MicroLogic Trip Unit Commands

List of MicroLogic Trip Unit Commands and Error Codes

List of Commands

The following table lists the available MicroLogic trip unit commands, their corresponding command codes and user profiles. Follow the command execution procedures accordingly Executing a Command.

Command	Command code	User profile
Long-time protection Long-Time Protection	45192	Administrator
Short-time protection Short-Time Protection	45193	Administrator
Instantaneous protection Instantaneous Protection	45194	Administrator
Ground-fault protection Ground-Fault Protection	45195	Administrator
Neutral protection Neutral Protection	45197	Administrator
Jam protection Jam Protection	45448	Administrator
Underload protection Underload Protection	45449	Administrator
Unbalance protection Unbalance Protection	45450	Administrator
Long-start protection Long-Start Protection	45451	Administrator
Acknowledge a latched output Acknowledge a Latched Output	46216	Administrator or Operator
Acknowledge a trip Acknowledge a Trip	46217	Administrator
Set up ENVT presence Set Up ENVT Presence	46472	Administrator
Reset minimum/maximum Reset Minimum/Maximum	46728	Administrator or Operator
Start/stop synchronization Start/Stop Synchronization	46729	Administrator or Operator
Power flow sign configuration Power Flow Sign Configuration	47240	Administrator
Power factor sign configuration Power Factor Sign Configuration	47241	Administrator
Energy accumulation mode configuration Energy Accumulation Mode Configuration	47242	Administrator
Current demand configuration Current Demand Configuration	47243	Administrator
Power demand configuration Power Demand Configuration	47244	Administrator
Set up nominal voltage Vn display Set Up Nominal Voltage Vn Display	47245	Administrator

Error Codes

Error codes generated by MicroLogic trip units are the generic error codes Result of the Command.

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.

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

Event Commands

Acknowledge a Latched Output

The user can read the SDx module outputs parameters from register 9801 to 9810 Configuration of the SDx Module.

To acknowledge a latched output, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	46216	A/E	Command code = 46216
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 or Operator user profile password
0x1F45	8006	–	–	INT16U	1–2	A/E	1 = relay 1, 2 = relay 2

Acknowledge a Trip

To acknowledge a trip, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	46217	A/E	Command code = 46217
0x1F40	8001	–	–	INT16U	10	A/E	Number of parameters (bytes) = 10
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

Measurement Configuration Commands

Set Up ENVT Presence

The user can read the ENVT (External Neutral Voltage Tap) presence parameters at register 3314 System Type.

To set up ENVT presence, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	46472	E	Command code = 46472
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	0 = ENVT is not present. 1 = ENVT is present.

Reset Minimum/Maximum

The reset minimum/maximum command resets the minimum values of real-time measurements (registers 1300 to 1599) and the maximum values of real-time measurements (registers 1600 to 1899) Minimum/Maximum Values of Real-Time Measurements.

The reset minimum/maximum command resets the energy measurements (registers 2000 to 2025) Energy Measurements.

The reset minimum/maximum command resets the peak demand measurements (registers 2200 to 2237) Demand Measurements.

The user can read the minimum and maximum values of current, voltage, and frequency measurements and the corresponding dates from register 29780 to 29827 Minimum/Maximum V_AB Voltage Measurements.

The user can read the dates of the reset minimum/maximum command from register 2900 to 2929 Minimum/Maximum Measurements Reset Time.

To reset minimum/maximum values of measurements, the user must set up the command registers the following way:

Address	Register	Type	Range	A/E	Bit	Description
0x1F3F	8000	INT16U	46728	–	–	Command code = 46728
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 or Operator user profile password
0x1F45	8006	INT16U	–	–	–	Reset minimum/maximum of metering variables: To reset the metering variable, set the bit to 1. To keep the current values, set the bit to 0.
				A/E	0	Reset minimum/maximum current (I_A, I_B, I_C, I_N, Imax, Ig, IΔn, Iavg, and Iunbal)
				E	1	Reset minimum/maximum voltage (V_AB, V_AC, V_BC, V_AN, V_BN, V_CN, VavgL-L, VavgL-N, and Vunbal)
				E	2	Reset minimum/maximum power (active power, reactive power, apparent power, and distortion power)
				E	3	Reset minimum/maximum power factor and cosϕ
				E	4	Reset minimum/maximum total harmonic distortion (THD)
				E	5	Reset peak of current demand
				E	6	Reset peak of active power, reactive power, and apparent power demand
				E	7	Reset minimum/maximum frequency
				E	8	Reset minimum/maximum thermal image (motor application only)
				E	9	Reset energy (active, reactive, apparent)
				–	10–15	Reserved

Start/Stop Synchronization

The start/stop synchronization command is used to start or stop the calculation of the current or power demand. The first command starts the calculation, the next command updates the value of current or power demand, and then restarts the calculation. The time period between 2 commands must be less than 1 hour.

To start/stop synchronization, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	46729	E	Command code = 46729
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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 or Operator user profile password
0x1F45	8006	–	–	INT16U	–	E	Start/stop synchronization = 1

Power Flow Sign Configuration

The user can read the power flow sign configuration at register 3316 Power Flow Sign.

To set the power flow sign parameters, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47240	E	Command code = 47240
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	Power flow sign: 0 = the active power flows from upstream (top) to downstream (bottom) (factory setting). 1 = the active power flows from downstream (bottom) to upstream (top).

NOTE: The setting of the power flow sign can reset the content of the energy measurement registers excluding the cumulative energy measurements.

Power Factor Sign Configuration

The user can read the power factor sign configuration at register 3318 Power Factor Sign.

To set the power factor sign parameters, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47241	E	Command code = 47241
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	0–2	E	Sign convention for the power factor and the fundamental power factor (cosϕ): 0 = IEC convention 2 = IEEE convention (factory setting)

Energy Accumulation Mode Configuration

The user can read the energy accumulation mode configuration at register 3324 Energy Accumulation Mode.

To set the energy accumulation mode parameters, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47242	E	Command code = 47242
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	Energy accumulation mode: 0 = absolute accumulation (factory setting) 1 = signed accumulation

Current Demand Configuration

The user can read the duration of the current demand calculation window at register 3352 Demand Time.

The user can read the current demand parameters from register 2200 to 2207 Current Demand.

To start current demand, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47243	E	Command code = 47243
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	–	Min	INT16U	5–60	E	Duration of the current demand calculation window, adjustable in step of 1. The factory setting is 15 minutes (sliding).

Power Demand Configuration

The user can read the power demand calculation method from register 3354 to 3355 Demand Time.

The user can read the power demand parameters from register 2224 to 2237 Active Power Demand.

To start power demand, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47244	E	Command code = 47244
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	–	Min	INT16U	0–5	E	Power demand calculation method (window type): 0 = sliding 2 = fixed 5 = synchronized to communication The factory setting is 0 (sliding).
0x1F46	8007	–	Min	INT16U	5–60	E	Duration of the power demand calculation window, adjustable in step of 1. The factory setting is 15 minutes.

Set Up Nominal Voltage Vn Display

The user can read the nominal voltage at register 9616 Nominal Voltage.

To set the nominal voltage Vn display parameters, the user must set up the command registers the following way:

Address	Register	X	Unit	Type	Range	A/E	Description
0x1F3F	8000	–	–	INT16U	47245	E	Command code = 47245
0x1F40	8001	–	–	INT16U	12	E	Number of parameters (bytes) = 12
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	–	V	INT16U	0–65535	E	Nominal voltage Vn (factory setting = 400 V)