DOCA0091EN-08

MicroLogic Trip Unit Protection Commands

Long-Time Protection

The user can read the long-time protection parameters from register 8754 to 8763 Long-Time Protection Parameters.

To set the long-time protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45192

A/E

Command code = 45192

0x1F40

8001

INT16U

18

A/E

Number of parameters (bytes) = 18

0x1F41

8002

INT16U

5121

A/E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

A/E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTETSTRING

A/E

Password of the command: Administrator user profile password

0x1F45

8006

1

A

INT16U

A/E

Ir pick-up value. The Ir range depends on the nominal current In and on the position of the MicroLogic trip unit rotary switch 1 (Ir).

0x1F46

8007

1

ms

INT16U

500–

16000

A/E

tr time delay (distribution application only)

tr = 500, 1000, 2000, 4000, 8000, 16000 ms

0x1F47

8008

INT16U

5–30

A/E

Motor class (motor application only)

Possible values = 5, 10, 20, 30 s

0x1F48

8009

INT16U

1–2

A/E

Cool fan (motor application only)

1 = auto, 2 = motor

Short-Time Protection

The user can read the short-time protection parameters from register 8764 to 8773 Short-Time Protection Parameters.

To set the short-time protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45193

A/E

Command code = 45193

0x1F40

8001

INT16U

16

A/E

Number of parameters (bytes) = 16

0x1F41

8002

INT16U

5121

A/E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

A/E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTETSTRING

A/E

Password of the command: Administrator user profile password

0x1F45

8006

10

INT16U

(1)

A/E

Isd coefficient, adjustable in step of 5.

Isd pick-up value = (Ir) x (Isd coefficient) / 10

0x1F46

8007

1

ms

INT16U

0–400

A/E

tsd time delay

tsd= 0, 100, 200, 300, 400 ms

If tsd = 0 ms, then I2t must be Off.

0x1F47

8008

INT16U

0–1

A/E

Type of protection: 0 = I2t On, 1 = I2t Off

For motor application, tsd = 0 ms and I2t is Off (fixed values).

(1) For distribution application, the range is 15–100. For motor application, the range is 50–130.

Instantaneous Protection

The user can read the instantaneous protection parameters from register 8774 to 8783 Instantaneous Protection Parameters.

To set the instantaneous protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45194

A/E

Command code = 45194

0x1F40

8001

INT16U

12

A/E

Number of parameters (bytes) = 12

0x1F41

8002

INT16U

5121

A/E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

A/E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

A/E

Password of the command: Administrator user profile password

0x1F45

8006

10

INT16U

(1)

A/E

Ii coefficient, adjustable in step of 5.

Ii pick-up value = (In) x (Ii coefficient) / 10

(1) The Ii coefficient range depends on the circuit breaker size:

  • for 100–160 A, the range is 15–150.

  • for 250–400 A, the range is 15–120.

  • for 630 A, the range is 15–110.

Ground-Fault Protection

The user can read the ground-fault protection parameters from register 8784 to 8793 Ground-Fault Protection Parameters.

To set the ground-fault protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45195

A/E

Command code = 45195

0x1F40

8001

INT16U

16

A/E

Number of parameters (bytes) = 16

0x1F41

8002

INT16U

5121

A/E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

A/E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

A/E

Password of the command: Administrator user profile password

0x1F45

8006

100

INT16U

(1)

A/E

Ig coefficient, adjustable in step of 5. The value is defined by the position of the MicroLogic trip unit rotary switch 2 (Ig).

Ig pick-up value = (In) x (Ig coefficient) / 100

0x1F46

8007

1

ms

INT16U

0–400

A/E

tg time delay

tg = 0, 100, 200, 300, 400 ms

If tg = 0 ms, then I2t must be Off.

0x1F47

8008

INT16U

0–1

A/E

Type of protection: 0 = I2t On, 1 = I2t Off

For motor application, tg = 0 ms and I2t is Off (fixed values).

(1) The Ig coefficient depends on the sensor rating In and the MicroLogic trip unit rotary switch if it exists.

For example, 0 (protection Off) or 0.40 In to In in step of 0.05. The Ig coefficient cannot be set using the command interface when the MicroLogic rotary switch position Ig is Off.

Earth-Leakage Protection

The user can read the earth-leakage protection parameters from register 8794 to 8803 Earth-Leakage Protection Parameters.

To set the earth-leakage protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45196

E

Command code = 45196

0x1F40

8001

INT16U

14

E

Number of parameters (bytes) = 14

0x1F41

8002

INT16U

5121

E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

E

Password of the command: Administrator user profile password

0x1F45

8006

1

mA

INT16U

0–FFFF

E

Reserved

0x1F46

8007

1

ms

INT16U

0–1000

E

tΔn time delay

tΔn = 0, 60, 150, 500, 1000 ms

If IΔn = 0.03 mA, then tΔn = 0 ms

Neutral Protection

The neutral protection is only available when system type in register 3314 is 30 or 41 System Type.

The user can read the neutral protection parameters from register 8916 to 8919 Neutral Protection Parameters.

To set the neutral protection registers, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45197

A/E

Command code = 45197

0x1F40

8001

INT16U

12

A/E

Number of parameters (bytes) = 12

0x1F41

8002

INT16U

5121

A/E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

A/E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

A/E

Password of the command: Administrator user profile password

0x1F45

8006

INT16U

0–3

A/E

Neutral coefficient pickup value

0 = Off

1 = 0.5

2 = 1.0

3 = OSN

Jam Protection

The jam protection is available for motor application only.

The user can read the jam protection parameters from registers 8900 to 8903 Jam Protection Parameters.

To set the jam protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45448

E

Command code = 45448

0x1F40

8001

INT16U

16

E

Number of parameters (bytes) = 16

0x1F41

8002

INT16U

5121

E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

E

Password of the command: Administrator user profile password

0x1F45

8006

INT16U

0–1

E

Activation: 0 = Off, 1 = On

0x1F46

8007

10

INT16U

10–80

E

Ijam coefficient, adjustable in step of 1.

Ijam pick-up value = (Ir) x (Ijam coefficient) / 10

0x1F47

8008

1

s

INT16U

1–30

E

tjam time delay

Underload Protection

The underload protection is available for motor application only.

The user can read the underload protection parameters from register 8908 to 8911 Underload Protection Parameters.

To set the underload protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45449

E

Command code = 45449

0x1F40

8001

INT16U

16

E

Number of parameters (bytes) = 16

0x1F41

8002

INT16U

5121

E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

E

Password of the command: Administrator user profile password

0x1F45

8006

INT16U

0–1

E

Activation: 0 = Off, 1 = On

0x1F46

8007

100

INT16U

30–90

E

Iunderload coefficient, adjustable in step of 1.

Iunderload pick-up value = (Ir) x (Iunderload) / 100

0x1F47

8008

1

s

INT16U

1–200

E

tunderload time delay

Unbalance Protection

The unbalance protection is available for motor application only.

The user can read the unbalance protection parameters from register 8904 to 8907 Unbalance Protection Parameters.

To set the unbalance protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45450

E

Command code = 45450

0x1F40

8001

INT16U

14

E

Number of parameters (bytes) = 14

0x1F41

8002

INT16U

5121

E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

E

Password of the command: Administrator user profile password

0x1F45

8006

1

%

INT16U

10–40

E

Iunbal coefficient

0x1F46

8007

1

s

INT16U

1–10

E

tunbal time delay

Long-Start Protection

The long-start protection is available for motor application only.

The user can read the underload protection parameters from register 8912 to 8915 Long-Start Protection Parameters.

To set the long-start protection parameters, the user must set up the command registers the following way:

Address

Register

X

Unit

Type

Range

A/E

Description

0x1F3F

8000

INT16U

45451

E

Command code = 45451

0x1F40

8001

INT16U

16

E

Number of parameters (bytes) = 16

0x1F41

8002

INT16U

5121

E

Destination = 5121 (0x1401)

0x1F42

8003

INT16U

1

E

Security type of the command

0x1F43–

0x1F44

8004–

8005

OCTET STRING

E

Password of the command: Administrator user profile password

0x1F45

8006

INT16U

0–1

E

Activation: 0 = Off, 1 = On

0x1F46

8007

10

INT16U

10–80

E

Ilongstart coefficient, adjustable in step of 1.

Ilongstart pick-up value = (Ir) x (Ilongstart coefficient) / 10

0x1F47

8008

1

s

INT16U

1–200

E

tlongstart time delay