M-system 54U User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 1 / 26
INSTRUCTION MANUAL
MULTI POWER MONITOR
(4 digital displays) MODEL 54U
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Multi power monitor
(body + mounting bracket × 2 + gasket) ............................(1)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
For detailed explanations to operate and program the mod-
ule, please refer to Model 54U Operating Manual (EM-
6487-B).
The 54U is programmable either by using the front control
buttons or the PC Configurator Software. For detailed in-
formation on the PC configuration, refer to the PMCFG us-
ers manual.
Software and manuals are downloadable at M-System’s
web site: http://www.m-system.co.jp
POINTS OF CAUTION
■AUXILIARY POWER SUPPLY RATING & OPERATIONAL
RANGE
• Locate the auxiliary power supply rating marked on the
product and confirm its operational range as indicated
below:
100 – 240V AC rating: 85 – 264V AC, 47 – 66 Hz, < 8VA
110 – 240V DC rating: 99 – 264V DC, < 4W
■GENERAL PRECAUTION
• Before you remove or mount the unit, turn off the power
supply and input signal for safety.
■ENVIRONMENT
• Indoor use.
• Do not install the unit where it is directly exposed to rain,
water droplets or sunlight.
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C
(14 to 131°F) with relative humidity within 90% RH in
order to ensure adequate life span and operation.
• Contrast of the LCD screen depends upon viewing angles.
Choose the height and angle where it is the most legible.
• Do not apply physical impact to the front face.
• To ensure the designated ingress protection, insert the
gasket before attaching the mounting brackets.
• When using the mounting brackets, remove the mounting
screws and turn back the gasket as shown below.
Mounting Bracket
Panel
Gasket
■WIRING
• Wiring to the unit must be conducted by qualified service
personnel.
• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■AND ....
• The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
• Altitude up to 2000 meters.
• The equipment must be mounted inside a panel.
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 2 / 26
COMPONENT IDENTIFICATION
∑
IU PQS PF THDMAX E PRG ESC
2
2
• CONFIGURATION CODE: 2
• CONFIGURATION CODE: 1
Auxiliary Power
Supply Terminals
Auxiliary Power
Supply Terminals
■FRONT VIEW ■REAR VIEW
Discrete I/O
Terminals
Infrared Interface
Voltage Input
Terminals
Current Input
Terminals
Modbus / Analog Output
Terminals
Control Buttons
Data Displays
Discrete I/O
Terminals
Current Input
Terminals
Voltage Input
Terminals
Modbus / Analog Output
Terminals
■ CONTROL BUTTON OPERATIONS
∑
IU
PQS
MAX
E PRG
PF THD
ENTER
ESCAPE
E PRG ESCAPE
E PRG ESCAPE
∑
∑
IU
+
+
PQS
PF THD
Hold down
IU Hold down
Hold down
Hold down
Hold down
Hold down
NORMAL MODE
Indicates
∑ values
Indicates Voltage or Current
Indicates Power
Indicates Power Factor or THD
Indicates totalized values
(max., min., average/demand)
Switches Energy readings
Switches to My Default mode
Switches to PC Configuration mode
Switches to Setting mode
Indicates Harmonics by degrees
Switches Energy reading units
Indicates the shortcut menu
SETTING MODE
Go Left
Go Right
Go Down
Go Up
Selects menu; Enables setting changes
Cancels setting changes
----
----
----
----
----
----
BUTTON OPERATION FUNCTIONS

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 3 / 26
EXTERNAL DIMENSIONS unit: mm (inch)
■CONFIGURATION CODE: 2
■CONFIGURATION CODE: 1
110 (4.33)
110 (4.33)
91.5 (3.60)
91.5 (3.60)
100 (3.94)25 (.98)
MOUNTING BRACKET 2-M5 SCREW
2
110 (4.33)
110 (4.33)
91.5 (3.60)
91.5 (3.60)
115 (4.53)25 (.98)
MOUNTING BRACKET 2-M5 SCREW
2
92
92
+ 0.8 (3.65)
0 (3.63)
+
0.8 (3.65)
0 (3.63)
Panel thickness : 2 to 15 (.08 to .59)
45 (1.77) 45 (1.77)
45 (1.77)45 (1.77)
■ PANEL CUTOUT unit: mm (inch)
• USING MOUNTING SCREWS
Remove the mounting brackets.
• USING MOUNTING BRACKETS
Remove the mounting screws.
Panel thickness : 2 to 10 (.08 to .39)
101 ±1 dia.
2–6 (.24) dia.
(3.94 – 4.01 dia.)

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 4 / 26
TERMINAL CONNECTIONS
• Analog Output • Modbus
■CONFIGURATION CODE: 1
U( + )
V(–) NC
NC
DO/PO
+
DI + Ao1 +
1S 1L 3S 3L
2
P1 P2 P3
Ao2
+ Ao3 + Ao4 +
DO/PO
–DI–Ao1– Ao2– Ao3– Ao4–
1S 1L 3S 3LP1 P2 P3
2
U( + )
V(–) NC
NC
DO/PO
+
DI + T1 T3 NC NC
DO/PO
–DI–T2T4NCNC
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
uv vu
UV VU
kl
KL
kl
KL
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
kl
KL
kl
KL
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
P1 P2 P3 1S 1L
1
source load
2
3
uv vu
UV VU
kl
KL
P1 P2 P3 1S 1L
1
source load
2
3
kl
KL
P1 P2 P3 1S 1L
1
source load
2
3
P1 P2 1S 1L
1
source load
2
kl
KL
uv
UV
P1 P2 1S 1L
1
source load
2
kl
KL
P1 P2 1S 1L
1
source load
2
System /
Application
Single-phase /
2-wire
Three-phase /
3-wire,
balanced load
Single-phase /
3-wire
Three-phase /
3-wire,
unbalanced load
(2CT)
Te rminal
System /
Application
Te rminal
Note: For low voltage circuit, grounding is not required.

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 5 / 26
• Analog Output
■CONFIGURATION CODE: 2
• Modbus
U( + )
V(–) NC
NC
DO/PO
+
DI + Ao1 +
2S 2L 3S 3L
2
NC 1S 1L
P3 NP1 P2
Ao2
+ Ao3 + Ao4 +
DO/PO
–DI–Ao1– Ao2– Ao3– Ao4–
2S 2L 3S 3LNC 1S 1L
P3 NP1 P2
2
U( + )
V(–) NC
NC
DO/PO
+
DI + T1 T3 NC NC
DO/PO
–DI–T2T4NCNC
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
uv vu
UV VU
kl
KL
kl
KL
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
kl
KL
kl
KL
P1 P2 P3 1S 1L 3S 3L
1
source load
N / 2
2 / 3
P1 P2 P3 1S 1L
1
source load
2
3
uv vu
UV VU
kl
KL
P1 P2 P3 1S 1L
1
source load
2
3
kl
KL
P1 P2 P3 1S 1L
1
source load
2
3
P1 P2 1S 1L
1
source load
2
kl
KL
uv
UV
P1 P2 1S 1L
1
source load
2
kl
KL
P1 P2 1S 1L
1
source load
2
System /
Application
Single-phase /
2-wire
Three-phase /
3-wire,
balanced load
Single-phase /
3-wire
Three-phase /
3-wire,
unbalanced load
(2CT)
Te rminal
1S 1L 3S 3L
1
source load
2
3
kl
P1
uv
UV
P2
uv
UV
P3
uv
UV
N
KL kl
KL
P1 P2 P3 1S 1L 3S 3LN
1
source load
2
3
kl
KL kl
KL
2S 2L
kl
KL
P1 P2 P3 1S 1L 3S 3LN 2S 2L
1
source load
2
3
N
N
N
2S 2L
kl
KL
1S 1L 3S 3L
1
source load
2
3
kl
P1
vu
UV
P2
uv
UV
P3
KL kl
KL
P1 P2 P3 1S 1L 3S 3L
1
source load
2
3
kl
KL kl
KL
2S 2L
kl
KL
P1 P2 P3 1S 1L 3S 3L2S 2L
1
source load
2
3
2S 2L
kl
KL
P1 N 1S 1L
1
source load
2
kl
KL
uv
UV
P1 N 1S 1L
1
source load
2
3
N
kl
KL
P1 N 1S 1L
1
source load
2
3
3
N
N
System /
Application
Three-phase /
4-wire,
balanced load
Three-phase /
3-wire,
unbalanced load
(3CT)
Three-phase /
4-wire,
unbalanced load
Te rminal
Note: For low voltage circuit, grounding is not required.

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 6 / 26
T3
T4
T2
T1
Term.
Resist.
+
–
Shielded Twisted-pair Cable
Jumper *1
V(–)
U(+)
DO/PO–
DO/PO+
DO/PO–
DO/PO+
DI –
DI +
DISCRETE
INPUT
DISCRETE
OUTPUT
DO/PO–
DO/PO+
DI –
DI +
DISCRETE
INPUT
DISCRETE
OUTPUT
• Discrete Input Connection E.g.
+
-
• Discrete Output Connection E.g.
+
-
DI +
DI –
To other
Modbus devices
■EXTERNAL INTERFACE CODE: 1
V(–)
U(+)
AO4 –
AO4 +
AO3 –
AO3 +
ANALOG
OUTPUT 3
ANALOG
OUTPUT 4
AO2 –
AO2 +
AO1 –
AO1 +
ANALOG
OUTPUT 1
ANALOG
OUTPUT 2
■EXTERNAL INTERFACE CODE: 2, 3, 7, 8
T3
T4
T2
T1
Term.
Resist.
+
–
Shielded Twisted-pair Cable
Jumper *1
V(–)
U(+)
DO/PO2–
DO/PO2+
DO/PO1–
DO/PO1+
DISCRETE
OUTPUT 1
DISCRETE
OUTPUT 2
DO/PO2–
DO/PO2+
DO/PO1–
DO/PO1+
DISCRETE
OUTPUT 1
DISCRETE
OUTPUT 2
To other
Modbus devices
■EXTERNAL INTERFACE CODE: 4
V(–)
U(+)
AO4 –
AO4 +
AO3 –
AO3 +
ANALOG
OUTPUT 3
ANALOG
OUTPUT 4
AO2 –
AO2 +
AO1 –
AO1 +
ANALOG
OUTPUT 1
ANALOG
OUTPUT 2
■EXTERNAL INTERFACE CODE: 5, 6, 9, A
*1. When the device is located at the end of a transmission line via
twisted-pair cable, (when there is no cross-wiring), close across the
terminal T2 –T3 with a leadwire.
When the device is not at the end, no shortcircuit wire is required.
*2. For ‘External interface’ code 7, 8, 9 and A, the analog outputs are
isolated between each other.
*2*2
AUXILIARY POWER AUXILIARY POWER
AUXILIARY POWER AUXILIARY POWER
WIRING INSTRUCTIONS
■M3 Screw (discrete input, discrete output, analog output,
Modbus, auxiliary power)
Torque: 0.6 N∙m
■M4 Screw (voltage input, current input)
Torque: 1.4 N∙m

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 7 / 26
COMMUNICATION CABLE CONNECTION
R2K-1
T1
T2
T3
T4
54U
T1
T2
T3
T4
T1
T2
T3
T4
54U
CONNECTOR
RS-232-C
RS-485
*1*1
*1. Internal terminating resistor is used when the device is at the end of a transmission line.
*2. Install shield cables to all sections and ground them at single point.
*2
FG
RS-485
CONFIGURATION VIA INFRARED COMMUNICATION
Multi Power Monitor
(model: 54U)
max. 1 meter
Infrared Communication Adaptor
(model: COP-IRU)
Note 1: Hold down IU button to enter to Infrared Communication mode (IR-READY on the display).
Hold down IU button to exit Infrared Communication mode.
During Infrared Communication mode, the analog outputs and Modbus communication are not available.
Note 2:
COP-IRU communicates with one 54U. DO NOT set more than one 54U to Infrared Communication mode simultaneously.

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 8 / 26
SYSTEM CONFIGURATION EXAMPLES
Multi Power Monitor
(model: 54U)
Multi Power Monitor
(model: 54U)
RS-232-C
RS-232-C/RS-485
Converter
(model: R2K-1 or LK1)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
0
0
RS-485 (Modbus RTU)
Ethernet
Communication Adaptor
(model: 72EM2-M4)
Lightning Surge Protector
for RS-485/422
(model: MDP-4R or MD74R) *1
Lightning Surge Protector
for RS-485/422
(model: MDP-4R or MD74R) *1
Lightning Surge Protector
for RS-485/422
(model: MDP-4R or MD74R) *1
Lightning Surge Protector
for RS-485/422
(model: MDP-4R or MD74R) *1
*1. Insert lightning surge protectors recommended in this example if necessary.
■ RS-485 / RS-232-C
■ RS-485 / ETHERNET
RS-485 (Modbus RTU)
ETHERNET
RUN
SEND
FIELD
CNFG
RS-485

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 9 / 26
OPERATION FLOWCHART
R
S
T
R
S
T
R
S
T
R
S
T
R
S
T
R
S
T
R
S
T
R
S
T
R
S
T
RS
ST
RT
RS
ST
RT
R
S
T
∑
0
Current
Active power
Power factor
High tariff
A
W
cos ϕ
kWh
256 512 768
16 272 528 784
32 288
304
544 800
48 816
320 832
∑1 IPPF
∑2 IQ
THDI
∑3 U
U
S
THDI
∑4 THDU
UT THDU
∑
Current
Active power
Voltage
High tariff
A
W
V
kWh
∑
VIEW NO.
(3)
0
Current
Activer power
Power factor
∑1
A
W
PF
Phase 1 Power factor
Phase 2 Power factor
Phase 3 Power factor
Selected energy reading*
cos ϕ
cos ϕ
cos ϕ
∑
Current
Reactive power
Voltage
High tariff
A
var
V
kWh
∑
Current
Apparent power
Frequency
High tariff
A
VA
Hz
kWh
N
---
Neutral current
---
Selected energy reading*
A
RS
ST
RT
1-2 Delta voltage
2-3 Delta voltage
3-1 Delta voltage
Selected energy reading*
V
V
V
1-N Phase voltage
2-N Phase voltage
3-N Phase voltage
Selected energy reading*
V
V
V
1-2 Phase angle
2-3 Phase angle
3-1 Phase angle
Selected energy reading*
Phase 1 Active power
Phase 2 Active power
Phase 3 Active power
Selected energy reading*
W
W
W
Phase 1 Reactive power
Phase 2 Reactive power
Phase 3 Reactive power
Selected energy reading*
var
var
var
Phase 1 Apparent power
Phase 2 Apparent power
Phase 3 Apparent power
Selected energy reading*
VA
VA
VA
Line 1 Current THD
Line 2 Current THD
Line 3 Current THD
Selected energy reading*
%
%
%
N
---
Neutral current THD
---
Selected energy reading*
3P4W 3.00
%
1-2 Delta voltage THD
2-3 Delta voltage THD
3-1 Delta voltage THD
Selected energy reading*
%
%
%
1-N Phase voltage THD
2-N Phase voltage THD
3-N Phase voltage THD
Selected energy reading*
%
%
%
■
DISPLAY
(1)
(2)
(4)
(5)
(6)
(7)
■ HOW TO SWITCH THE DISPLAY VIEWS
Pressing one of buttons switches the view to the one of top among those assigned to
the respective button. Pressing the same button continuously switches it to more selections in turn.
∑1 thr. ∑6 views in the above figure shows the factory setting. These combinations can be changed.
button switches the presently displayed view to its extension views if any.
Pressing the same button continuously switches it to more selections in turn.
Basic and extension views are all listed in the table in the following page.
[Example] Pressing button on the view No. 768 (power factor) switches it to extension views as below.
*Selected with button.
IU PQS PF THD
∑
IU PQS PF THD
∑
Line 1 Current
Line 2 Current
Line 3 Current
Selected energy reading*
R
S
T
A
A
A
MAX
MAX
768 769 770PF
Phase 1 Power factor
Phase 2 Power factor
Phase 3 Power factor
Selected energy reading*
cos ϕ
cos ϕ
cos ϕ
P-MAX
Phase 1 Power factor MAX
Phase 2 Power factor MAX
Phase 3 Power factor MAX
cos ϕ
cos ϕ
cos ϕ
P-MIN
Phase 1 Power factor MIN
Phase 2 Power factor MIN
Phase 3 Power factor MIN
cos ϕ
cos ϕ
cos ϕ
MAX
E PRG ESC
3P4W 3.00
∑5
∑6
∑
Active power
Line 1 Current
Line 2 Current
Line 3 Current
∑
Active power
1-2 Delta Voltage
2-3 Delta Voltage
3-1 Delta Voltage
64
80
W
V
V
V
W
A
A
A
(3) UNIT
(2) MEASURANDS
(1) SYMBOL
(4) LINE 1
(5) LINE 2
(6) LINE 3
(7) LINE 4

54U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-6487-A Rev.12 P. 10 / 26
■BASIC AND EXTENSION VIEW PARAMETERS
∑ view
PRMTR BASIC PARAMETER.
EXTENSION
MAX MIN AVE AVE
HIST1
AVE
HIST2
AVE
HIST3
AVE
HIST4
MAX
AVE
MAX
AVE
(out)
0 Not assigned
1 Current ✓✓✓✓✓✓✓✓
2 Voltage ✓✓✓
3 Active power ✓✓✓✓✓✓✓✓✓
4 Reactive power ✓✓✓✓✓✓✓✓✓
5 Apparent power ✓✓✓✓✓✓✓✓
6 Power factor ✓ ✓
7 Frequency ✓ ✓
8 Current, Line 1 ✓✓✓✓✓✓✓✓
9 Current, Line 2 ✓✓✓✓✓✓✓✓
10 Current, Line 3 ✓✓✓✓✓✓✓✓
11 Neutral current 3P4W 3.00 ✓✓✓✓✓✓✓✓
12 Delta voltage, 1 – 2 ✓ ✓
13 Delta voltage, 2 – 3 ✓ ✓
14 Delta voltage, 3 – 1 ✓ ✓
15 Phase voltage, Phase 1 ✓ ✓
16 Phase voltage, Phase 2 ✓ ✓
17 Phase voltage, Phase 3 ✓ ✓
18 Active power, Phase 1 ✓ ✓
19 Active power, Phase 2 ✓ ✓
20 Active power, Phase 3 ✓ ✓
21 Reactive power, Phase 1 ✓ ✓
22 Reactive power, Phase 2 ✓ ✓
23 Reactive power, Phase 3 ✓ ✓
24 Apparent power, Phase 1 ✓ ✓
25 Apparent power, Phase 2 ✓ ✓
26 Apparent power, Phase 3 ✓ ✓
27 Power factor, Phase 1 ✓ ✓
28 Power factor, Phase 2 ✓ ✓
29 Power factor, Phase 3 ✓ ✓
30 THD, Current, Line 1 ✓
31 THD, Current, Line 2 ✓
32 THD, Current, Line 3 ✓
33 THD, Neutral current 3P4W 3.00 ✓
34 THD, Delta voltage, 1 – 2 ✓
35 THD, Delta voltage, 2 – 3 ✓
36 THD, Delta voltage, 3 – 1 ✓
37 THD, Phase voltage, Phase 1 ✓
38 THD, Phase voltage, Phase 2 ✓
39 THD, Phase voltage, Phase 3 ✓
40 Phase angle between phase voltages, 1 – 2
41 Phase angle between phase voltages, 2 – 3
42 Phase angle between phase voltages, 3 – 1
100 Active energy, high tariff, incoming
101 Reactive energy, high tariff, LAG
102 Apparent energy, high tariff
103 Active energy, high tariff, outgoing
104 Reactive energy, high tariff, LEAD
105 Reactive energy, high tariff, incoming/LAG
106 Reactive energy, high tariff, incoming/LEAD
107 Reactive energy, high tariff, outgoing/LAG
108 Reactive energy, high tariff, outgoing/LEAD
109 Energy count time, high tariff
110 Active energy, low tariff, incoming
111 Reactive energy, low tariff, LAG
112 Apparent energy, low tariff
113 Active energy, low tariff, outgoing
114 Reactive energy, low tariff, LEAD