Yokogawa PR300 Operating Manual

Startup
Manual

Thank you for purchasing the PR300.
This manual describes the installation and wiring procedures of the
PR300. The electronic manuals are also provided on the accompanying
CD in addition to this manual. Read them along with this manual. To en­sure correct use, be sure to read the PR300 Power and Energy Meter
User’s Manual (IM 77C01E01-01E) thoroughly before beginning opera­tion.

Printed manuals (Electronic manuals [PDF files] are also provided on the accompanying CD.)

Model PR300 Power and Energy Meter Startup Manual <Installation>
IM 77C01E01-02E (This manual)

Model PR300 Power and Energy Meter Startup Manual <Initial Setup Operations> :
IM 77C01E01-03E

Electronic manuals (PDF files)

Model PR300 Power and Energy Meter User’s Manual :
IM 77C01E01-01E

Model PR300 Power and Energy Meter Communication Interface User’s Manual :
IM 77C01E01-10E

Please keep this manual for future reference.

Checking the Package

Verify the package as explained below before starting to use the product.
Should the delivered product be wrong or the package be missing any
item, contact the vendor from which you purchased the product.

Checking the Model and Suffix Codes

The PR300 bears a nameplate. Confirm that “MODEL” and “SUFFIX”
(suffix codes) shown on the nameplate agree with those of the product or­dered.

Model

PR300
Phase and

wire system

Input voltage/
input current

Additional input
and output function

Communication
function

Optional measuring
function

Power supply
Phase indication format

*1 Can be used only when the voltage is in a state of equilibrium. In cases where “Three-phase four-wire system (2.5 element)” is

specified, the input current specification of 1 A AC is not applicable.
*2 Set the voltage range (150 V, 300 V, or 600 V) according to the rated input voltage to be measured.
*3 For Ethernet communication, the RS-485 communication interface is exclusively for the Ethernet-serial gateway function.

Suffix Codes

- -6 -0

-3

-4

-5
1
2
0
1
2
3
0
3
0
3

-6
A
R

-0

Model PR300
Power and Energy Meter
<Installation>

:

IM 77C01E01-02E

3rd Edition: June 2008 (YK)

Description

Power and Energy Meter

Universal three-phase three-wire system

(single-phase two-wire, single-phase three-wire, and three­phase three-wire systems)

Universal three-phase four-wire system

(single-phase two-wire, single-phase three-wire, three-phase
three-wire, and three-phase four-wire systems)

Three-phase four-wire system (2.5 element)

Universal voltage input *2 (150 V, 300 V, 600 V) / 1 A

Universal voltage input

1 digital input

1 digital input, 1 analog output

1 digital input, 1 pulse output

1 digital input, 1 analog output, 1 pulse output

RS-485 communication

RS-485 communication, Ethernet communication

None

Demand measurement (1 demand alarm output)

100-240 V AC ±10% (50/60 Hz) or 130-300 V DC ±15%

A, B, and C indications

R, S, and T indications

Always 0

*2

(150 V, 300 V, 600 V) / 5 A

*1

*3

Network Solutions Business Division

2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: [phone] Facsimile: [phone]

Record the parameter settings of the PR300 on MEMO column in
Appendix 4, “Parameter List” of the user’s manual (IM 77C01E01­01E) provided on the accompanying CD.
Note that in the case of a failure, the parameter settings set to the
failed product cannot be restored.

Serial Number (NO.)

Also inform this number shown in “NO.” on the nameplate when con­tacting the vendor from which you purchased the PR300.

Checking the Accessories

JIS/ANSI-mounting kit

Bezel (1)

DIN-mounting brackets

(for DIN 96-square instrument
panel mounting)

Shorting bar Tag number labels Startup manuals

(for RS-485 communication
termination)

Manuals for the PR300

(This CD contains all manuals
related to the PR300.)

Panel-mounting
bracket (1)

Dust cover Terminal cover

(with 1 fixing screw)

Panel-mounting bolts (2)

Bracket-fixing screws (2)

Nuts (2)

Flat washers (2)

Spring washers (2)

(with 3 fixing screws)

(Installation/Initial Setup Operations)

Model PR300

Pow

<Installation>

er and Ener

gy Meter

M

odel PR300

Pow

<Initial S

er and Energy Meter

etup

O

p

erations>

Safety Precautions

WARNING

●

Install the PR300 in the secondary side of the exsting breaker.

●

When installing the PR300, provide spacing of 50 mm or more
between each face of the PR300 body and the instrument next
to the PR300 or between each face and the wall surface.

NOTE

● Do not install the PR300 in the following types of environ­ments, as they may cause the PR300 to malfunction or fail.
Avoid sites:

exposed to significant shock or vibration; where corrosive
gases are present; where large amounts of dust are present;
exposed to water; exposed to direct sunlight; outside; at
altitudes above 2000 m.

● The PR300 mounting position is for vertical panels only.

WARNING

● As there is a danger of electric shock, turn off the power sup­ply and check that the cables to be connected are not con­ducting electricity before carring out the wiring procedure.

● For safety, be sure to install a circuit breaker switch that con­forms to IEC 60947 near the PR300 so as to be operated eas­ily, and clearly indicate that the device is used to de-energize
the PR300.

● The wiring procedure for the PR300 should be carried out by
a qualified person (an electrician etc.) with knowledge of
electrical matters and who has actual experience.

● Install a current transformer (CT) inside a panel when using a
conduit for wiring.

● Use the UL Listed Panel only for the panel on which the
PR300 is installed.

● If the voltage is below 600 V AC, it is possible to connect the
PR300 directly without using a voltage transformer (VT) and
if the current is below 5 A AC, it is possible to do so without
using a current transformer (CT). However, in order to use
the PR300 safely, the use of VT and CT is recommended.
Use the UL-approved VT and CT for the PR300.

● Perform wiring for the voltage and current input in the same
circuit.

● Check the following before turning on the power. Using the
PR300 beyond the stated specifications may cause it to heat
up and burn out.

• Check that the power supply voltage, input voltage, and input

current values to be applied to the PR300 agree with its
specifications.

• Check that the external wiring is connected to the terminals in

accordance with the specifications.

● Do not touch the screws in locations (a) to (f) shown in the
wiring diagrams. They are an essential part of the structure
of the PR300. Loosening or tightening them may result in a
malfunction or failure of the PR300.

● Be sure to attach the terminal cover to prevent electric shock
(refer to Chapter 3, “Attaching the Dust Cover and Terminal
Cover”).

NOTE

When attaching the terminal cover

• Since the terminal cover of PR300 has the structure of

preventing electric shock, the terminal cover cannot be
attached after completing all wiring. Refer to Chapter 3,
“Attaching the Dust Cover and Terminal Cover” before wiring.

Carry out the wiring referring to the diagrams in Sections 2.1 to 2.6. The
wiring for voltage input, current input, and power supply is M4 screw termi­nal connection. For other wiring it is M3 screw terminal connection. The
connector for connecting to the Ethernet is RJ45.
Use strand wires for the wiring. Wiring cables with a nominal cross-sec­tional area of 1.25 mm2 or thicker are recommended for voltage/current in­put and power supply; cables with a nominal cross-sectional area of 0.5
mm2 or thicker are recommended for other signals. Durable good-contact
ring tongue crimping terminals are recommended to use.

Ring tongue terminal

ød

A

F

Spade tongue terminal

ød

A

FB

Applicable
terminals

M4
M3

Applicable
terminals

M4
M3

ød

(mm)

4.4 max.

3.3 max.

Recommended
tightening torque

7.0 max.

5.8 max

1.2 N•m

0.6 N•m

A

(mm)

7.8 max.

6.7 max.

Applicable wire size

1.04 to 2.63 mm

0.25 to 1.65 mm

F

(mm)

(mm)

4.7 max.

1. Installation

1.1 Installation with the ANSI 4-inch Round Form

The PR300 can be installed so that it handles ANSI 4-inch round form or
JIS 110-square instruments panel cutouts by attaching the “JIS/ANSI­mounting kit” accessory.

1.1.1 External Dimensions

Unit: mm

(109)

Unit: mm

[approx. inch]

110

110

Bezel

22
2

23

1.1.2 Panel Cutout Dimensions

ANSI

[1.688±0.015]

[1.688±0.015]

JIS

42.9±0.4

[1.688±0.015]

42.9±0.4

42.9±0.4

ø101.6

[ø4.000]

160 min.

[6.299 min.]

45±0.3 45±0.3

45±0.3

45±0.3

Normal Allowable Deviation=±(Value of JIS B 0401-1998 tolerance grade IT18) / 2

ø101

160 min.

(126.5)

104.5 1.5
Dust cover

Terminal cover

2-M5
1 to 10
(Acceptable panel thickness for mounting)

42.9±0.4

[1.688±0.015]

160 min.

[6.299 min.]

ø7.9
[ø0.312]

ø6.5

160 min.

B

2

2

109

1

1.1.3 Mounting Method

Set the direction of the panel-mounting bracket.

1

The diagram below shows the front of the bracket (the side into which the
panel-mounting bolt is inserted). Rotating the bracket 90 makes the bracket
compatible with either ANSI or JIS panel cutouts. Set the bracket to either
the ANSI or JIS mark according to which type of panel you are installing, as
shown in the diagram.

Front of the bracket

Rotate 90

Front of the bracket

ANSI JIS

Insert two panel-mounting bolts into the front of the panel-mounting bracket as

2

shown in the diagram.

Fix the panel-mounting bracket securely to the back of the PR300 with two

3

bracket-fixing screws as shown in the diagram.

(recommended tightening torque: 0.4 N•m)

4

Attach the bezel from the front of the PR300.

Bezel (standard accessory)

4

2

3

PR300

Panel-mounting bolt
(standard accessory: 2 bolts)

Panel-mounting bracket
(standard accessory)

Insert the PR300 from its rear

5

through the mounting cutout in the

2

Bracket-fixing screw
(standard accessory: 2 screws)

3

6

panel as shown in the diagram.

Panel-mounting bolt

5

Flat washer, spring washer, and nut
(standard accessory: 2 of each)

Secure the PR300’s panel-mounting bolts by tightening them with the washers and nuts.

6

(recommended tightening torque: 2.0 N•m)

1.2

Installation with the DIN 96-square Instrument Size

1.2.1 External Dimensions

(124.5) (109)

110

96

96

Mounting bracket
(2 places)

2

12.3

112.2

1.5

Dust cover

Terminal cover

1 to 10
(Acceptable panel thickness for mounting)

6

Unit: mm

109

1.2.2 Panel Cutout Dimensions

+0.8

92

+0.8

92

0

(68)

Normal Allowable Deviation=±(Value of JIS B 0401-1998 tolerance grade IT18) / 2

(68)

0

160 min.

160 min.

1.2.3 Mounting Method

Insert the PR300 from its rear through the

1

1

mounting cutout in the panel as shown in
the diagram.

Affix the mounting brackets to the left and

2

right sides of the PR300. Secure the
brackets to the PR300 by tightening the
screws in the end of the mounting brackets
with a screwdriver as shown in the
diagram.

(recommended tightening torque: 0.4 N•m)

2

2

2. Wiring

2.1 Single-phase two-wire system

Power-source
side

12

k

K

CT

L

l

Load side

2.2 Single-phase three-wire system

Power-source
side

1N2

k

K

CT

L

K

l

L

Load side

NOTE

Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.

u

U

Fuse

v

V

VT

NOTE

Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.

k

CT

l

U

Fuse

u

v

V

v

V

u

U

VT

c

1

a

1S
1L

2

4

6

P1
P2

8

b

a

1S
1L

2

2S
2L

4

6

P1
P0

8

P2

b

11
12

3

13

5

14
15

7

16

9

10

c

1

11
12

3

13

5

14
15

7

16

9

10

Unit: mm

Mounting bracket
(standard accessory: 2 brackets)

Refer to

e

Lⴙ

23

Nⴚ

24

f

PE

25

e

Lⴙ

23

Nⴚ

24

f

PE

25

“Other Wiring”

Power supply

Power supply voltage
100-240V AC±10% or
130-300V DC±15%

Refer to
“Other Wiring”

Power supply

Power supply voltage
100-240V AC±10% or
130-300V DC±15%

17
18
19
20
21
22

d

17
18
19
20
21
22

d

2.3 Three-phase three-wire system

Power-source
side

123

A

(R)B(S)C(T)

K

k

CT

L

l

Load side

K

L

NOTE

Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.

k

CT

l

u

U

Fuse

v

V

v

V

u

U

VT

c

1

a

1S
1L

2

3S
3L

P1
P2
P3

3

4

5

6

7

9

8

b

10

17

11

e

18

12
13
14
15
16

Lⴙ

19

23

Nⴚ

20

24

21

f

22

PE

25

d

Power supply voltage
100-240V AC±10% or
130-300V DC±15%

2.4 Three-phase four-wire system

Power-source
side

N1

A

(R)B(S)C(T)

K

k

CT

L

lk

Load side

23

K

CT

L

l

NOTE

Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.

K

k

CT

L

l

U

Fuse

u

v

V

u

U

v

V

u

U

v

V

VT

c

1

a

1S
1L

23

2S
2L

45

3S
3L

6

P1
P0
P2

P3

7

9

8

b

10

17

11

e

18

12
13
14
15
16

Lⴙ

19

23

Nⴚ

20

24

21

f

22

PE

25

d

Power supply voltage
100-240V AC±10% or
130-300V DC±15%

2.5 Three-phase four-wire system (2.5 element)

Power-source
side

N1

A

(R)B(S)C(T)

K

k

CT

L

lk

Load side

23

K

CT

L

l

NOTE

Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.

K

k

CT

L

l

U

Fuse

u

V

v
v

V

u

U

VT

c

1

a

1S
1L

23

2S
2L

45

3S
3L

6

P1
P0
P3

7

9

8

b

10

17

11

e

18

12
13
14
15
16

Lⴙ

19

23

Nⴚ

20

24

21

f

22

PE

25

d

Power supply voltage
100-240V AC±10% or
130-300V DC±15%

2.6 Other Wiring

Analog output

+

11

12

Pulse output

13

14

Demand alarm output

15

16

−

+

−

ALM+

ALM−

RJ45
connector

10BASE-T
100BASE-TX

Output signal:
4 to 20mA DC

Contact capacity:
30V DC, 200mA
(resistive load)

Contact capacity:
30V DC, 200mA
(resistive load)

Ethernet communication

Color
Description

Color
Description

Switching between 10BASE-T and
100BASE-TX takes place automatically.
Switching between half and full duplex
takes place automatically.

Link LED
Off
Stopped

Active LED
Off
Stopped

1

a

23

45

6

7

9

8

b

10

Orange
10Mbps

Orange
Half duplex

c

11
12
13
14
15
16

Green
100Mbps

Green
Full duplex

17
18
19
20
21
22

d

*1 If Ethernet communication is used, the RS-485

*2 In the case of the PR300 with the demand

RS-485 communication

17

e

23

24

f

25

communication interface is used specifically for
the Ethernet-serial gateway function.

measuring function, the demand alarm release
is selected.

R

18

19

20

When terminating, short-circuit
terminals 17 and 18 with the
shorting bar

Optional integration
control signal or
demand alarm release

DIⴙ

21

DIⴚ

22

Voltage signal
ON signal : 4.5 to 25V DC
OFF signal : within ±1V DC

Refer to
“Other Wiring”

Power supply

Refer to
“Other Wiring”

Power supply

Refer to
“Other Wiring”

Power supply

TERM

Aⴚ
Bⴙ
SG

R: 120 (built-in)

3.

Attaching the Dust Cover and Terminal Cover

WARNING

As there is a danger of electric shock, do not attach the dust
cover and terminal cover while the wires are live.

• Attach the dust cover before attaching the terminal cover.

• The recommended tightening torque for the screws for attaching the
dust cover and terminal cover is 0.4N•m.

3.1 Attaching the Dust Cover

Insert the two protruding

1

portions on the underside of the
dust cover into the grooves on
the upper side of the PR300 as

Dust cover
(standard accessory)

shown in the diagram below.

Insert into
the
marked
grooves

Secure the dust cover with the screw

2

provided as shown in the diagram below.

(recommended tightening torque: 0.4 N•m)

3.2 Attaching the Terminal Cover

Complete the wiring to the terminals

1

2, 4, 6, 8, 23, 24, and 25, then
secure the terminal cover in the
open state shown in the diagram
below with the two screws provided.

(recommended tightening torque: 0.4 N•m)

*1

*2

Close the terminal cover and secure it

3

with the screw provided as shown in
the diagram below.

(recommended tightening torque:

0.4 N•m)

Complete the wiring to other

2

terminals with the terminal
cover open shown in the
diagram below.

IM 77C01E01-02E 3rd Edition June 20, 2008