LSMT2

ES-1954 Rev.6

Specifications subject to change without notice.

MODBUS COMMUNICATION

Standard: Conforms to RS-485, EIA

Baud rate: 1200, 2400, 4800, 9600, 19.2k bps

selectable (front)

Communication: Half-duplex, asynchronous, no

procedure

Protocol:

Modbus RTU

Transmission distance: 500 meters max.

Transmission media: shielded twisted-pair cable

(CPEV-S 0.9 dia.)

Refer to the Modbus Protocol Reference Guide (EM-

5650) for supported functions.

INPUT & OUTPUT

■INPUT

•Voltage Input (must be balanced for 3-phase)

Operational range

Voltage & active/reactive power: 0 – 110% of rating

Power factor & frequency: 90 – 110% of rating

Overload capacity: 200% of rating for 10 sec.,

120% continuous

Input burden: ≤0.2VA/phase for 110V AC

≤0.3VA/phase for 220V AC

≤0.5VA/phase for 380V AC

•Current Input (can be unbalanced for 3-phase)

Operational range

Current & active/reactive power: 0 – 120% of rating

Power factor: 20 – 120% of rating

Overload capacity: 4000% of rating for 1 sec., 2000%

for 4 sec., 120% continuous

Input burden: ≤0.3VA/phase

■OUTPUT

•DC Current

Load resistance

4 – 20mA

: 600 (Ω maximum)

0 – 1mA

: 10k

•DC Voltage

Load resistance

0 – 10V

: 1000 (Ω minimum)

0 – 5V

: 1000

1 – 5V

: 1000

P. 2 / 10

2.5

5A

0

5

•Voltage

0

150

300V

0

12

4

■I/O CHARACTERISTICS

•Current

20

OUT mA

INP

10

OUT V

INP

500

0

1000W

+1000W

0

-1000

5

•Watt

0

500

0

1000W

+1000W

0

-1000

12

4

0

1000var

(LAG)

1000

(LEAD)

5

•Var

0

0

1000var

(LAG)

1000

(LEAD)

12

4

1

0.5

(LAG)

0.5

(LEAD)

5

•Power Factor

0

1

0.5

(LAG)

0.5

(LEAD)

12

4

55

65Hz

45

5

•Frequency

0

55

65Hz

45

12

4

When the input voltage is zero or the current is the twentieth or less of

the rating, the output is either equivalent to power factor 1 or

0% or less (selectable).

When the input voltage is zero or the current is the twentieth or less of

the rating, the output is either equivalent to power factor 1 or

0% or less (selectable).

When the input voltage is the fifth or less of the rating, the output

is equivalent to the input frequency – 2Hz.

20

OUT mA

INP

10

OUT V

INP

10

OUT V

INP

10

OUT V

INP

20

OUT mA

INP

0

1000

1000var

0

0

1000

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

5

•Var for Bidirectional Current

0

10

OUT V

INP

0

1000

1000var

1000

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

12

4

20

OUT mA

INP

11

00

0

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

5

0

10

OUT V

INP

11

00

0

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

12

4

20

OUT mA

INP

11

00

00.5

0.5

0.5

0.5

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

5

0

10

OUT V

INP

11

00.5

0.5

0

00.5

0.5

(LEAD)

REVERSE FLOW

DIRECT FLOW

(LAG)

(LEAD)

(LAG)

12

4

20

OUT mA

INP

20

OUT mA

INP

•Power Factor for Bidirectional Current

20

OUT mA

INP

10

OUT V

INP