Pilot Communications SPM20 User manual
SPM20
Circuit Monitoring System
Installation & Operation Manual V0.4
Danger & Warning
This device can be installed only by professionals.
The manufacturer shall not be held responsible for any accident
caused by the failure to comply with the instructions in this manual.
Risks of electric shocks, burning, or explosion
This device can be installed and maintained only by qualified people.
Before operating the device, isolate the voltage input and power supply
and short-circuit the secondary windings of all current transformers.
Use appropriate voltage tester to make sure the voltage has been
cut-off.
Put all mechanical parts, doors, or covers in their original positions
before energizing the device.
Always supply the device with the correct working voltage during its
operation.
Contents
Chapter 1 General Information..............................................................................4
Chapter 2 Product Type..........................................................................................5
Chapter 3 Figure & Installation..............................................................................5
3.1 Figure dimension......................................................................................5
3.2 Installation Dimension.............................................................................6
Chapter 4 Display & key operation.......................................................................9
4.1 Full display.................................................................................................9
4.2 Status query............................................................................................10
4.3 Key............................................................................................................10
4.4DisplayInterface.................................................................................10
4.5 Data setting.............................................................................................12
Chapter 5 Measurement......................................................................................14
5.1 Real time basic electric parameter....................................................14
5.2 Power Parameter..................................................................................15
5.3 Data setting alarm.................................................................................15
Chapter 6 Communication...................................................................................17
6.1....................................................................................................................17
6.2Communication Protocol.......................................................................17
6.4 Communication Parameter.................................................................17
Chapter 7 Technical information.........................................................................18
Chapter 8 Appendix..............................................................................................19
8.1 Terminal Definition.................................................................................19
8.2Typicalconnectionwiring................................................................20
Chapter 1 General Information
SPM20 CMS is a monitoring system especially to the power terminal by its micro
distributed multi-circuit monitoring unit. It consists the measurement module and
control module, and these two modules is connected by the PLbus general line
which is also researched by Pilot, and the connector plug is by the standard RJ12
which can simplify the installation on site.
SPM20 is suitable to Power distribution cabinet and switch cabinet of the
Low-voltage distribution system less than AC 220V（phase voltage）, and support to
single phase two wires and three-phase four-wires system. One monitoring unit can
support 30pcs measurement modules at most, and can monitor 10 three-phase
circuits or 30 single phase circuits, and have the measurement and metering function
to the general data of the three-phase branch (general power, total electric-energy).
Its current measurement is in maximum 63A, can satisfy the different application on
site.
The micro distribution multi-circuit measurement unit can be for multiple installation,
and the controller conforms to DIN35 rail install, and backboard screw fixation install;
There are the closed in line installation and opening buckle mounting for the option
as required. The connection between the measurement unit and controller is by the
standard RJ12 port, can make the wiring arrangement easy on site.
The Function realized as follows：
Real-time data measurement
1/3 phase voltage
1/3 phase current
Active power
Reactive power
Apparent power
Power factor
Frequency
Metering
Active energy
Reactive energy
Alarm
Under voltage
Over voltage
Over current
Module Fault
Communication
1 RS485 communication，Modbus-RTU protocal
Chapter 2 Product Type
SPM20 consists 1 controller（SPM20-CTRL）and 30 measurement unit at most which
has split core（SPM20-CTO）and solid core（SPM20-CTC）for the option or mixture
use.
Model list：
SPM20-CTRL AC: 3×220/380V，power supply from A phase voltage wire
SPM20-CTO Rated current 10（50）A，accuracy 2.0, hole 9.5mm
SPM20-CTC Rated current 5（63）A，accuracy 2.0, hole 8mm
The RJ12 among the measurement units by the daisy chain, the length are only by
6cm or 30cm for the site installation option, and the length of every measurement
wire（PLbus）must not be more than 300cm.
Chapter 3 Figure & Installation
3.1 Figure dimension
unit：mm
Figure 1 : controller dimension
Figure 2: CTC Solid core measurement unit installation dimension
Figure 3: CTO split core buckle installation dimension
3.2 Installation Dimension
Unit：mm
Figure 4: Controller installation
Figure 5: Solid core measurement unit installation
Figure 6: Split core measurement unit buckle installation
Figure 7: Solid core measurement unit installatio
Figure 8: Split core measurement unit installation
Attention：Forbid hot plugging RJ12 connect to PLbus, because of the
voltage passed safety range on RJ12 after SPM20 power on.
Chapter 4 Display & key operation
4.1 Full display
SPM20has a LCD with resolution ratio of
128*64, which can realize multi-function
menu change by the two key on LCD, and the
menu prompt.
Remark：If no key operation within 60s, LCD
backlight will be off, till the operation cause it
lighting.
Ua 238.6 V
Ub 119.6 V
Uc 119.6 V
F 49.98 Hz
4.2 Status query
Indicator Color Display Indication info
Status Green No light Normal operation
Light Module on adding
Flicker Communicate to the controller, or flicker when
the module energy page shown on this
controller display.
Pulse Red Flicker Energy pulse indication, pulse constant 1000
4.3 Key
Remark：The same key has different function on different interface.
ALT in the same level menu
Return / enter
4.4DisplayInterface
Datadisplay
energy：energy query
alarm：alarm query
info：meter info query
1. energy query：Press any key on
main page to enter into energy
query page, and to show active
energy of every monitoring module
page by page; to show the total
active energy of every 3P3W in
3P3W connection mode.
Press to check the energy data
of every circuit one by one, and
press to return to home page.
1-A
0.0
kWh
○
1Over voltage alarm: press to
enter into ”voltage” alarm page as
follows，B phase in alarm by its
overvoltage.
alarm
Ub-upper
○
2Under voltage alarm: press to
enter into “voltage”alarm page as
follows，A phase in alarm below lower
limitation.
alarm
Ua-lower
2. Alarm: Press to enter into alarm
interface, as follow:
voltage
current
module
return
○
4Module fault alarm: press to enter
into ” module” alarm page as follows:
module 1 in alarm of missing.
alarm
Ia - 1
lost
5. No alarm interface as follows:
NO- alarm
○
3Over current alarm: press to
enter into ”current”alarm page as
follows: the circuit 1, A phase current in
alarm surpass the upper limit.
alarm
circuit 1
Ia - upper
3. Meter info check: this page shows the
wire connection mode, the
communication port, and the
configured module quantity and
meter version, without password.
SPM20-3P4W
com 1 9600
module 12
version 100
4.5 Data setting
Meter program
SPM20 can set data program：
Program item
CT module set
Controller communication
The different meter configured has the
different items, or nothing. So the
user should operate by according to
the meter configuration：
1. Controller communication:
press to enter into the
communication interface, to set
the communication address and
baud rate as follows, address
range: 1~247，
Baud rate range：4800 、9600、
19200
ID 001
baud 9600
return
2. CT module set：add CT、remove
CT、clear all CT，as follows：
add
remove
empty
return
○
1Add CT: press to be in ”add” as
follows: add CT 1.
add
1 - A
confirm return
○
2Remove a CT: press to be
in ”remove” as follows: remove CT 1
remove
1 - A
confirm return
○
3Clear all CT: Press to be
in ”empty” as follows: clear all CTs
remove all
yes
no
3. password：press to be in
password interface.
As follows:
pass
0000
Operation: typical example
Suppose the meter rate current input
5A，in 3P3W mode，no any CT module
connection on site, and the
communication address 100，initial
password is 1，now to add 1-A CT
module as follows：
1、press to be in “set” interface,
continue to press to pop up the
“password” page.
pass
0000
2. the present password unit digit
flicker, press to change the
units digit as 1. And no change
for the decade as it is 0,（initial
password is 01）. The change
accomplish as follows,
press to confirm.
pass
0001
Password OK, press to select
module，press to enter into the
module interface
add
remove
empty
return
Press to enter into “add” interface，
press to change the module
address as follows：
add
1- A
confirm return
Press the button of the adding module,
when the red light on,
select“confirm”and press ，then the
red light off, means adding 1-A OK as
follows：
Chapter 5 Measurement
5.1 Real time basic electric parameter
Real time reading Measurement range
Current
CTC solid core threading install 0 ~ 63A
CTO split core buckle install 0~ 50A
V
oltage
Wire – wire 0 ~ 460V
Wire – neutral wire 0 ~ 265V
Attentions
1、when adding CT module, it must
press the button of the module
need to be added firstly, only after
the left red light on, it could
press“confirm”.
2、Long press the module button more
than 10s, to recover the module
address to the default 1.
3、Invalid by adding the repeat address
4、it can distinguish the monitoring
module address by checking the
energy data. example：when check
1-A energy data，then the left red lamp
light on of the 1-A module .
5、when the set data invalid, the setting
is void，so recover the original
data；
6、for other customized function, no
explanation in this manual！
add
1 - A
confirm return
By the same way，other data
modification is by the same procedure
Active/Reactive/Apparent Power
Each phase 0 ~ ± 14KW/var/VA
Sum 0 ~ ± 42KW/var/VA
Power Factor
Each phase 0 ~ +1.000
Sum 0 ~ +1.000
Frequency
45 ~ 55Hz 45 ~ 55Hz
5.1.1 Voltage
SPM20 phase voltage range is 220V to which the user should pay attention, for prevent
from the circuits inside saturation which could make the measurement not correct.
Suggestion：It should clear away the power energy, for reopening the energy
accumulation, just after the wire connection mode.
5.1.2 Current
SPM20 current needs to be measured by monitoring module, with CTC (solid core
threading install) and CTO（split core buckle install）for the application option. CTC rated
current 5（63A），can measure the circuit with the maximum 63A；CTO rated current 10
（50A），can measure the circuit with the maximum 50A.
The user should pay attention to the current range of circuits in course of the design, to
prevent from the circuit saturation which cause the incorrect measurement.
5.2 Power Parameter
SPM20 active/reactive, input/output electrical degree, the maximum accumulation is till to
99999999.9, by showing one decimal place; And will automatically reverse when the
accumulation is to the maximum value.
5.3 Data setting alarm
SPM20 have custom data setting alarm system, for the electrical parameter monitoring by
according to the set. When there is some alarm event, it could be changed to the alarm
interface, for the alarm events checking and the reading of alarm types by the
communication; after the alarm event removed, the “ALARM” light is off, and the alarm
interface appear “NO-alarm”.
Setting Alarm Subject table:
Alarm
Subject Alarm Active Notice
Voltage
upper limit
The Maxim primary voltage value in
three phase > setting voltage upper
limit value (3P4W, phase voltage
value)
Active value = 0 means
close alarm
Voltage lower
limit
The Minimum primary voltage value in
three phase more than 110V < setting
voltage lower limit value
Active value = 0 means
close alarm
Current lower
limit
The Maxim primary current value in
three phase > setting current upper
limit value
Active value = 0 means
close alarm
5.3.1 Alarm Output
When alarm happened, change to the page of alarm notice can check alarm
type, press return key will return to current interface. Alarm can also be
checked by RS485 communication, after alarm disappeared, on the page of alarm
will display “No-Alarm”
Chapter 6 Communication
6.1
6.2Communication Protocol
Please refer to SPM20 communication protocol manual
6.4 Communication Parameter
SPM20 communication parameter：
◇Meter ID：Each SPM20 with unique ID number, free change by user
◇Baud Rate：4800，9600，19200 for choose
Chapter 7 Technical information
Parameters Range
Rated
parameter
Rated power supply Power supply from phase A voltage
Rated input current
(CTC) 5（63）A
Rated input current
(CTO) 10（50）A
Rated input voltage AC 3P4W 3×220/380V，Range:
40%-150%，45Hz~65Hz
Parameter Range Accuracy
Accuracy
Voltage 40%~120% 0.5%
Current 1%~120% 0.5%
PF -1~1 1.0%
Active Energy (CTC) 0~99999999.9 1%
Active Energy (CTO) 0~99999999.9 2%
Reactive Energy 0~99999999.9 2%
Active Power Single Phase：0 ~ ±14
kW/var/VA
To ta l ：0 ~±42kW/var/VA
1.0%
Reactive Power 2.0%
Parameter Performance
Power Loss ≤5W/10VA
Temperature Normal working -20℃～+55℃
Limit operating
temperature -25℃～+75℃
Storage temperature -30℃～+80℃
Humidity Less than 95%
Insulation
performance Power frequency
withstand voltage
2000VAC
Insulation resistance ≥100MΩ
Impulse voltage 6000V
IP
Tota l IP 2 0
Item Standard Class
Electrostatic
Discharge Immunity
GB/T17626.2-2006
(IEC61000-4-2:2001)
Class 4
Radio frequency
electromagnetic field
radiation immunity
GB/T17626.3-2006
(IEC61000-4-3:2002)
Class 4
Electrical Fast GB/T17626.4-2008 Class 4
Chapter 8 Appendix
8.1 Terminal Definition
Measuring module（CTO&CTC）
Electricity
magnetic
Transient Burst
Immunit
y
(IEC61000-4-4:2006)
Surge (shock)
immunity
GB/T17626.5-2008
(IEC61000-4-5:2005)
Class 4
Immunity to
conducted
disturbances
induced by RF field
GB/T17626.6-2008
(IEC61000-4-6:2006)
Class 3
Electromagnetic
emission limits
GB 9254-2008
(CISPR22：2006)
Pass
Voltage sag, short
interrupt immunity
GB/T17626.11-2008
(IEC61000-4-11:2004)
Pass
Power frequency
withstand voltage
GB/T 17215.211-2006
Item Definition Illustration Item Definiti
on Illustration
1 485+ RS485+ 2 485- RS485-
3 SHLD RS485 Shield 4 VA A phase
5 VB B phase 6 VC C phase
7 VN Neutral 8 NC Null
9 PLbusA
A phase measuring
module port 10 PLbusB
B phase
measuring
module port
11 PLbusC
C phase measuring
module port
Item Definition Illustration Item Definition Illustration
1 J1 MeasuringBUS
port1 2 J2 MeasuringBUS
port2
8.2Typicalconnectionwiring
■Singlephasetwowiresystem
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