Pilot Communications SPM33 User manual

V2.0

Danger and 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
zThis device can be installed and maintained only by qualified people.
zBefore operating the device, isolate the voltage input and power supply
and short-circuit the secondary windings of all current transformers.
zPut all mechanical parts, doors, or covers in their original positions before
energizing the device.
zAlways supply the device with the correct working voltage during its
operation.
Failure to take these preventive measures could cause damage to
equipment or injuries to people

SPM33 Multifunctional power meter
Contents
1.General Information......................................................................................
2. Order information ........................................................................................
3. Dimension and Installation .........................................................................
3.1 Dimension ...........................................................................................3
3.2 Installation ...........................................................................................3
4. Operation......................................................................................................
4.1 Real-time measurement data structure ...............................................4
4.2 The graphic display .............................................................................5
4.3 Status Inquiry ........................................................................... .........6
4.4 Key Description .................................................................... .............6
4.5 Parameter settings ............................................................... ............. 7
5. Measuring Capability. ...............................................................................
5.1 Real-time basic electrical parameters ...............................................13
5.1.1 Voltage...................................................................................14
5.1.2 Current...................................................................................14
5.1.3 Frequency..............................................................................15
13
4
3
1
2
......

SPM33 Multifunctional power meter
5.2 Demand Parameters .........................................................................1
5.3 Energy parameters............................................................................17
5.4 Harmonic parameters........................................................................17
5.5 Unbalance parameters ......................................................................18
5.6 Alarm Setpoint...................................................................................18
5.6.1 Alarm action condition............................................................20
5.6.2 Alarm Output..........................................................................21
6. Input/output Characteristics ....................................................................
6.1 Relay output ......................................................................................21
6.2 Status input .......................................................................................23
6.3 Dual Source kWh measurement .......................................................24
7. Technical Datasheet ..................................................................................
8. Communication protocol ..........................................................................
8.1. Introduction ......................................................................................27
8.2. Detailed Description of the SPM33 Modbus Protocol.......................28
8.2.1. SPM33 Modbus Protocol Rules............................................28
8.2.2. Modes of Transmission.........................................................29
8.2.3. Description of the Modbus Packet Structure.........................29
27
25
21
5

SPM33 Multifunctional power meter
8.2.4. Abnormal Responses............................................................31
8.2.5. Broadcast Packets................................................................32
8.3. Packet Communication ....................................................................33
8.3.1 Read the Relay Output Status (Function Code 01H) .............33
8.3.2. Read Holding Registers (Function Code 03H)......................35
8.3.3 Relay Control (Function Code 05H).......................................36
8.3.4. Preset Multiple Registers (Function code 10H).....................37
8.4. Calculating the CRC-16 Error Check Field.......................................38
8.5. Description of SPM33 Registers.......................................................42
8.6 Description of Data Types .................................................................42
8.6.1 Real-time data register list .....................................................43
8.6.2 List of demand data registers.................................................52
8.6.3 List of harmonic data registers...............................................55
8.6.4 List of configuration registers.................................................58
8.6.5 Register for command and clear energy................................64
8.6.6 List of device information registers ........................................65
9. Maintenance and Trouble Shooting .........................................................
10. Appendix 1 ...............................................................................................69
66

1. General Information
SPM33 three phase multi-function power meters, mainly apply to Low Voltage Distribution
System, which voltage below AC400V (L-N), it can through RS485/ Modbus communication
to manage instrument of network, and achieve automatic control.
The main characteristics of SPM33 are as follows:
Real-time parameter measurement
(Three-phase voltage, current, active power, reactive power, apparent power, power factor,
frequency, active energy, reactive energy, and other combined electrical parameters
measurement)
Demand measurement
(Phase current demand, sub-phase active demand, total active demand, the maximum
current demand, maximum total active demand, three phase reactive power, total reactive
power, three phase apparent power, total apparent power demand, save their maximum
value.)
2 active status inputs
2 relay outputs（optional）
Alarm function
Up to the 31st harmonic measurement, phase voltage and current harmonic content
(2 to 31),THD
1 RS485 communications, Modbus-RTU protocol
Phase sequence adjustment
Support Dual-source kWh measurement
1

2. Order information
SPM33 - □- □
①②
①：Feature selection
R Two relay alarm output
②：Rated identify measurement parameters
V1 3×220/380V, 5A
V2 3×220/ 380V ,1A
Example: SPM33-R-V1: the low-voltage three-phase multifunction power meter,
rated measuring 220/380V 5A, with standard 2 status inputs, optional 2 relay
alarm output.
2

3. Dimension and Installation
3.1 Dimension unit：mm
3.2 Installation
unit：mm
3
COM ALARM
96.0
96.0
69.8 89.50
80.5
89.5
SPM33
90.0
+0.5
-0.0
90.0
+0.5
-0.0

4. Operation
4.1 Real-time measurement data structure
（1）Real-time measurement data display by the form of main menu、submenu：
page button of main menu：page button of submenu：
（2）Menu tree diagram:
①Can flip the main menu by press .
②Can flip the submenu which under the main menu, by press .
4

4.2 The graphic display
1 : Prompt of the currently displayed page；
2：Prompt display page number；
3：Status prompt of DI/DO ；
4：Data display area；
5：Energy display area；
6：The secondary menu prompt；
7：Prompt under a main menu；
Description:
(1) If there is no key operation within 60s, the backlight automatically turns off,
when the backlight is lit until the button operation again.
(2) Status prompt of DI/DO displays the current status of DI / DO ,each circle
represents a DI or DO signal, when DI signal or relay is closed, the
corresponding circle is solid; conversely, was hollow.
Phase U 1/8
IL-L
34379.7 kWh
A
B
C
kWh
V
V
V
2200
.
2200
.
2200
.
6
1
2
3
4
5
7
DO oo
DI oo
5

4.3 Status Inquiry
(1) COM lamp, always bright when power on, blinks when there is
communication.
(2) ALARM lamp, flashes when there is an alarm, off when no alarm off.
4.4 Key Description
Note: In a different interface, the same keys have different functions.
Sibling menu switch / move the cursor to the right
Switching sibling menu to submenu / move the cursor to the left
Exit
Enter the menu / confirm
6

4.5 Parameter settings
Meter Programming
SPM33 can program the following
parameters：
Project programming
CT values Adjustment
phase
sequence
Communication Language
Terminal Mode Demo
Alarm Password
Relay Version
Clean /
The projects of configuring different
instrument is not completely consistent,
not even, so the user should operate
according to the specific circumstances of
the instrument:
CT value：press key to enter CT
interface，the figure as below.
You can set ratio according to the site CT,
CT setting range: 1 to 10000.
COM ALARM
1/11 DI oo
CT
1
COM
CT
SPM33
2. Communication: press key to
enter the communication interface, can
set meter mailing address and baud rate,
the figure as below. Mailing Address
range: 1 to 247, the baud rate can be set:
4800, 9600, 19200
COM ALARM
2/11 DI oo
Addr
3
COM
Baud
4800
Mode
SPM33
3.Connection mode: press key to
enter the interface, to set terminal
mode according to the scene of the
connection mode, figure as below.
Terminal mode can be set: three-phase
three-wire, three-phase four-wire;
7

COM ALARM
3/11 DI oo
Mode
4Y
Alarm
Mode
SPM33
4.Alarm：Press key to enter the
voltage limit alarm interface, figure as
bellow:
COM ALARM
4/11 DI oo
Value
494.79
Relay U-lower
Alarm
Time
4
U-Upper
V
s
SPM33
Press key ，the user can view and
set the other object of alarm:
Voltage limit, current limit, lower limit of
current, frequency, frequency lower limit
and upper limit, alarm of phase lack, the
status 1 is broken.
①Action value of voltage upper limit：
unit is V，two decimal places.
Setting range: 110 ~ 500V.
Notice: action value of voltage upper limit
must be greater than voltage lower limit.
Can be set to”0”,”0”indicates that the
alarm type is closed.
②Action value of voltage lower limit :
unit is V，two decimal places.
Setting range: 110 ~ 500V.
Notice: action value of voltage lower limit
must be less than voltage upper limit. Can
be set to”0”,”0”indicates that the alarm
type is closed.
③Action value of current upper limit：
unit is A，one decimal places.
range：1.0~60000.0A.
Notice: current is the value for the upper
limit must be greater than current lower
limit. Can be set to”0”,”0”indicates that the
alarm type is closed.
8

④Action value of current lower limit :
unit is A，one decimal places.
range：1.0~60000.0A.
Notice: current is the value for the primary
side. Action value of current lower limit
must be less than the current upper limit
can be set to “0”,”0”indicates that the
alarm type is closed.
⑤Action value of frequency upper limit：
Unit is Hz，two decimal places.
range：45~65Hz.
Notice: action value of frequency upper
limit must be greater than frequency lower
limit. Can be set to”0”,”0”indicates that the
alarm type is closed.
⑥Action value of frequency lower limit：
Unit is Hz，two decimal places.
range：45~65Hz.
Notice: action value of frequency lower
limit must be less than frequency upper
limit. Can be set to “0”, ”0”indicates that
the alarm closed.
⑦Action value of power upper limit：
unit is kW，one decimal places.
range：0.1~40000.0kW.
Notice: power is the value for the primary
side. Can be set to”0”,”0”indicates that the
alarm
All of the above operation can set primary
side. Action value of current type is
closed.
the time of action，unit is s，
range：0~120s.
Notice: setting of voltage phase failure
and status 1 off：
On---said opening the alarm type;
Off---said closing the alarm type.
9

5. Relay: press key to enter the
relay 1 interface, figure as below.
Mode: You can set the remote or alarm
mode.
Reset time setting range: 0 ~ 120s.
COM ALARM
5/11 DI oo
Mode
Remote
Clear
Relay 1
Return
11
Relay 1
s
Relay 2
SPM33
Press key ，you can view the setting
of relay 2 ,it can set as the relay 1.
6. Clear: press key to enter the
clear interface, figure as below. Can clear
energy or demand.
COM ALARM
6/11 DI oo
Energy
NO
Phase-Ad
Clear
Demand NO
Clear
SPM33
7.Phase sequence adjustment: press the
keys to enter the phase sequence
Adjust interface. figure as below，the user
can adjust the current channel phase
sequence and direction, which
corresponding to voltage ,in accordance
with the wiring on-site;
COM ALARM
7/11 DI oo
U1
Language
Phase-Ad
U1
U1
I1
I2
I3
SPM33
Voltage adjust current channel map, can
be set to:
I1：Channel voltage & I1 Channel current match,
-I1：Channel voltage & I1 Channel current
match,，I1 reversed polarity,
I2：Channel voltage & I2 Channel current
match,，
-I2：Channel voltage & I2 Channel current
match,I2 reversed polarity,
I3：Channel voltage & I3 Channel current
match,
-I3：Channel voltage & I3 Channel current
match,，I3 reversed polarity,
10

8. Language: press key to enter the
language setting interface, figure as
below, the user can choose Chinese and
English languages.
COM ALARM
8/11 DI oo
Language
English
DEMO
Language
SPM33
9.Demo：press key to enter Demo
setting interface，figure as below.
OK：indicate open Demo mode
NO：indicate close Demo mode
COM ALARM
9/11 DI oo
Demo NO
Password
Demo
SPM33
10. Password: press key to enter
Password modification interface. figure as
below
11. Version: press key to enter the
version display, figure as below, you can
view the software and hardware versions of
the instrument.
COM ALARM
11/11 DI oo
Soft
****
CT
Version
Hard
****
SPM33
11

Precautions
1.when password authentication input
password "33",the display the original
password;
2.when instrument work under the
three-phase three-wire mode , active
power, reactive power and power factor are
only the sum of the value, and there is no
concept of a single-phase, single-phase
value is 0;
3.For the instrument which do not
support the relay output function, will not
have the relevant settings menu;
4.When the data setting is invalid, the
set is unsuccessful, restore the original
parameters;
5. For other customization features, in this
description does not describe!
12

5. Measuring Capability
5.1 Real-time basic electrical parameters
SPM33 provides voltage, current, power, and frequency etc. basic parameters.
Real-time reading Measuring range
current
Each phase 0 ~ 65，000A
Zero sequence 0 ~ 65，000A
Degree of unbalance (%) 0 ~ 100%
voltage
Line-line 0 ~ 650V
Line-neutral line 0 ~ 400V
Degree of unbalance (%) 0 ~ 100%
Active power/Reactive power /Apparent power
Single phase 0 ~ ± 26MW/var/VA
Total 0 ~ ± 78MW/var/VA
Power factor
Single phase -1.000 ~ +1.000
To t a l - 1 . 0 0 0 ~ + 1 . 0 0 0
Frequency
35 ~ 65Hz 35 ~ 65Hz
13

5.1.1 Voltage
SPM33 maximum measurement of phase voltage is 400V, three-phase
three-wire line voltage can up to 500V. Users should be noted that during the
design of this, to prevent internal measuring circuit saturation, resulting in
inaccurate measurements. Wiring mode of voltage can be set by the panel or
communication, support “Y” and triangle connection mode.
Recommendation: After changing the wiring mode, you`d best clear energy,
re-accumulate energy.
5.1.2 Current
SPM33 must be conducted by CT to measure current. CT secondary rated
output required to meet the input requirements of SPM33 rated current (5A or
1A). When using an external CT, wiring should prevent open, otherwise it will
generate a higher voltage in the secondary role In the primary excitation effect,
causing no casualties or damage to equipment.
SPM33 overload of current measurement channel is generally 1.2 times the
rated current measurements. During the design of this users should be noted
that, to prevent internal measuring circuit saturation, resulting in inaccurate
measurements. SPM33 current measurement range: 0 ~ 65kA. Setting range of
CT transformation ratio is: 1 ~ 10000A.
14

5.1.3 Frequency
SPM33 working on different measurement mode, the acquisition channel of
the frequency measurement is not the same. In the triangle connection mode,
SPM33 measures frequency default by AB line voltage channel ; under other
modes, SPM33 measures the frequency by the A phase voltage channel. If
phase A default phase, then take the C phase. If A, C-phase default phase, then
take the B phase.
5.2 Demand Parameters
Demand refers to the value obtained in the following way: the accumulated
electrical parameters within a period of time divided by the time length. To
facilitate the operation of the user, SPM33 adopts the fixed-block calculation
method in the fixed period of time, and the period of time is fixed, being 15
minutes.
SPM33 provides the following demand data and measuring ranges:
15