ABB M10 Series User manual

Motor control and protection unit
M10x parameter description

2 Motor control and protection unit | M10x parameter discription
The information in this document is subject to change without notice and should not be construed as a commitment by ABB.
ABB assumes no responsibility for any errors that may appear in this document.
In no event shall ABB be liable for direct, indirect, special, incidental, or consequential damages of any nature or kind arising
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or hardware described in this document.
This document and parts thereof must not be reproduced or copied without ABB’s written permission, and the contents thereof
must not be imparted to a third party nor be used for any unauthorized purpose. The software described in this document is
furnished under a license and may be used, copied, or disclosed only in accordance with the terms of such license.
All rights reserved.
Copyright © 2016 ABB

M10x Parameter description | Motor control and protection unit 3
Table of contents
General
Target group
Use of warning, caution, information and tip icon
Terminology
Related documentation
Related system version
Document revision history
New features available in enchanced products
Document overview
Motor Information
Motor ID
Motor type
System supply voltage(M102 only)
System frequency
Motor power rating
Motor nominal current (N1)
Motor nominal current (N2)
Motor control
Starter ID (M10x-M only)
Starter type
Startup time
Startup time (N2) (M102 only)
Changeover time (M102 only)
Ramp up time (M102 only)
Ramp down time (M102 only)
Earth fault primary
Internal CT primary
Communication failure delay
Failsafe mode
Feedback
Feedback timeout
External CT used
External CT1 primary
External CT2 primary
External CT secondary
COMMS.
Modbus communication
PROFIBUS DP communication
Control authority
Motor control mode
Motor grouping
Function enable, disable
Group start direction
Group ID (M10x-M only)
Group number
Group start delay
Group stop delay
6
6
6
7
8
8
8
9
10
11
11
11
12
12
12
12
13
14
14
15
19
20
20
20
21
21
22
22
22
23
23
23
24
24
25
26
26
28
29
29
30
30
31
31
31
31
31

4 Motor control and protection unit | M10x parameter discription
32
32
34
35
35
36
36
37
37
38
39
40
41
44
46
46
46
46
47
47
48
49
51
52
52
53
53
54
55
55
55
56
56
57
57
58
58
58
59
60
61
61
61
62
62
63
64
64
64
65
65
Digital inputs
Function
Contact type
Operation delay
Operation
Digital outputs
Function
Start/stop delay
Operation principle
Thermal overload protection (TOL)
Function enable, disable
Thermal mode
Trip class (T6)
Trip class (Te)
Ia/In
TOL alarm level
TOL trip level
TOL reset level
Trip reset mode
TOL bypass enable/disable
Cooling coefficient (Mt6)
Ambient temperature
Staff protection
Function enable, disable
Trip level
Trip delay
Trip reset mode
Phase failure protection
Function enable, disable
Alarm level
Trip level
Trip delay
Trip reset mode
Unbalance protection
Function enable, disable
Alarm level
Trip level
Trip delay
Trip reset mode
Underload protection
Function enable, disable
Alarm level
Trip level
Trip delay
Trip reset mode
Noload protection
Function enable, disable
Alarm level
Trip level
Trip delay
Trip reset mode

M10x Parameter description | Motor control and protection unit 5
Earth fault protection
Function enable, disable
Enable earth fault protection during motor startup
Alarm level
Trip level
Trip delay
Trip reset mode
PTC protection (M102 only)
Function enable, disable
PTC alarm level
PTC trip level
PTC trip delay
PTC reset level
PTC short circuit alarm level
PTC trip reset mode
Undervoltage protection (M102 only)
Function enable, disable
Alarm level
Trip level
Trip delay
Reset level
Trip reset mode
Autorestart function (M102 only)
Function enable/disable
Maximum autoreclose time
Maximum power downtime
Staggered start delay
Start limitation protection
Function enable, disable
Time interval
Number of starts
Long start protection
Function enable, disable
Locked rotor level
Locked rotor delay
Phase sequence protection
Maintenance
Running time alam level
Start number alarm level
Diagnosis information (M10x-P) only)
User definable map (M10-M only)
User definable data (M10x-P only)
MD LED
Color
Function
MD21 display option
66
67
67
67
68
68
68
69
70
70
70
71
72
72
72
73
74
74
74
75
75
75
76
78
79
79
79
80
81
81
81
82
83
83
83
84
85
85
85
86
87
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90
90
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92

6 Motor control and protection unit | M10x parameter discription
General
Target group
This manual provides information on the internal parameters of M10x for the purpose of understanding, engineering, testing,
system integration or commissioning of the product.
Each chapter consists of brief explanations of the functions, the relevant parameters and the parameter descriptions, along
with ranges. Default values of all parameters are listed in appendix: Factory settings for M10x.
Examples and further explanations are provided for user reference in parameterization.
Use of warning, caution, information and tip icon
This publication includes Warning, Caution, and Information icons where appropriate to point out safety related or other important information. It also
includes Tip icons to point out useful hints to the reader. The corresponding symbols should be interpreted as follows:
The electrical warning icon indicates the presence of a hazard that could result in electrical shock.
The warning icon indicates the presence of a hazard that could result in personal injury.
The caution icon indicates important information or warnings related to the concept discussed in the text. It might indicate the
presence of hazard that could result on corruption of software or damage to equipment/property.
The information icon alerts the reader to pertinent facts and conditions.
The tip icon indicates advice on, for example, how to design your project or how to use a certain function
Although Warning notices are related to personal injury, and Caution notices are associated with equipment or property damage, it should be
understood that the operation of damaged equipment could, under certain operational conditions, result in impaired process performance leading to
personal injury or death. It is, therefore, imperative that you comply fully with all Warning and Caution notices.

M10x Parameter description | Motor control and protection unit 7
Terminology
List of terms, acronyms, abbreviations and definitions used in the document:
Abbreviation Term Description
Alarm Alarm is defined as status transition from any state to abnormal state. Status transition
to abnormal state can be data crossing over the pre-defined alarm limit.
DCS Distributed control system High level distributed control system
Hardware hardwiring A control access term describing that the M10x accepts its commands from the
hardwired inputs when the local control authority is enabled.
PCS Process control system High level process control system
PROFIBUS-DP Fieldbus communication protocol with cyclic data transfer (V0)
Modbus Fieldbus communication protocol
Modbus RTU Fieldbus communication protocol
PROFIBUS-DP/V1 Fieldbus communication protocol, extension of PROFIBUS-DP allowing acyclic data
transfer and multi master (V1)
PTC Positive temperature coefficient PTC thermistors are semiconductor elements with a very high positive temperature
coefficient.
RCU Remote control unit Local control unit with pushbutton and indicator to operate a device (eg, motor) from
field level.
Remote fieldbus A control access term describing that the M10x accepts its commands from the fieldbus
inputs when the remote control authority is enabled.
RS485 Communication interface standard from EIA (Electronics Industries Association, USA),
operating on voltages between 0V and +5V. RS-485 is more noise resistant than RS-
232C, handles data transmission over longer distances, and can drive more receivers.
STP Shielded twisted pair A type of cable commonly used for signal transmission.
TOL Thermal overload Protection against overheated caused by overload
Trip A consequence of an alarm activated or an external trip command from another device
to stop the motor or trip the circuit breaker.
MCC Motor control center Common term for a switchgear used for motor control and protection.
SOE Sequence of events A record of events with time stamp.

8 Motor control and protection unit | M10x parameter discription
Related documentation
1TNC 911112 M10x User Guide
1TNC 911507 M10x-P PROFIBUS Protocol Implementation
1TNC 911505 M10x-M Modbus Protocol Implementation
1TNC 911104 MCUSetup User Guide
Related System Version
The content of this document is related to M10x products with the following hardware and firmware version release:
HW FW
M10x-M 24VDC 2.0 3.3
M10x-M 110VAC 1.0 3.3
M10x-M 240VAC 1.0 3.3
M10x-P 24VDC 3.2 5.2
M10x-P 110VAC 1.0 5.2
M10x-P 240VAC 5.2 5.2
MD21 1.0 2.1
MD31 1.0 1.1
Until further notice, this document is also applicable for future firmware versions.
The described functions are designed but may not be fully implemented in all details. Please refer to the release notes regarding
possible restrictions.
Document revision history
Revision Description of change Date
M0201 Initial Edition 10/2003
M0202 Change Earth Fault Setting; Revise the
Terminology of Control Authority; Revise DI
Function Description
04/2008
M0203 Template Changed as per BU Guideline 10/2010
M0204 Released for M10x products with new hardware,
suitable for both M10x-M and M10x-P
01/2013
M0205 Add feedback timeout and DO function 07/2013
M0206 Add in Phase sequence protection and more DO
functions, main switch supervision function. 09/2016

M10x Parameter description | Motor control and protection unit 9
New features available in enhanced products
In comparison with previous firmware and hardware revisions:
General features
1One single type of integrated CT ranging from 0.24~63A replaces all 6 types of CTs in previous products.
2Products with options for 110VAC or 240VAC power supply and DI types are available in addition to 24VDC option.
3Additional SOE function in M102 provides event recorder data up to 256 events with time stamp.
4Products in the same categories are made with the same features and functionalities and are only different in power supply and
communication interface from each type. For example, M101's range of products has identical functionalities regardless of different types
of power supply and interfaces, such as M101-M 24VDC, M101-P 240VAC, etc.
Physical dimension
1Main unit dimension remains the same as previous revision. MDx panel is slightly larger in width and length (both 3mm extra) while cutout
dimension remains the same.
Control features
1Contactor feeder and contactor feeder/RCU are added into starter types.
2Two separate start types are available for two-speed starters. NR_2N is for two-speed motor with separate windings while NR_2N
Dahlander is for Dahlander connection motor.
3Control logic in NR_softstarter and REV_softstarter are modified slightly.
4Control authority feature in M10x-M has been revised to be identical to M10x-P.
Digital inputs and outputs
1All DIs in M10x are configurable and also selectable with NO or NC.
2E-stop, Limit 1, Limit 2, External trip input control definition has been revised.
3More features are added to DOs.
Protection
1Long start protection is available to provide stall protection during motor startup.
2Options are provided to enable or disable TOL protection during motor startup.
3PTC short circuit protection and PTC open circuit protection are available.
Communication
1Additional communication speeds are available for MODBUS: 38400 bps and 57600 bps.
Measuring and monitoring
1Additional running data are monitored, such as current phase unbalance, thermistor resistor, time to TOL trip, time to TOL reset, startup
time, DI status.
2Phase-to-phase instead of phase-to-neutral voltage is directly measured.
Maintenance
1More maintenance features are implemented, including providing number of trips, SOE with time stamp, etc.
Operator panel MDx
1MDx is provided as IP54.
2Color and function of LEDs are selectable.
3Messages on MD21 are selectable.
4Two languages are supported, ie, English and Chinese.
5Parameter setting via MD21 is available.
6Parameter setting port on MDx is mini USB connector in lieu of USB connector.

10 Motor control and protection unit | M10x parameter discription
M10x parameterization can be done from a several laptop/workstation with
MCUSetup software, or via operation panel MD21.
The motor related parameters and the protection function are set based on the
motor manufacturer’s data sheet.
M10x parameterization is mainly classified into the following functions:
Motor information
Motor control
COMMS (communication)
Control authority
Motor grouping
Digital inputs
Digital outputs
TOL protection
Stall protection
Phase failure protection
Unbalance protection
Underload protection
Noload protection
Earth fault protection
PTC protection (M102 Only)
Undervoltage protection & sutorestart (M102 only)
Start limitation protection
Long start protection
Maintenance
Diagnosis information (M10x-P only)
User defined map (M10x-M only)
User defined data (M10x-P only)
MD LED
MD Display option (MD21 only)
Functions are further subdivided into parameters, to be set individually. Above
functions and their related parameters are covered in each of the subsequent
chapters.
Document overview

M10x Parameter description | Motor control and protection unit 11
Motor information
Motor information consists of parameters that mainly reflect the motor ratings.
Parameters involved with the motor Information are as below:
Motor ID
Motor type
System supply voltage (only for M102)
System frequency
Motor power rating
Motor nominal current
Motor nominal current (N2) (only for M102)
Motor ID
Function
Range
Default setting
Related parameters
Description
Motor Type
Function
Range
Default setting
Related parameters
Description
: Motor information
: space ! # $ % & ‘ ( ) + , - . 0… 9 ; = @ A…Z[ ] ^ _ ‘ a…z { }
~
: MOTOR1
: --
:
: Motor information
: 1 = Single phase, 3 = Three phases
: 3 = Three phases
: Motor control/starter type
Phase failure protection/function
Unbalance protection / function
:
A maximum length of 20 characters (ASCII) can be assigned to an identifier to
describe the location or function of the motor.
M10x-P supports only maximum 4 characters (ASCII).
M10x can handle a single- or three-phase AC motor. Based on the number of
phases of the motor, single or three can be selected. For single-phase motors,
the motor current lead or the CT secondary lead (for > 63 A) is passed through L1
phase window of the M10x internal current transformer.
Single phase application is practicable with NR-DOL starter type. Neither
the phase failure protection nor the unbalance protection is available for the
application.

12 Motor control and protection unit | M10x parameter discription
System supply voltage (M102 Only)
Function
Range
Default setting
Related parameters
Description
: Motor information
: 110(1)690V
: 380V
: --
:
: Motor information
: 0.01(0.01)1000kW
: 1.5kW
: Motor information/Motor nominal current
Motor information/Motor nominal current (N2)
:
: Motor information
: 50/60Hz
: 50Hz
: --
:
: Motor information
: 0.08(0.01)63.0A or 0.5-1.0 Iprim or 0.1-1.0 Iprim
: 4A
: Motor information/Motor power rating
Motor control/External CT parameters
:
This parameter is to be selected per system supply design value.
System frequency is a measured parameter when voltage is measured by M10x, for
example a M102 with voltage inputs wired. It is a fixed value when voltage is not
measured, e.g M101.
It is for reference only and does not affect operation of the M10x.
This is the reference data at rated voltage and frequency. The value is given on the
motor rating plate and does not affect operation of the M10x.
This is the rated current In of the motor, at rated load, at rated voltage and frequency.
The value is given on the motor rating plate. The rated current can be set within this
range.
System frequency
Function
Range
Default setting
Related parameters
Description
Motor power rating
Function
Range
Default setting
Related parameters
Description
Motor nominal current (N1)
Function
Range
Default setting
Related parameters
Description

M10x Parameter description | Motor control and protection unit 13
Motor nominal current (N2)
Function
Range
Default setting
Related parameters
Description
N1 setting is related to “External CT primary” and “External CT secondary” settings
under “Motor control.”
Setting range without selecting external CT option is from 0.08-63A. If external CT
is selected, the range is dependent on the primary and secondary of external CT,
ie, If “External CT secondary” is set to 1, the range varies from 0.5 to 1.0 of CT
nominal primary current. If “External CT secondary” is set to 5, the range varies
from 0.1 to 1.0 of CT nominal primary current.
Example: In the case of an external current transformer primary of 100A, the range
varies from 50 to 100A when external CT secondary is selected as 1. The range can
also be from 10-100A if secondary of 5A is selected.
: Motor information
: 0.08(0.01)63.0A or 0.5-1.0 Iprim or 0.1-1.0 Iprim
: 4A
: Motor information/Motor power rating
Motor control/Internal CT primary, external CT parameters
:
This is the rated current In of the motor, at rated load, at rated voltage and
frequency. The value is given on the motor rating plate. The rated current can be set
within this range.
N2 setting is related to “External CT primary” and “External CT secondary” settings
under “Motor control.” This setting is available for two-speed motors where the
second set of CT is required.
The setting range and reading is the same as for N1.
Applicable to both N1&N2In cases of small current measurement (<0.5A) it is
highly recommended to increase the primary wiring turns through internal CT
in order to avoid nuisance current measurement. Refer to relevant parameter
'Internal CT primary winding'.

14 Motor control and protection unit | M10x parameter discription
Motor control function consists of parameters which reflect the configuration of
the motor feeder. For example, the ratings for external current transformers and
contactor feedback supervision are included.
Parameters involved with the starter configuration function are:
Starter ID
Starter type
Startup time
Startup time (N2) (M102 Only)
Changeover time (M102 Only)
Ramp up time (M102 Only)
Ramp down time (M102 Only)
Earth fault primary
Internal CT primary
Communication failure delay
Failsafe mode
Feedback
Feedback timeout
Soft test switch
External CT used
External CT1 primary
External CT2 primary (M102 Only)
External CT secondary
Starter ID (M10x-M Only)
Function
Range
Default setting
Related parameters
Description
: Motor information
: space ! # $ % & ‘ ( ) + , - . 0… 9 ; = @ A…Z[ ] ^ _ ‘ a…z { } ~
: A1
: --
:
The user can name each motor starter to simplify addressing and handling. A
maximum of 20 characters (ASCII) can be assigned.
Motor control

M10x Parameter description | Motor control and protection unit 15
Starter type
Function
Range
Default setting
Related parameters
Description
M10x supports different kinds of motor connections. This parameter needs to be set
according to the type of motor control desired.
More details of M10x starter types are described in the M10x user guide.
NR-DOL: Non reversing direct on line.
NR - Non reversing means the motor runs in only one direction.
When M10x accepts start command, internal relay CCA is closed and remains closed
until stop command is accepted or protection function is active. Internal relay CCB and
CCC has no functions in this application.
Internal relay CCB and CCC has no functions in this application.
NR-DOL/RCU: Non reversing direct on line RCU starter
RCU stands for, remote control unit. This is a starter type where contactors can be
directly hardwired controlled by a control device located near the motor in parallel with
M10x control. In other word, this starter allows motor control by remote control device
even if M10x is not in operation.
When M10x accepts “Start CW” command, internal relay CCA is closed and remains
for one second only. When “Stop” command is accepted or protection is active, CCC
relay is closed to cut the contactor coil circuit and remains for one second only.
The wiring of the self-auxiliary contact across the start command latches the contactor.
: Motor control
: M101: NR-DOL, NR-DOL/RCU, REV-DOL, REV-DOL/RCU,
Feeder, Contactor feeder, Contactor feeder/RCU
M102: NR-DOL, NR-DOL/RCU, REV-DOL, REV-DOL/RCU,
Actuator, NR-S/D, NR-2N, NR_2N Dahlander, Autotransformer,
NR_softstarter, REV_softstarter, Feeder, Contactor feeder,
Contactor feeder/RCU
: NR-DOL
: Motor control/Failsafe mode
Motor control/N2 parameters (NR-2N, NR_2N Dahlander)
Motor control/S/D parameters (NR-S/D)
Motor control/Autotransformer parameters
Motor control/Ramp up/downtime
:

16 Motor control and protection unit | M10x parameter discription
REV-DOL: Reversing direct on line
REV- Reversing starter supports the motor running in both directions (clockwise
CW, counter clockwise CCW).
When M10x accepts start 1 command, internal relay CCA is closed to start motor
running in one direction and remains closed until stop command is accepted or
protection function is active. Same operation is followed the opposite direction after
accepting start 2 command. Possible changing direction sequence is as follows:
Start 1- Stop-Start2
Start 2- Stop-Start1
REV-DOL/RCU: Reversing direct on line RCU starter
In addition to NR-DOL/RCU, this starter supports the motor running in both
directions.
Actuator (M102 only): Actuator starter is for controlling valves, dampers and
actuators by using limit switches.
The limit switch stops the motor when activated, after the motor is running in one
direction. The activated limit switch message is then read in M10x and only Start 2
command for reserve direction is allowed.
In case of an actuator starter with torque sensor, the torque switch associated
with the sensor is used to stop the motor. The limit switch limits starting to the
respective direction and indicates the respective stop position.
One of the digital inputs can be used as input for the torque sensor. If the torque
activates before the limit switch, the motor is tripped with a message: DI trip.
NR-S/D (M102 only ): Reduced voltage starts in star and runs the motor in delta
after transition conditions are met.
Star-delta starters are used mainly to restrict the starting current of a motor due
to supply limitations. The motor is started with the winding connected in star and
transferred to delta after the changeover time. Starting at a lower voltage also
reduces shocks on the motor coupling, belts and gear mechanisms. Starting
current and the torque are reduced to 1/3 of the DOL value. However, it must be
determined whether the reduced motor torque is sufficient to accelerate the load
over the whole speed range.

M10x Parameter description | Motor control and protection unit 17
The changeover is based on “time,” the star-to-delta transition takes place after the
parameterized changeover time.
The star-to-delta switchover is done with a maximum transition time to ensure
quenching of the arc in star operation before it changes over to delta to prevent
short-circuit.
During the contactor transitions, the M102 waits until the previous sequence is
successfully completed. In case of any contactor failure, the feedback supervision
trip will open all the contactors.
NR-2N (M102 only): Non-reversible two-speed motor separate winding
Two-speed drives are used for applications requiring dual motor outputs. NR-2N is
the starter designed for two separate winding motors. Please refer to the user guide
for more details on function description.
Current measurement for NR-2N utilizes two sets of external CTs, measuring
current from main supply. External CTs can be selected separately for both motor
windings.
NR-2N Dahlander (M102 only): Non-reversible two-speed motor Dahlander
connection
Two-speed drives are used for applications requiring dual motor outputs. NR-2N
Dahlander is the starter type designed for motors with Dahlander connection.
Please refer to the User Guide for more details on function description.
Autotransformer (M102 only): Non-reversible motor starter based on reduced
voltage via auto-transformer
Autotransformer starter supports motor starting with reduced voltage, providing
reduced motor startup current. As a result, the starting torque is reduced
accordingly.

18 Motor control and protection unit | M10x parameter discription
NR_softstarter (M102 only): Non-reversible softstarter control
Softstarter applications are for controlling motor accessory softstarter devices.
M10x gives start and stop commands to the softstarter unit. The softstarter is
set for adjusting motor voltage with its own parameters. More information about
softstarter can be found in the softstarter manual. Please refer to the User Guide for
more details on function description.
Rev_softstarter (M102 only): Reversible softstarter control
Functionality of this starter type is according to NR-softstarter with support for
reversing motor direction. Please refer to the User Guide for more details on
function description.
Feeder: The feeder application is regarded as a specific starter type in M10x. For
feeder mode, the dedicated motor protections are either auto-inhibited or prohibited
via parameter setting. The circuit breaker trip signal is detected by M10x via
specified inputs before an alarm sounded. All measurement and control functions
are activated for this application.
Note: The internal relays CCA and CCB are electrically interlocked for all
starter types.
Contactor feeder: Feeder control by contactor
When a start command is given, the internal relay CCA remains closed until a stop
command is given. The internal relay CCB and CCC has no function here.
Contactor feeder/RCU: Feeder control by contactor on line (remote control of the
contactor, bypassing the M10x).
The start CW command closes the internal relay CCA for 1sec respectively. The
stop command will close relay CCC for 1 sec. The wiring of the self-auxiliary
contact across the start command latches the contactor.
Removing the M10x from the starter will not prevent RCU operation depending
however which the connection (external relay and/or switch) is used for start
and stop). The stop pulse issued by the M10x will override the RCU-switch start
position.

M10x Parameter description | Motor control and protection unit 19
: Motor control
: 1 (1) 250 s
: 5s
: Motor control/Starter type (all)
Motor control/Changeover time
TOL protection/TOL alarm
Stall protection/Function enable, disable
Phase failure protection/Function enable, disable
Unbalance protection/Function enable, disable
Earth fault protection/Function enable, disable
Underload protection/Function enable, disable
Noload protection/Function enable, disable
:
Motor startup time parameter is used to define the maximum startup time for the
motor. It is the time that is required for the motor to complete its starting sequence.
The starting sequence is said to be complete when the startup current reaches 1.25
times the nominal current.
This parameter defines the length of time for the startup phase of the motor during
which most of the protection functions and alarm messages are deliberately
suppressed.
Protection type Suppressed during motor
startup
Selectable during motor
startup
TOL protection 
Stall protection 
Long start protection 
Phase failure protection 
Unbalance protection 
Underload protection 
Noload protection 
Earth fault protection 
PTC protection 
Undervoltage protection 
Start limitation 
Phase sequence 
Startup time
Function
Range
Default setting
Related parameters
Description

20 Motor control and protection unit | M10x parameter discription
Changeover Time (M102 Only)
Function
Range
Default setting
Related parameters
Description
Ramp up time (M102 Only)
Function
Range
Default setting
Related parameters
Startup time (N2) (M102 Only)
Function
Range
Default setting
Related parameters
Description
: Motor control
: 1 (1) 250 sec
: 5sec
: Motor control/Starter type (NR-SD, NR-2N, NR-2N
Dahlander, Autotransformer)
Underload protection/Enabled, disabled
Noload protection/Enabled, disabled
:
: Motor control
: 1 (1) 250 sec
: 10sec
: Motor control/Starter type (NR-softstarter, REV-
softstarter)
Phase failure protection
Unbalance protection
Underload protection
Noload protection
: Motor control
: 1 (1) 250 sec
: 5sec
: Motor control/Motor startup time (N1)
Motor control/Starter type (NR-2N, NR-2N Dahlander)
:
This parameter has the same definition as the previous parameter, “Motor startup
time,” except it is dedicated for speed N2.
This parameter is applied to both NR-SD starter, Autotransformer starter, NR-2N
starter and NR-2N Dahlander starter. In the case of autotransformer starter, the
parameter defines the time that the motor is running with reduced voltage. The
motor changes to line voltage connection when the defined time has elapsed. For
SD starter, the start-to-delta transition is executed after the defined time. For NR-
2N starter and NR-2N Dahlander starter, speed 2 will transfer to speed 1 after the
defined time has elapsed.