________________________53
11.11) RESET ________________________________________________________________54
11.12) EXIT SETUP____________________________________________________________54
12) LIST OF MEASURES _______________________________________________________54
13) PROBLEMS AND SOLUTIONS_______________________________________________56
14) EMA SERIAL COMMUNICATION PROTOCOL __________________________________57
15) Notes ___________________________________________________________________57

EMA11 - USER MANUAL
-5-
1) MAIN INFORMATION
1.1) INTRODUCTION
EMA11 was engineered and tested in compliance with IEC 348 class 1 standards for operating
voltages up to 600 Vac rms, considering the VDE 0110 group C isolation standards for operating
voltages up to 500 Vac rms.
The present manual contains all of the information warnings that must be followed up by the operator
to ensure a right use of the equipment and to maintain the safe operating conditions.
1.2) DESCRIPTION
The EMA11 is an instrument which has been designed to monitor, store and analyze all electrical
variable in a distribution line.
All the relevant data are displayed and, if desired, stored on internal RAM and transmitted to a remote
PC, via RS485 (standard) on which the compatible management software has been installed.
It is possible to monitor via digital outputs (2 dig. out. standard) alarms, sirens or strategically factory
loads.
EMA11 with optional harmonic analyzes can carry out network harmonic content analyzes with FFT
method up to the 31st harmonic, very useful to locate network disturbances.
The EMA can perform accurate deep and complete energy analyzes.
A fundamental feature of EMA11 is the easy way to integrate new additional options and the
upgrading of the firmware using serial port and flash technology.
All parameters are displayed on a graphic LCD display light-back with a resolution of 128x128 dots.
Displaying and programming mode are carried out by means of a 5 buttons keyboard.
1.3) CE CONFORMITY AND STANDARDS
The instrument was tested in compliance with EMC 89/336/EEC and complies with the following
standards:
EMISSIONS = EN 50081-2, 1992 - EN 55022-CLASS B CISPR 22
IMMUNITY = EN 50082-1, 1992 - EN 61000-6-2
SAFETY = EN 61010-2

EMA11 - USER MANUAL
-6-
2) TECHNICAL FEATURES
2.1) GENERAL SPECIFICATIONS
Power supply/Auxiliary voltage
85-265 V 50/60 Hz/dc.
20-60 V 50/60 Hz/dc (option).
Isolation voltage
3700 Vac rms x 1 minute.
Voltage input
3 inputs, range 10-600Vrms between phase-phase.
Over voltage up to 750 Vac permanent, beyond this value it is imperative to use voltage transformers.
Over voltage category: III (fixed installation)
Pollution degree: 2 (normally not conductive; temporary conductive for condensation)
Resistor input: >2 MΩ.
Burden 0.2 VA.
Current input
Model EMA11 Model EMA11-1A
3 isolated inputs (internal CT) range 10mA-5A rms 4mA-1A rms
Over current max 10A (100A for 1 second) 2A (10A for 1 second)
Burden 0.2 VA 0.04 VA
Consumption
4VA typical.
6VA max, full optional.
Serial output
RS485/RS232 (configurable on board), half duplex isolated, signals Tx/Rx, Gnd.
Programmable baud rate from 1.200 to 19.200 bps.
Communication protocol: standard ASCII and MODBUS-RTU.
Input signals
2 passive opt isolated inputs (1000 V), 12 - 24 Vdc (up to 8, using options).
Output signals
2 photomos outputs, 12-230 Vac-dc / 150mA max (up to 6, using options).
2, 0-20 or 4-20 mA analog outputs, galvanic insulation (option).
Memory data retention
RAM: 128 KB (useful 50KB); 1 Mbytes (all useful) option.
No volatile memory data using internal battery.
Data retention: 5 years (typical) at +25°C (77°F).
Stored variables: Average power, Min/max values, Harmonics (option), Samples.
Display interface
128x128 dot graphic LCD at high contrast (adjustable) and with LED backlit. Dimension 70x70mm.
Keyboard interface
5 functional keys for paging and programming.

EMA11 - USER MANUAL
-7-
Operating temperature
From -10°C (14°F) to +50°C (122°F).
Storage temperature
From -15°C (5°F) to +70°C (158°F).
Operating humidity
90% not condensing.
Protection standards
IP 52 front (EN60529) - IP65 with gasket (on request).
IP 20 screw and terminals.
Weight and dimension
0,430 kg app. (equipped with 2 digital outputs, 2 digital inputs, RS485 and RS232, Memory
128Kbytes), 144x144x66 mm.
144 66
126
134
144

EMA11 - USER MANUAL
-8-
2.2) MEASURING METHOD AND ACCURACY
Measuring range
30-500Hz.
Measuring method
64 sampling per period for V1 and I1, V2 and I2, V3 and I3.
Measuring interval 0,1 second.
Instrument accuracy
Model EMA11 Model EMA11-05
Voltage < 0.5 % < 0.25 %
Current < 0.5 % < 0.25 %
Power < 1 % < 0.5 %
Energy < 1 % < 0.5 %
Power Factor < 1 % < 0.5 %
Standard EN 61036 EN60687
Sampling frequency
45 Hz=2.280 or at 60 Hz = 3,88kHz
Zero self-regulation
Offset
0,1 second.
RTC - REAL TIME CLOCK
Accuracy: 5 PPM, standard CEI-EN 61038
2.3) PROGRAMMABLE PARAMETERS (SETUP SECTION)
VT and CT ratio.
Mode, insertion type (4 wires, 3 wires, Aron).
Integration time of Average parameters.
Sampling frequency.
Address or logical number of equipment.
Date and time.
Time-bands of power consumption in different periods.
Storage section (Min/max, Harmonics, average power and Sampling values).
All parameters concerning the input/output section (serial port, analog output, digital input and output).
Preset energy counters.

EMA11 - USER MANUAL
-9-
2.4) MEASURED VARIABLES
PHASE VOLTAGE (Rms) VL1-N - VL2-N - VL3-N
LINE CURRENT (Rms) IL1 - IL2 - IL3
FREQUENCY FL1 (Hz)
TEMPERATURE T(°C)
2.5) CALCULATED VARIABLES
LINE VOLTAGE (Rms) VL1-L2 - VL2-L3 - VL3-L1
THREE-PHASE SYSTEM VOLTAGE (Rms) V
THREE-PHASE SYSTEM CURRENT (Rms) I
AVERAGE THREE-PHASE SYSTEM CURRENT Iavg
MAXIMUM AVERAGE THREE-PHASE SYSTEM CURRENT Imaxavg
AVERAGE LINE CURRENT IL1avg-IL2avg-IL3avg
MAXIMUM AVERAGE LINE CURRENT IL1maxavg - IL2maxavg - IL3maxavg
NEUTRAL CURRENT IN
AVERAGE NEUTRAL CURRENT INavg
MAXIMUM AVERAGE NEUTRAL CURRENT INmaxavg
POWER FACTOR PFL1 - PFL2 - PFL3
THREE-PHASE SYSTEM POWER FACTOR PF
COSϕ COSϕL1, COSϕL2, COSϕL3
THREE-PHASE SYSTEM COSϕ COSϕ
APPARENT POWER S L1 - S L2 - S L3 (VA)
THREE-PHASE SYSTEM APPARENT POWER S (VA)
ACTIVE POWER P L1 - P L2 - P L3 (W)
THREE-PHASE SYSTEM ACTIVE POWER P (W)
REACTIVE POWER Q L1 - Q L2 - Q L3 (VAr)
THREE-PHASE SYSTEM REACTIVE POWER Q (VAr)
AVERAGE ACTIVE POWER PAVG (W)
AVERAGE REACTIVE POWER QAVG (VAr)
THREE-PHASE SYSTEM ACTIVE ENERGY Wh+
THREE-PHASE SYSTEM TRANSFERRED ACTIVE ENERGY Wh-
THREE-PHASE SYSTEM INDUCTIVE REACTIVE ENERGY VArh+
THREE-PHASE SYSTEM CAPACITIVE REACTIVE ENERGY VArh-
Total counters and time bands are available.
TOTAL HARMONIC DISTORTION - THD (%) CURRENT AND VOLTAGE
HARMONIC ANALYZES (Option)
Analyzes up to the 31st harmonic of both voltage and current for each phase.
VL1-N, VL2-N, VL3-N; IL1, IL2, IL3 (%)

EMA11 - USER MANUAL
-10-
2.6) MEASURING & CALCULATION FORMULAS
()
dt
WLi
WhLi
ALi
WLi
PF Li
QLi
WLi
WLi
Li
ILiN
VLiN
ALi
P
iLi∆k
vLiN k
QLi
P
iLik
vLiN k
WLi
P
iLiN k
ILi
P
vLiN k
VLiN
P
k
P
k
P
k
P
k
∫
∞
=
=
+
=
⋅=
∑−
⋅
=
∑⋅
=
=
=
=
=
=
=
∑
∑
0
EnergyActive
FactorPower
2
2
cosCos
PowerAppearent
PowerReactive
PowerActive
2
RMSCurrentLine
2
RMSVoltagePhase
1
1
1
1
ϕϕ

EMA11 - USER MANUAL
-11-
Harmonic analyzes:
Cooley - Tukey algorithm.
dt
Qh Φ Qh Φ
dt
Wh Φ Wh Φ
AL AL AL AΦ
QL QL QL QΦ
WL WL WL WΦ
IIL
IL L
IΦ
VVL
VL
L
VΦ
P
vLijk
VLij
dt
QLi
QhLi
P
k
∫
∞
=
∫
∞
=
++=
++=
++=
+
+
=
+
+
=
=
∫
∞
=
∑
=
033
EnergyReactive
0
33
EnergyActive
321
3
rentPhaseAppea-3
321
3
PowerReactivePhase-3
321
3
PowerActivePhase-3
3
32
1
3
CurrentSystemPhase-3
3
3223
12
3
VoltageLinePhase-3
2
VoltageLine
0
EnergyReactive
1
64N1-Nk0
N
πnk2
1N
0n
sinh(n)j
1N
0n N
πnk2
cosh(n)H(k)
=≤≤






∑
−
=
−
∑
−
=





=
for

EMA11 - USER MANUAL
-12-
3) INSTRUMENT DESCRIPTION
The front panel of the EMA11 is described on the following section:
1 DISPLAY
Back lighted graphic LCD 70x70mm, 128x128 dot, dot pitch 0.35mm x 0.35mm, dot size
0.32mmx0.32mm, high viewing direction 60°, positive and negative visualization at low reflection.
2 KEYBOARD
In the “Acquisition Mode” the "up" and "down" arrows allows to skip through the measuring page of the
instrument while in the “Setup Mode” all the buttons including "Enter" key allows to program the
instrument.
1
2

EMA11 - USER MANUAL
-13-
4) INSTALLATION
4.1) SAFETY
On receipt of the instrument and prior to installation, make sure it is intact and has not been damaged during
shipment.
Before installing, make sure the operating voltage and mains voltage are compatible.
The instrument power supply must not be earthed.
The instrument is equipped with a fuse on the power supply type: 5x20mm 315mA 250V Fast (i.e. Schurter FSF).
•Always disconnect the instrument from all power sources before opening it for maintenance and/or repairs.
•The instrument's capacitor may still be charged even after it has been disconnected from all power sources.
•Maintenance and/or repairs must only be carried out by qualified and authorized personnel.
•If in any doubt about the instrument's safety take it out of service and implement the necessary procedures to
prevent its inadvertent use.
•Instrument operation is no longer safe:
A) when the instrument shows clear signs of damage.
B) when the instrument does not work.
C) after long storage in extreme conditions.
D) after serious damage during shipment.
4.2) OPERATOR SAFETY
Carefully read the following pages before installing and using the purchased instrument.
Maintenance and/or repairs must only be carried out by qualified and authorized personnel.
To ensure proper and safe use of the instrument and its correct maintenance and/or repairs, authorized personnel
must follow normal safety procedures at all times.
SYMBOLS
READ CAREFULLY THE CONTAINED INSTRUCTIONS
!

EMA11 - USER MANUAL
-14-
4.3) MOUNTING
The unit needs to be installed on front panel of mains control/switchboards, wiring and connections
must be carried out following the EMC (Electro-Magnetic-Compatibility) procedures.
Plug in screw terminal blocks are used for appropriate wiring. There is a security locking on the current
inputs terminal block.
Suggested is to install the equipment on vibration free switchboards and with an environmental
temperature ranging between -10 °C and +50°C.
The panel cut-out of the unit is the following:
Following the picture below mentioned, insert the instrument from the front side of the switchboard;
from behind insert black support guide on the screw of the instrument, once the black support guide
fits on the screw and is pushed against the instrument and the internal panel, screw the nut until the
instrument is fixed on the panel.
There are n.4 support guides and n.4 nuts to mount the instrument.
138
R3
138
144
144

EMA11 - USER MANUAL
-15-
5) INTERNAL BATTERY
To avoid to lose the setup and all storing data, the instrument is equipped of an internal battery
(CR2450).
5.1) REPLACEMENT INTERNAL BATTERY
Only a qualified and authorized technical person can change the internal battery.
This operation will delete all storing data and it will restore the default setup with the exception of the
password and the code to enable the harmonics and time bands. Using the software NRG (or relative
serial commands) it’s possible to download all storing data to avoid to losing same.
The next figure shows where is located the battery inside the instrument.
Instruction to change the internal battery:
1) It’s necessary to cut off the power supply of instrument and to disconnect all inputs and all outputs.
2) Remove the seal from the rear door.
3) Open and remove the rear door.
4) It’s necessary to pay attention to presence of residual voltage inside the instrument. Extract the
battery circuit without touching any other component.
5) Change the battery. Put the positive pole in the upper direction.
6) Plug in the circuit with the new battery (in the upper directions) inside the instrument. The 4 pin
strip must meet with their relative support.
7) Mount the rear door again and close it. Restore all the connection and turn on the instrument.
8) In the Warnings page is possible to check the condition of battery (BATTERY OK).
L
N
Extractible Pin strip
Battery
Conctat Battery

EMA11 - USER MANUAL
-16-
6) CONNECTION
Connection Table
Connector Name Connector Name
1 TX/A (ser.output) 8 2 Digital Input (+)
2 RX/B (ser.output) 9 2 Digital Input (-)
3 COM (ser.output) 10
4 11 1 Digital Output (+)
5 12 1 Digital Output (-)
6 1 Digital Input (+) 13 2 Digital Output (+)
7 1 Digital Input (-) 14 2 Digital Output (-)
6.1) POWER SUPPLY
The instrument doesn’t work without power supply.
Before powering the instrument verify always to insert the right value (85-265 Vac/dc
standard; 20-60 Vac/dc OPTION).
The instrument is equipped with an internal protection fuse on the power supply, type 5x20mm
dimensions, 315mA 250V, Fast (i.e. Schurter FSF). If the instrument is off, with presence of power
supply, it’s necessary to verify the internal fuse.
In case of fuse replacement, disconnect the instrument from the power supply, current plus voltage
input and all input/output sections (digital input/output, analog output, RS485/RS232 serial port etc.),
then open the rear door and change the fuse that is near the power supply connector (in the low part
of instrument). Only a qualified and authorized technical person can change the fuse. Extract the
interrupted fuse using a screwdriver and with a plier insert the new fuse.
The instrument's power supply does not require any earth connection.
L1
L2
L3
L
N
S1
S1
S1
S2
S2
S2
L1
L2
L3
N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Aux2 (-)
!

EMA11 - USER MANUAL
-17-
6.2) VOLTAGE INPUTS
EMA11 can measure voltages up to a maximum 600 Vrms between phase-phase, further
that value it is imperative to use voltage transformer. When using voltage transformer,
make sure to respect the input and output polarities.
Use cables with maximum cross-section of 2.5mm2attach them to the voltage measurement screw
terminals.
Connect the instrument following up the wiring diagrams described on chapter 6.4).
EMA11 was developed and tested in accordance with IEC 348 class 1 standards for operating
voltages up to 600 Vac rms.
6.3) CURRENT INPUTS
Connect the instrument following up the wiring diagrams described on chapter 6.4).
WARNING: before connecting the current inputs to the terminals of the instrument are
advised that the maximum allowable current input must be and not exceed 5A.
WARNING: to prevent accidentally disconnection of the current input, EMA11 is equipped
with screw able current input, in order to avoid negligence, operator must first shutdown the
system and short circuit the secondary wiring of the current transformer, if used, and
unscrews the current input terminals.
6.4) WIRING DIAGRAMS
!
!
!
L1
L2
L3
N
LOAD
P1 P2
S1 S2
L1
L2
L3
+
+
+
-
-
-
L1
L2
L3
L1
L2
L3
N
LOAD
P1 P2
S1 S2
L1
L2
L3
+
+
+
-
-
-
L1
L2
L3
3 wires insertion, 2 current transformers (Aron)
3 wires insertion, 2 current transformers and 2 voltage transformers (Aron)

EMA11 - USER MANUAL
-18-
Single fase insertion, 1 current transformer
4 wires insertion, 3 current transformers and 2 voltage transformers
L1
L2
L3
N
LOAD
P1 P2
S1 S2
L1
L2
L3
+
+
+
-
-
-
N
L1
L2
L3
L1
L2
L3
N
+
LOAD
N
P1 P2
S1 S2
L1
L2
L3
+
+
-
-
-
L1
4 wires insertion, 3 current transformers and 3 voltage transformes
4 wires insertion, 3 current transformers
LOAD
L1
L2
L3
N
P1 P2
S1 S2
L1
L2
L3
+
+
+
-
-
-
N
L1
L2
L3
LOAD
L1
L2
L3
N
P1 P2
S1 S2
L1
L2
L3
+
+
+
-
-
-
N
L1
L2
L3

EMA11 - USER MANUAL
-19-
7) PLUG-IN MODULE INSERTION
See the following picture to insert the plug-in module:
It’s only possible to see the two slots, shown in the picture, when the rear door is removed. To remove
the rear door it’s necessary to act, in the zone indicated of the arrow, on the retention lever.
The first slot is used to insert the option board of the digital input, digital output, analog output and
serial port:
a) 6DI 6 digital inputs
b) 2DI+2DO 2 digital inputs + 2 digital outputs
c) 4DO 4 digital outputs
d) 2AO 2 analog outputs
e) 4AO 4 analog outputs
f) COM2 1 serial port
The second slot is used only for the option memory: MEM Ram (1Mbyte).
Warning: if you insert the option board in the wrong slot, you can damage the instrument.
Warning: the setup come back to the default setup when the option boards are inserted or
extracted.
L
N
1
2
!
!

EMA11 - USER MANUAL
-20-
7.1) INSERTION PROCEDURE
Only a qualified and authorized technical person can insert the plug-in module.
Follow this procedure to operate in the maximum security:
1) Cut off the power supply of instrument and disconnect all inputs and all outputs.
2) Remove the seal from the rear door.
3) Open and remove the rear door.
4) It’s necessary to proceed with a lot of accuracy, without touching other components, because
there are residual voltages.
5) Before starting the operation of insertion of the plug-in module in the slot number 1, it’s necessary
to remove the plug in terminals block.
6) If you must insert plug-in modules in both slots, it’s advisable, but not necessary, to insert before
the board on slot number 1 and after the module on slot number 2.
7) Insert with a lot of accuracy the module with an angle of 30° in the down direction respect the slot
of insertion and with upper position the component side (see the following picture).
8) Rotate the board in the upright direction until the two hooks hold the board, which should be at the
same level of the slot (see the following picture).
9) Close the instrument using the rear door with the hole, in which will enter the plug-in module of the
slot number 1. You can use a screwdriver to help you to centre the terminal block with the hole of
rear door. It’s not necessary to use the rear door with the hole for the memory board of the slot
number 2.
10) Replace all connections and turn on the instrument. Check in the relative page that the instrument
recognizes the board.
7.2) DISCONNECTION PROCEDURE
Only a qualified and authorized technical person can insert the plug-in module.
Follow this procedure to operate in the maximum security:
1) Cut off the power supply of instrument and disconnect all inputs and all outputs.
2) Remove the seal from the rear door.
3) Open and remove the rear door.
4) It’s necessary to proceed with a lot of accuracy, without touching other components, because
there are residual voltages.
5) Push slightly the two hooks, situated on sides, in the external direction using a screwdriver. The
module should be disconnected and inclined of 30° in the down direction.
6) Extract the plug-in module.
7) Close the instrument with the rear door.
SLOT 1
SLOT 2
OPTION BOARD
INSERTION POSITON
DEFINITIVE POSITION
ROTATION SENSE
OPTION BOARD
30°