ABB IM300-I Quick start guide

IM300
Operational Manual

TABLE OF CONTENTS
1. INTRODUCTIONS..................................................................................................1
1.1. FUNCTION SPECIFICATION.................................................................................... 1
1.2. FEATURES............................................................................................................. 1
2. THE INSTALLATION, WIRING AND CONFIGURATION.............................3
2.1. DIMENSIONS AND INSTALLATION......................................................................... 3
2.2. WIRING AND CONFIGURATION............................................................................. 6
3. OPERATING INSTRUCTIONS...........................................................................11
3.1. BUTTON OPERATION........................................................................................... 12
3.2. DATA READ（NON SOE）................................................................................. 13
3.3. PARAMETER SETTINGS........................................................................................33
3.4. LOCAL OPERATION.............................................................................................49
3.5. SOE AND STATISTIC INQUIRY.............................................................................53
4.1. MODBUS PROTOCOL OVERVIEW........................................................................61
4.1.1 THE TRANSMISSION FORMAT............................................................................ 61
4.1.2 THE FRAME FORMAT........................................................................................ 62
4.2. COMMUNICATION PROTOCOL ADDRESS TABLE AND DESCRIPTION..................... 64
4.3. EXPLANATION OF REGISTER ADDRESS................................................................90
4.4. SOE COMMUNICATION FORMAT DESCRIPTION..................................................97
5. TRANSPORTATION AND STORAGE............................................................. 100
APPENDIX............................................................................................................... 101
A. THE DEFAULT VALUE.......................................................................................... 101
B. TECHNICAL INDICATORS..................................................................................... 103
C. ORDER INSTRUCTIONS.........................................................................................105

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1. Introductions
1.1. Function Specification
IM300 is an intelligent multipurpose power parameter monitoring and control
device which has an extensive range of applications in 6~35kV or 0.4kV power
systems. It has the data acquisition, control and statistical functions, such as electrical
parameters measurement, calculation and statistics, fault records, 2 ~ 31st
harmonics monitoring function, 4-ch digital inputs and 2-ch relay outputs, 1-ch
4~20mA DC transmission output, over-limit alarm and other functions. IM300 is
equipped with RS485 communications and MODBUS-RTU protocol for integration
into any power monitoring and control system. The appearance is shown in fig 1.1.1.
Fig 1.1.1 The appearance of IM300
1.2. Features
1.2.1.IM300 functions
Applied in 3-phase 3-wire system and 3-phase 4-wire system . It can measure
and calculate 3-phase voltage, 3-phase current, Zero-sequence current, active
power, reactive power, apparent power, power factor, system frequency, active
energy and reactive energy.
Harmonic distortion ratio of voltage and current.( Including total harmonic
distortion ratio THD, odd harmonic distortion ratio , even harmonic distortion
ratio), 2~31st harmonic occupancy of voltage, 2~31st harmonic occupancy of
current, the RMS of voltage and current base wave, etc.
2-ch relay control outputs.

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4-ch digital inputs, up to 32 SOE (the Sequence of Events) of digital inputs
can be recorded.
1-ch 4 ~ 20mA DC transmission output which can be associated with any
voltage, current, power.
forward/reverse total active energy, reactive energy in four quadrants.
Multi-rate energy statistics (4 rates, 48 time-periods) of the forward/reverse
total active energy, reactive energy in four quadrants.
The value and occurrence time of the maximum forward/reverse active and
reactive power demand. The maximum/minimum value and occurrence time of
the voltage, current, frequency, power factor, active power, reactive power,
apparent power.
Unbalanced degree of three-phase voltage and current.
The over limit alarm function, such as over-current, zero-current, grounding,
low-voltage, over-voltage, low-frequency, over- frequency, low-power factor, can
be associated with relay outputs.
Checking and modifying the various electrical parameters, running status and
controlling the relays locally.
Communication protocol is MODBUS-RTU.
The clock can be set manually.
Note: The above functions are selected according to the specific models of the
meter (see appendix C).
1.2.2.High safety and reliability
IM300 can run steadily in the complex power system.
Electrostatic discharge immunity test : level 3
Electric fast transient immunity test : level 3
The surge immunity test : level 3
Frequency magnetic field immunity test : level 3
Oscillation wave immunity test : level 3
The IP level of panel: IP50, the IP level of shell: IP20
1.2.3.Easy installation
IM300 dimensions conform DIN96 × 96 standard. It can be mounted on the

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cabinet panel easily.
1.2.4.The wiring of system
3-phase 4-wire 3CT (3P4W 3CT)
3-phase 4-wire 1CT (3P4W 1CT)
3-phase 3-wire 3CT (3P3W 3CT)
3-phase 3-wire 2CT (3P3W 2CT)
3-phase 3-wire 1CT (3P3W 1CT)
1.2.5.The human-machine interface
The LCD screen can display various of information with bright backlighting. It’s
very easy to operate IM300 by the human-machine interface.
1.2.6.Application field
Medium and low voltage distribution system, intelligent switch cabinet, load
control system, industrial automation, building automation and Energy management
system.
2. The installation, wiring and configuration
This chapter details the installation method, wiring and configuration of the
IM300. Please read carefully before installation.
2.1. Dimensions and installation
2.1.1. Dimensions of mechanical devices
Front view Side View

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Fig 2.1.1. Device size fig. (Unit: mm)
2.1.2. Installation
The IM300 should be mounted on the switch gear panel.
Panel opening dimensions shown in fig. 2-1-2-1:
Fig 2.1.2.1 Slots on the panel (unit: mm) Fig 2.1.2.2 Card is removed
Taking into account the length of wire, the rear panel must be 100mm depth for
accommodating IM300. Actual installation, it normally takes the rear there is
some space (at least 130 × 130 × 100mm), ease of installation and wiring.
Take off the installation card on both sides of the device., as shown in fig. 2.1.2.2,
with the thumb and forefinger of one hand the fixed head gently lift (lift force is
not too large, otherwise it may cause the fixed head fracture), the thumb of the
other hand in the direction of the arrow shown in FIG by pushing the catches can
be removed. When installing the device on the front panel push into the mounting
hole, then from the trench along the rear of the device will be installed on clip. As
shown in fig. 2.1.2.3, his hands were holding down the top and bottom sides of
the device, the top two in the thumb of the clip ends, even before the direction of
the arrow to push hard to make catches squeezing panel. After the installation of
two cards are installed, the device will be firmly fixed on the panel.

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Fig 2.1.2.3 Fixed on the panel by the mounting blocks
2.1.3. Safety Warnings
警告！只能由专业电工进行安装。
Warning! Installation by person with electrotechnicalexpertise only.
Warnung! Installation nur durch elektrotechnische Fachkraft.
Avvertenza! Fare installare solo da un elettricista qualificato.
Avertissement! Installation uniquement par des personnes qualifiées en
électrotechnique.
¡Advertencia! La instalacióndeberáserrealizadaúnicamentepor
electricistasespecializados.
www.abb.com/lowvoltage/directives
2.1.4. Installation Notes
Inside of the product is no user-adjustable components, do not open during
installation.
Installation with power on is not allowed..
Run should meet the ambient temperature -25 ℃~ + 70 ℃, humidity 0 to 95%,
atmospheric pressure 70kPa ~ 106kPa. Avoid placing the device into strong
source of interference, radiation, heat sources and dusty environment.

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2.2. Wiring and Configuration
2.2.1. Terminal Definition
IM300 back of a total of three sets of terminals, terminal diagram shown in fig.
2-2-1:
Fig 2.2.1. Terminals fig. (back view)
The definition of the terminals shown in table :
Power Supply
PE
1
I41
17
L
2
I42
18
N
3
Relay Outputs
RO1
19
Voltage Inputs
U1
4
RO1
2
20
U2
5
RO2
1
21
U3
6
RO2
2
22
Un
7
Analog Outputs
NC
23
Communication
SHIEL
D
8
AO+
24
RS+
9
AO-
25
RS-
1
0
NC
26
Current Inputs
I11
1
1
NC
27
I12
1
2
Digital Inputs
DI1
28
I21
1
3
DI2
29
I22
1
4
DI3
30
I31
1
5
DI4
31
I32
1
6
COM
32

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Note: ①IM300 device varies according to the specific models (see appendix C. Order
description). The corresponding terminals that do not have functions are empty (NC).
②In the 3-phase 4-wire system, the Un is connected to the voltage common end; In
3-phase 3-wire system, the Un is connected to B-phase voltage. DI means Digital
Input; RO means Relay Output;Transmitter output is self-powered, AO + is forward
current output , AO- is reverse current output.
2.2.2. Power supply wiring
Power supply range of IM300 is 85 ~ 265VAC or 85 ~ 265VDC, it
suggested a independent power supply wiring as shown in fig. 2-2-2.
1 2 3
2A fuse
Supply voltage
85～265VAC/DC
Earth
PE L N
Fig 2.2.2. Power wiring diagram
2.2.3. Electric wiring
3-phase 4-wire system: 3CT
Fig 2.2.3.1 3P4W+3CT
3-phase 4-wire system: 1CT

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4 5 76 11 12 4 5 6 7 11 12
N
C
B
A
N
C
B
A
Fig 2.2.3.2 3P4W+1CT
3-phase 3-wire system: 3CT
Fig2.2.3.3 3P3W+3CT
3-phase 3-wire system: 2CT
Fig 2.2.3.4 3P3W/3PT+2CT
3-phase 3-wire system: 1CT

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Fig 2.2.3.5 3P3W+1CT
2.2.4. Communication wiring
Straight-line Wiring Method:
Fig. 2-2-3-6 RS485 straight-line wiring method
Note: The straight-line wiring method should consider impedance matching
resistor is about 100 ~ 120Ω.
2.2.5. Digital input wiring
IM300 monitors the number of switches / digital inputs entered by 4 dry
nodes, the use of optical isolation input, isolation voltage 1500VDC, The 24VDC
isolated from the internal output of the device provides input circuit power for the
dry node. Wiring is shown in fig. 2-2-4.

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28 29 30 31 32
DI1 DI2 DI3 DI4 COM
24VDC
fig. 2-2-4 Digital inputs wiring diagram
2.2.6. Relay wiring
Control relay outputs node capacity 5A / 30VDC or 5A / 250VAC. When the
load current is greater than the above value should use intermediate relay. Wiring
as shown in fig. 2-2-5.
fig. 2-2-5 Relay wiring diagram.
IM300 provides "always maintain the output" and "pulse output" in two
relay output modes, see "Parameter Settings seventh screen" description.
2.2.7. DC 4 ~ 20mA analog outputs wiring
DC 4 ~ 20mA analog outputs is optically isolated output, maximum isolation
voltage 500VDC. Maximum load resistance RL 600Ω (including line resistance),
open-circuit voltage u is not greater than 24V, wiring is shown in fig. 2-2-6.

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AO+ AO- NC NC
24 25 26 27
RL
u
fig. 2-2-6 DC analog outputs wiring diagram
2.2.8. Wiring Precautions
The conductor cross section of the connecting wire to the device should meet the
following requirements: the cross section of current wires is not less than 2.5
mm2, the cross section of voltage wires is not less than 1.0 mm2.
Communication lines must be shielded twisted pair, communication line RS485 +,
RS485- can not be reversed.
The wires of power supply and voltage input must be connected with 2A fuse in
series..
To reduce the impact of current at startup, it is recommended each power cord
does not exceed 40 devices.
When the communication connection using the linear connection, respectively
access line should match 100 ~ 120Ω resistor is located between the beginning
and the ending of the communication cable at the RS485 + and RS485- terminals.
Baud rate is 9600bps, the cable length <1200 meters.
The maximum load of the analog outputs includes the line resistance. Be careful
when wiring.
3. Operating Instructions
This chapter details IM300 man-machine interface, including how to read the
data, set parameters, and local operations.
Note: IM300 means depending on each particular model (see Appendix C. ordering), does
not have a corresponding function corresponding to the interface does not display.

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3.1. Button operation
Fig 3.1.1 button
The operation of IM300 is divided into single button operate mode and
combination button operate mode.
The single button operate mode only use one of the four buttons to display all
the monitored data of the device:
Single button －Measurement data display: display voltage, current, power
factor, power, frequency and other data.
Single button －The harmonic data show that the harmonic distortion ratio, the
harmonic share, the voltage current and the voltage current are not equal.
Single button －Operating parameters: Display all operating parameters
information system.
Single button －Display accumulated value: Displays various energy
information.
Operation button combination:
combined with ：Output for local operations and other special functions.
combined with ：Used to modify local parameters.
combined with ：Queries the device memory SOE records, statistics,
demand.
combined with ：Inquire the time and the internal temperature
Combination mode entry and exit introduction:

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In the single button mode, press the combinatorial button at the same time and
then loosen, you can enter the corresponding combinatorial button function; use the
combinatorial button again you will go back to the single button display screen
(except the fourth button combination).
3.2. Data read（non SOE）
Display content
Explanation
Four rows of in the data display
field
Display measurement data, including: current, voltage, power,
power factor, frequency and so on. Second, display parameters,
SOE, time, local operations, etc.
The “a“, “b“, “c“ denotes a ,b and C-phase respectively;
“∑“denotes summation; “Avg” denotes average; “-” denotes
minus; “n” denotes zero-sequence
Three at the top left corner
Consists of English semantic abbreviations, used to indicate the
current interface meaning: such as voltage 'U', current 'I', etc.
Current load size indication.
The actual load current is relative to the percentage of rated load
current, from left to right, respectively, Ia/Ib/Ic.
Digital identifier: on
off
The switch volume identification indicates the state of input of
the corresponding switch in 1 ~ 4(on or off).
Load character identifier
Inductance identifier(upper) indicate inductive load
Capacitance identifier(below) indicate capacitive load
Communication status identifier
Display this identifier indicates the communication work in
normal
Does not display this identifier indicate the communication out of
work
More warning signs
Display this sign indicates that there is more alarm, no indication
that there is no more alarm.
Switch quantization SOE identification.
Display this sign indicates that there is a switch quantifier SOE
record in memory, which does not show that there is no switch
quantifier SOE record in memory.
10 little in data accumulated
display field
Display energy, temperature of the equipment and time.

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Units: kVA MkW
％Mkvar
MkVA Hz
kWh kvarh
The unit of measuring data:
Current: A, KA;
Voltage: V, KV;
Active power: W, KW, MW;
Reactive power: Var, KVar, MVar;
Apparent power: VA, KVA, MVA;
Frequency: Hz;
Percentage: %;
Active energy: KWh;
Reactive energy: Kvarh;
Total sharp peak shoulder off-peak
electricity demand
Electrical ruler type and demand tips
Table 3-1
3.2.1. Run the display of measurement data
In either a single bond display press button, the measurement data
display area will show the measured data. Time display area (bottom row small )
remains unchanged.
In the measurement data display mode, press button until the top left of
the screen display after the words 'UP', then press button to
scroll upward; press button until the top left of the screen
displays the word 'DWN', then scroll down to press button.
Screen 1: Display the phase voltage Ua, Ub, Uc and
UAvg (the average value of three phase voltages).
As shown in fig. 3.2.1: Ua = 221.1V; Ub = 221.1V;
Uc = 221.0V; UAvg = 221.1V.
Note: Only when the 3-phase 4-wire system wiring for the
displayed page, otherwise the page is not displayed.
Screen2 ：Display the phase current Ia, Ib, Ic and
IAvg(the average value of three phase currents).
As shown in fig. 3.2.2: Ia = 3.286A; Ib = 3.375A;
Ic = 3.066A; IAvg = 3.243A.
Fig 3.2.1. 3-phase voltage
Fig 3.2.2 3-phase current

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Fig 3.2.3 line voltage
Screen 3: Display the line voltage Uab，Ubc，Uca and Uavg (the
average value of line voltage).
The parameter value is shown in fig 3.2.3：
Uab=382.8V；Ubc=382.9V；
Uca=383.0V；UAvg=382.9V
Screen 4:Display the phase current Ia，Ib，Ic and In
( the zero-sequence current) .
The parameter value is shown in fig 3.2.4：
Ia=3.286A；Ib=3.375A；
Ic=3.066A；In=0.211A
Screen 5: when the connection mode is set as 3-phase
4-wire,
each phase power factor PFa, PFb, PFc and total power factor
PF displayed on the screen.
PF=0.988；PFa=0.987；
PFb=0.988；PFc=0.989
When the connection mode is set as 3-phase 3-wire, total power
factor PF displayed only.
PF=0.988
The symbol of power factor complies with IEC symbol
regulation
Fig 3.2.4 3-phase current and zero-sequence
Fig 3.2.5 Power factor

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Screen 6: Display the total active power P∑, total reactive
power Q∑, total apparent power S∑and frequency F
The parameter value is shown in fig 3.2.6:
P∑=0.717KW；Q∑=0.114Kvar；
S∑=0.726KVA；F=50.03Hz
Screen 7: Display A-phase active power Pa, A-phase
reactive power Qa, A-phase apparent power Sa and
frequency Fa.
The parameter value is shown in fig 3.2.7:
Pa＝0.239KW；Qa＝0.038Kvar；
Sa＝0.242KVA；Fa＝50.03Hz.
Note: This screen will be displayed when the connection
mode is set as 3-phase 4-wire.
Screen 8: Display B-phase active power Pb, B-phase
reactive power Qb, B-phase apparent power Sb, frequency Fb.
The parameter value is shown in fig 3.2.8:
Pb＝0.239KW；Qb＝0.038Kvar；
Sb＝0.242KVA；Fb＝50.03Hz.
Note: This screen will be displayed when the connection
mode is set as 3-phase 4-wire.
Screen 9: Display C-phase active power Pc, C-phase
reactive power Qc, C-phase apparent power Sc, frequency Fc.
The parameter value is shown in fig 3.2.9:
Pc＝0.239KW；Qc＝0.038Kvar；
Sc＝0.242KVA；Fc＝50.03Hz.
Note: This screen will be displayed when the connection
mode is set as 3-phase 4-wire.
Fig 3.2.8 Power parameter and
frequency of phase B
Fig 3.2.6 Total power parameter
and frequency
Fig 3.2.7 Power parameter and
frequency of phase A
Fig 3.2.9 Power parameter and
frequency of phase C

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3.2.2. Harmonic distortion ratio and harmonic components
In either a single bond display press button display
area harmonic distortion ratio, harmonic components,voltage
/current unbalanced degree and K-factor of current, etc.
In the harmonic content display mode, press button until the
top left of the screen display after the words 'UP', then press
button to scroll upward; press button until the top left of the
screen display after the words 'DWN', press button to scroll
down.
Screen 1: Display the total harmonic distortion ratio of
3-phase voltage
“H－U” displayed at the left top corner of the screen .
When the connection mode is set as 3-phase 4-wire system,
3-phase voltage Ua, Ub, Uc of THD is shown as fig 3.2.10:
THD_Ua＝0.6％；THD_Ub＝0.6％；
THD_Uc＝0.6％；
When the connection mode is set as 3-phase
3-wire system, 3-phase line voltage Uab, Ubc,
Uca of THD is shown as fig 3.2.11:
THD_Uab＝0.6％；THD_Ubc＝0.6％；
THD_Uca＝0.6％；
Screen 2: Display the total harmonic distortion ratio of
3-phase current and zero-sequence current.
“H－I” displayed at the left top corner of the screen.
The parameters are shown in fig 3.2.12:
THD_Ia＝0.6％；THD_Ib＝0.6％；
THD_Ic＝0.6％；THD_In＝0.6％；
Screen 3: Display the odd harmonic distortion ratio of
3-phase voltage
“HUO” displayed at the left top corner of the screen.
when the connection mode is set as 3-phase 4-wire system,
3-phase voltage Ua, Ub, Uc of odd THD is shown
as fig 3.2.13:
THD_O_Ua＝0.6％；THD_O_Ub＝0.6％；
THD_O_Uc＝0.6％；
when the connection mode is set as 3-phase 3-wire system,
3-phase line voltage Uab, Ubc, Uca of odd THD is shown
in fig 3.2.14:
Fig 3.2.11 THD of 3-phase line
voltage
Fig 3.2.10 THD of 3-phase voltage
Fig 3.2.12 THD of 3-phase current
and zero-sequence current
Fig 3.2.13 Odd THD of 3-phase voltage

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THD_O_Uab＝0.6％；THD_O_Ubc＝0.6％；
THD_O_Uca＝0.6％；
Screen 4: Display the odd harmonic distortion ratio
of 3-phase current
“HIO” displayed at the left top corner of the screen.
Ia, Ib, Ic and In of odd THD is shown as fig 3.2.15:
THD_O_Ia＝0.5％；THD_O_Ib＝0.5％；
THD_O_Ic＝0.5％；THD_O_In＝0.5％；
Screen 5: Display the even harmonic distortion ratio of 3-phase voltage
“HUE” displayed at the left top corner of the screen denotes THD-U-E.
The screen display is similar to screen 3.
Screen 6: Display the even harmonic distortion ratio of 3-phase current
“HIE” displayed at the left top corner of the screen denotes
THD-I-E.
The screen display is similar to screen 4.
Screen 7: Display fundamental RMS of 3-phase voltage
“H-U” displayed at the left top corner of the screen denotes
harmonic voltage. The index is displayed at the bottom of the
screen, “01” denotes fundamental wave.
When the connection mode is set as 3-phase 4-wire system,
3-phase voltage Ua,Ub, Uc of fundamental value is shown in fig
3.2.16:
Ua_1＝220.1V；Ub_1＝220.0V；
Uc_1＝220.1V；
When the connection mode is set as 3-phase 3-wire system,
3-phase voltage Uab, Ubc, Uca of fundamental value is shown in
fig 3.2.17:
Uab_1＝220.1V；Ubc_1＝220.0V；
Uca_1＝220.1V.
Fig 3.2.15 Odd THD of 3-phase current
Fig 3.2.16 Fundamental RMS of
3-phase voltage
Fig 3.2.14 Odd THD of 3-phase line
voltage
Fig 3.2.17 Fundamental RMS of
3-phase voltage