MicroLogic Trip Unit Protection Commands

Long-Time Protection

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

To set the long-time protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45192	Command code = 45192
0x1F40	8001	–	–	INT16U	18	Number of parameters (bytes) = 18
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTETSTRING	–	Password of the command: Administrator user profile password
0x1F45	8006	1	A	INT16U	–	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	tr time delay (distribution application only) tr = 500, 1000, 2000, 4000, 8000, 16000 ms
0x1F47	8008	–	–	INT16U	5–30	Motor class (motor application only) Possible values = 5, 10, 20, 30 s
0x1F48	8009	–	–	INT16U	1–2	Cool fan (motor application only) 1 = auto, 2 = motor

Short-Time Protection

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

To set the short-time protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45193	Command code = 45193
0x1F40	8001	–	–	INT16U	16	Number of parameters (bytes) = 16
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTETSTRING	–	Password of the command: Administrator user profile password
0x1F45	8006	10	–	INT16U	⁽¹⁾	Isd coefficient, adjustable in steps of 5. Isd pick-up value = (Ir) x (Isd coefficient) / 10
0x1F46	8007	1	ms	INT16U	0–400	tsd time delay tsd= 0, 100, 200, 300, 400 ms If tsd = 0 ms, then I²t must be Off.
0x1F47	8008	–	–	INT16U	0–1	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 registers 8774 to 8783 Instantaneous Protection Parameters.

To set the instantaneous protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45194	Command code = 45194
0x1F40	8001	–	–	INT16U	12	Number of parameters (bytes) = 12
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	10	–	INT16U	⁽¹⁾	Ii coefficient, adjustable in steps 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 registers 8784 to 8793 Ground-Fault Protection Parameters.

To set the ground-fault protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45195	Command code = 45195
0x1F40	8001	–	–	INT16U	16	Number of parameters (bytes) = 16
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	100	–	INT16U	⁽¹⁾	Ig coefficient, adjustable in steps 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	tg time delay tg = 0, 100, 200, 300, 400 ms If tg = 0 ms, then I²t must be Off.
0x1F47	8008	–	–	INT16U	0–1	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 steps 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 registers 8794 to 8803 Earth-Leakage Protection Parameters.

To set the earth-leakage protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45196	Command code = 45196
0x1F40	8001	–	–	INT16U	14	Number of parameters (bytes) = 14
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	1	mA	INT16U	0–FFFF	Reserved
0x1F46	8007	1	ms	INT16U	0–1000	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 registers 8916 to 8919 Neutral Protection Parameters.

To set the neutral protection registers, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45197	Command code = 45197
0x1F40	8001	–	–	INT16U	12	Number of parameters (bytes) = 12
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	–	–	INT16U	0–3	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 as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45448	Command code = 45448
0x1F40	8001	–	–	INT16U	16	Number of parameters (bytes) = 16
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	–	–	INT16U	0–1	Activation: 0 = Off, 1 = On
0x1F46	8007	10	–	INT16U	10–80	Ijam coefficient, adjustable in steps of 1. Ijam pick-up value = (Ir) x (Ijam coefficient) / 10
0x1F47	8008	1	s	INT16U	1–30	tjam time delay

Underload Protection

The underload protection is available for motor application only.

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

To set the underload protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45449	Command code = 45449
0x1F40	8001	–	–	INT16U	16	Number of parameters (bytes) = 16
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	–	–	INT16U	0–1	Activation: 0 = Off, 1 = On
0x1F46	8007	100	–	INT16U	30–90	Iunderload coefficient, adjustable in steps of 1. Iunderload pick-up value = (Ir) x (Iunderload) / 100
0x1F47	8008	1	s	INT16U	1–200	tunderload time delay

Unbalance Protection

The unbalance protection is available for motor application only.

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

To set the unbalance protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45450	Command code = 45450
0x1F40	8001	–	–	INT16U	14	Number of parameters (bytes) = 14
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	1	%	INT16U	10–40	Iunbal coefficient
0x1F46	8007	1	s	INT16U	1–10	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 registers 8912 to 8915 Long-Start Protection Parameters.

To set the long-start protection parameters, the user must set up the command registers as follows:

Address	Register	X	Unit	Type	Range	Description
0x1F3F	8000	–	–	INT16U	45451	Command code = 45451
0x1F40	8001	–	–	INT16U	16	Number of parameters (bytes) = 16
0x1F41	8002	–	–	INT16U	5121	Destination = 5121 (0x1401)
0x1F42	8003	–	–	INT16U	1	Security type of the command
0x1F43– 0x1F44	8004– 8005	–	–	OCTET STRING	–	Password of the command: Administrator user profile password
0x1F45	8006	–	–	INT16U	0–1	Activation: 0 = Off, 1 = On
0x1F46	8007	10	–	INT16U	10–80	Ilongstart coefficient, adjustable in steps of 1. Ilongstart pick-up value = (Ir) x (Ilongstart coefficient) / 10
0x1F47	8008	1	s	INT16U	1–200	tlongstart time delay