Siemens M200D User Manual

SIRIUS Motor Starter

M200D AS-Interface Basic

Manual • 03/2009

SIRIUS

Answers for industry.

SIRIUS

Motor starter

M200D AS-Interface Basic

Manual

03/2009

Introduction / product description

Product family

Functions

Installation / connection

Configuration / parameterization

Commissioning

Diagnostics

Technical specifications

Appendix

1

2

3

4

5

6

7

8

A

A5E01668085-01

Legal information

Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

CAUTION

without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

NOTICE

indicates that an unintended result or situation can occur if the corresponding information is not taken into account.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

Qualified Personnel

The device/system may only be set up and used in conjunction with this documentation. Commissioning and operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission, ground and label devices, systems and circuits in accordance with established safety practices and standards.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be adhered to. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

Siemens AG	Ordernumber: 3RK1702-2BB11-1AA1	Copyright © Siemens AG 2009.
Industry Sector	03/2009	Technical data subject to change
Postfach 48 48
90026 NÜRNBERG
GERMANY

Table of contents

1	Introduction / product description............................................................................................		................... 9
	1.1	What are M200D distributed motor starters?.................................................................................	9
	1.2	Fieldbus interfaces.......................................................................................................................	11
	1.2.1	AS-Interface.................................................................................................................................	11
2	Product family..........................................................................................................................................		13
	2.1	Motor starter M200D AS-Interface...............................................................................................	13
	2.2	Overview of the device functions.................................................................................................	14
	2.3	Design concept............................................................................................................................	15
	2.3.1	Operator controls.........................................................................................................................	16
	2.3.2	Connections.................................................................................................................................	17
	2.3.3	Status indicators ..........................................................................................................................	18
3	Functions.................................................................................................................................................		19
	3.1	Overview of the device functions.................................................................................................	19
	3.2	Introduction ..................................................................................................................................	20
	3.3	Basic functions / parameters........................................................................................................	21
	3.3.1	Rated operating current...............................................................................................................	21
	3.3.2	Protection against voltage failure.................................................................................................	21
	3.4	Fieldbus interface.........................................................................................................................	22
	3.5	Motor control................................................................................................................................	23
	3.5.1	Control function: reversing starter................................................................................................	23
	3.5.2	Brake output.................................................................................................................................	23
	3.6	Motor protection...........................................................................................................................	25
	3.6.1	Thermal motor model...................................................................................................................	25
	3.6.2	Temperature sensor.....................................................................................................................	27
	3.7	System monitoring.......................................................................................................................	29
	3.7.1	Current limit values......................................................................................................................	29
	3.7.2	Asymmetry monitoring.................................................................................................................	31
	3.7.3	Inputs ...........................................................................................................................................	32
	3.7.4	Outputs.........................................................................................................................................	35
	3.7.5	Connector monitoring...................................................................................................................	36
	3.7.5.1	Power connector..........................................................................................................................	36
	3.7.5.2	Motor connector...........................................................................................................................	37
	3.8	Short-circuit protection (circuit breaker / disconnecting means)..................................................	38
	3.9	Communication............................................................................................................................	38
	3.9.1	Mode monitoring..........................................................................................................................	39
	3.9.2	Plausibility check for settings.......................................................................................................	39
	3.9.3	Message output ...........................................................................................................................	40
	3.10	Trip reset......................................................................................................................................	41
	3.11	Self-test........................................................................................................................................	41
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Table of contents

	3.12	Solid-state/mechanical switching technology..............................................................................	42
	3.13	Local device interface .................................................................................................................	43
	3.14	Integrated manual local control...................................................................................................	44
4	Installation / connection...........................................................................................................................		47
	4.1	Installation...................................................................................................................................	47
	4.1.1	Installation rules..........................................................................................................................	47
	4.1.2	Derating.......................................................................................................................................	48
	4.1.3	Installing the protection guards...................................................................................................	51
	4.1.4	Installing the motor starter..................................................................................................	......... 52
	4.1.5	Functional ground .............................................................................................................	.......... 52
	4.1.6	Setting the AS-i address ......................................................................................................	....... 53
	4.2	Connection..................................................................................................................................	55
	4.2.1	Required components/cables .....................................................................................................	55
	4.2.2	Prefabricating power cables...................................................................................................	..... 56
	4.2.3	Installing and wiring power connectors.......................................................................................	57
	4.2.4	Power terminal............................................................................................................................	58
	4.2.5	Brake output..................................................................................................................	.............. 60
	4.2.6	Digital inputs/outputs...................................................................................................................	62
	4.2.6.1	Digital inputs................................................................................................................................	62
	4.2.6.2	Digital output...............................................................................................................................	63
	4.2.7	AS-Interface................................................................................................................................	64
	4.2.8	Connection options for AS-Interface...........................................................................................	64
5	Configuration / parameterization..............................................................................................................		67
	5.1	Configuration...............................................................................................................................	67
	5.2	Configuration on the AS-i master CP 343-2................................................................................	68
	5.3	Parameterization.........................................................................................................................	71
	5.3.1	Parameterization.........................................................................................................................	71
	5.3.2	Parameterization via local setting...............................................................................................	72
	5.4	Process images...........................................................................................................................	74
6	Commissioning........................................................................................................................................		75
	6.1	Prerequisites...............................................................................................................................	75
	6.2	M200D AS-i components............................................................................................................	76
	6.3	Procedure....................................................................................................................................	77
7	Diagnostics...................................................................................................................		........................... 79
	7.1	Diagnostics..................................................................................................................................	79
	7.2	Diagnostics with LED..................................................................................................................	80
	7.2.1	Statuses of the individual LEDs..................................................................................................	80
	7.2.2	LED display combinations......................................................................................................	..... 82
	7.3	Diagnostics via parameter channel (parameter echo)................................................................	84
	7.4	Diagnostics with the addressing and diagnostics unit ................................................................	87
	7.5	Troubleshooting ..........................................................................................................................	87
	7.5.1	Response to faults ......................................................................................................................	87
	7.5.2	Acknowledging faults ..........................................................................................................	........ 88
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			Table of contents
8	Technical specifications...........................................................................................................................		89
	8.1	General technical specifications ..................................................................................................	89
	8.2	Motor starter .................................................................................................................................	90
	8.3	Brake control ................................................................................................................................	91
	8.4	Inputs ...........................................................................................................................................	92
	8.5	Output ..........................................................................................................................................	92
	8.6	Thermistor motor protection .........................................................................................................	93
	8.7	Switching frequency .....................................................................................................................	93
	8.8	Electrical service life of contactor .................................................................................................	96
	8.9	Dimension drawing ......................................................................................................................	98
A	Appendix	..................................................................................................................................................	99
	A.1	Order numbers .............................................................................................................................	99
	A.1.1 .............................................................................................................................	Order numbers	99
	A.1.2 ............................................................................................................	Spare parts/accessories	100
	A.2 ...............................................................................................................................	Bibliography	102
	Glossary ................................................................................................................................................		105
	Index......................................................................................................................................................		109

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Table of contents

8	M200D AS-Interface Basic
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Introduction / product description

1

1.1What are M200D distributed motor starters?

M200D motor starters are standalone devices with a high degree of protection (IP65) for distributed use near the motor.

Depending on the order variant, they are available as:

●Direct starters, electromechanical or electronic (DSte, sDSte)

●Reversing starters, electromechanical or electronic (RSte, sRSte)

They are suitable for the following tasks:

●Switching and protecting three-phase loads at 400 V AC up to 5.5 kW

●Control via AS-Interface

Depending on the order variant, they are equipped with:

●Brake output for 400 / 230 V AC or 180 V DC

●Integrated manual local control with a key-operated switch and keypad

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Introduction /product description

1.1 What are M200D distributed motor starters?

Connecting the M200D motor starter to AS-Interface

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10	Manual, 03/2009, A5E01668085-01

Introduction /product description 1.2 Fieldbus interfaces

1.2Fieldbus interfaces

1.2.1AS-Interface

Overview

The AS-Interface (actuator sensor interface, AS-i) is an open international standard for fieldbus communication between distributed actuators and sensors at the lowest control level.

AS-i complies with the IEC 61158 / EN 50295 standards and was specifically designed for connecting binary sensors and actuators that comply with these standards. AS-i makes it possible to replace point-to-point cabling of the sensors and actuators by a bus line.

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The AS-Interface has the following advantages:

●Flexibility

●Cost effectiveness

●Simple and rapid installation with a minimum of errors

●A common line for transferring data and power

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Introduction /product description 1.2 Fieldbus interfaces

Further information

●Catalogs, customer magazines, and brochures are available on the Internet (http://www.automation.siemens.com/net/html_00/support/presales.htm)

●Brochure "Industrial communication for automation" (http://www.automation.siemens.com/download/internet/cache/3/1462730/pub/en/bs_kschrift_en_0408.pdf)

(Introductory information about industrial communication):

●Catalog IK PI 2009 "Industrial Communication for Automation and Drives" (http://www.automation.siemens.com/net/html_76/support/printkatalog.htm) (Device overview and ordering data for industrial communication)

●"AS-Interface - The Solution for Automation" (http://www.asinterface.net/EN/System/Publications?)

(Compendium of technology, function and applications):

●AS-Interface homepage (http://www.as-interface.net/EN/Homepage?)

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Product family

2

2.1Motor starter M200D AS-Interface

The following motor starters with AS-Interface (AS-i) are available:

●M200D AS-i Basic

motor starter with thermistor motor protection + electronic motor model:

–Direct starter (electromechanical) (DSte) up to 5.5 kW, Current ranges: 0.15 – 2 A and 1.5 – 12 A

–Reversing starter (electromechanical) (RSte) up to 5.5 kW, Current ranges: 0.15 – 2 A and 1.5 – 12 A

–Direct starter (electronic) (sDSte) up to 4 kW, Current ranges: 0.15 – 2 A and 1.5 – 9 A

–Reversing starter (electronic) (sRSte) up to 4 kW, Current ranges: 0.15 – 2 A and 1.5 – 9 A

Order variants:

●Brake output for:

–400/230 V AC

–180 V DC

●Integrated manual operation (key-operated switch and keypad)

Accessories:

●Connection components (e.g. cables, connectors, etc.)

●Hand-held device

●Protection guard for the plug connections

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Product family

2.2 Overview of the device functions

2.2	Overview of the device functions
		Device functions	Electromechanical (DSte, RSte)/
			electronic (sDSte, sRSte)
		Fieldbus interface	●
		Control function: reversing starter	○
		Control function: soft starter	—
		Brake output 400 V / 230 V AC	○
		Brake output 180 V DC	○
		Thermal motor model	●
		Temperature sensor (thermistor motor protection)	●
		Asymmetry monitoring	●
		Blocking current monitoring	●
		Zero-current monitoring	●
		M12 inputs (routed via AS-i)	4 (2)
		M12 outputs (routed via AS-i)	1 (0)
		Connector monitoring	●
		Short-circuit protection	●
		Communication
		Slave type	A/B slave (4I / 3O)
		Communication profile	7.A.E
		Diagnostics via parameter channel (parameter echo)	●
		Support for AS-i S1 status bit	●
		Transfer of data sets via AS-i	—
		Extended cyclic process image	—
		Access via "Motor Starter ES"	—
		Additional functions
		Self-test	●
		Local device interface	●
		Disconnecting means	●
		Integrated manual local control	○
		(key-operated switch, keypad with LEDs)
		Setting elements parameterized on device	●
		● Integrated
		○ Order variant

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Product family 2.3 Design concept

2.3Design concept

Connections and controls on the motor starter

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Diagnostic LEDs

Cover (setting elements)M12 output

M12 inputs

Protection guard for cables and connections (accessories)Fixing holes for installation

400 V infeed

Motor connection

Key-operated switch (order variant)

Keypad for manual operation (order variant)

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Product family 2.3 Design concept

2.3.1Operator controls

The motor starter is equipped with the following operator controls:

Key-operated switch (order variant)

Keypad (order variant)

Disconnecting means (circuit breaker)

Cover for parameter setting elements

Integrated manual local control (key-operated switch and keypad ; order variant)

A key-operated switch and keypad are used for local operation. The key can be inserted/removed in three positions.

Disconnecting means (circuit breaker)

The disconnecting means is designed for the following individual functions:

●Disconnecting the series-connected consumers from the supply voltage

●Short-circuit protection of the series-connected consumer

●Switching on inhibited via padlock (max. three padlocks possible)

Parameter settings

The following setting elements can be found under the cover of the M200D AS-i Basic:

●Rotary coding switch for:

–Setting the rated operating current

–Deactivating the thermal motor model (class OFF)

●DIP switch for:

–Autoreset (ON / OFF)

–Connector monitoring (ON / OFF)

–Temperature sensor (ON / OFF)

–Temperature sensor (PTC / TC)

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Product family 2.3 Design concept

2.3.2Connections

Power terminals

Infeed for the three phases as well as the PE and N conductor via power connectors (HAN Q4/2 with ISO23570 assignment)

Connection of the motor via power connectors (HAN Q8/0 with ISO23570 assignment)

Control circuit / bus

AS-i bus connection with auxiliary voltage, M12 connector

Optical device interface (under the labeling strip) for connecting the hand-held device1 x M12 output

4 x M12 inputs

•2 inputs can be read via AS-i

•2 inputs with fixed input function

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Product family 2.3 Design concept

2.3.3Status indicators

The following LEDs on the front of the starter indicate the device status:

Indicators for the device status and communication

Indicator for output OUT1

Indicators for inputs IN1 ... IN4

For a detailed description of the indicators, see "Diagnostics (Page 80)".

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Functions

3

3.1	Overview of the device functions
		Device functions	Electromechanical (DSte,
			RSte)/
			electronic (sDSte, sRSte)
		Fieldbus interface (Page 22)	●
		Control function: reversing starter (Page 23)	○
		Brake output 400 V / 230 V AC (Page 23)	○
		Brake output 180 V DC (Page 23)	○
		Thermal motor model (Page 25)	●
		Temperature sensor (thermistor motor protection) (Page 27)	●
		Blocking protection (Page 29)	●
		Zero-current monitoring (Page 29)	●
		Asymmetry monitoring (Page 31)	●
		M12 inputs (routed via AS-i) (Page 32)	4 (2)
		M12 outputs (routed via AS-i) (Page 35)	1 (0)
		Connector monitoring (Page 36)	●
		Short-circuit protection (Page 38)	●
		Communication
		Slave type	A/B slave (4I / 3O)
		Communication profile (Page 68)	7.A.E
		Diagnostics via parameter channel (parameter echo) (Page 84)	●
		Support for AS-i S1 status bit (Page 84)	●
		Transfer of data sets via AS-i	—
		Extended cyclic process image	—
		Access via "Motor Starter ES"	—
		Additional functions
		Self-test (Page 41)	●
		Local device interface (Page 43)	●
		Disconnecting means (Page 38)	●
		Integrated manual local control (Page 44)	○
		(key-operated switch, keypad with LEDs)
		Setting elements parameterized on device (Page 72)	●
		● Integrated
		○ Order variant

See also

Communication (Page 38)

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Functions

3.2 Introduction

3.2Introduction

Device functions

This section describes the device functions. All the device functions are assigned inputs (e.g. device parameters) and outputs (e.g. messages).

The following schematic diagram illustrates the functional principle of the device:

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Self-protection

The motor protects itself against fatal damage by means of the thermal motor model and temperature measurements for electronic switching elements.

Currents

Note

All current values (e.g. blocking current, current limits) are percentages of the rated operating current set on the device (e.g. Ie = 2 A = 100 %).

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Functions 3.3 Basic functions /parameters

3.3Basic functions / parameters

Definition

Basic parameters are "central" parameters required by a range of device functions.

3.3.1Rated operating current

Here, you can enter the rated operating current that the branch (switchgear and motor) can carry without interruption. This is usually the rated motor current. The setting range depends on the output class of the M200D motor starter (0.15 ... 2 A or 1.5 ... 12 A).

NOTICE

The rated operating current is one of the key parameters.

The rated operating current must always be set if motor protection is to be ensured via the electronic overload relay.

The overload relay can be deactivated.

In this case, motor protection must be ensured by means of a thermistor in the motor.

Notes

●On the motor starter, the default rated operating current is set to the minimum value.

●The rated operating current for the M200D AS-i Basic motor starter is set by means of the rotary coding switch. For more information, see Parameterization via local setting

(Page 72).

3.3.2Protection against voltage failure

If the supply voltage fails, the last overload message "Overload" is retained.

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Functions

3.4 Fieldbus interface

3.4Fieldbus interface

Response to CPU / master STOP

If the fieldbus interface is interrupted, all control signals are set to 0.

Note

This is only relevant in "automatic" mode.

Group diagnosis

The controller is informed of whether or not a group fault message is present in the device when "I/O fault bits" on the SAP status tab (S1 = 1) is set. The AS-i master enters the S1 value in the list of I/O faults (LPF) that have been signaled. The controller can read this list via the "GET_LPF" command and then query a specific diagnostic value from the slave (see also Diagnostics via parameter channel (parameter echo) (Page 84)).

The motor starter issues a fault message if a fault is present. In this case, the SF LED lights up red.

Reference

For more information, refer to the documentation for your AS-i master.

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Functions 3.5 Motor control

3.5Motor control

3.5.1Control function: reversing starter

Description

This control function allows the motor starter to control the direction in which motors rotate. An internal logic prevents both directions of rotation from being activated simultaneously. The delayed switchover from one direction of rotation to another is implemented by means of the lock-out time, which is permanently set to 150 ms.

This function only applies to reversing starters.

3.5.2Brake output

Description

A motor-mounted mechanical disk or spring-loaded brake is used to brake the motor. The brake is controlled via the brake output.

Circuit diagram: example

The following circuit diagram illustrates the mechanical braking procedure with a 180 V DC brake output:

Circuit diagram						Motor connector			Pin	Name
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;				3(					2	—
									3	Phase L3
									4	Brake L1 (switched)
									5	Thermistor
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									7	Phase L2
									8	Thermistor
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M200D AS-Interface Basic

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23

Functions

3.5 Motor control

Brake output

Externally-supplied motor brakes are usually powered via a jumper on the motor terminal board.

Since switching the motor and brake simultaneously can increase wear and tear to the brake, all M200D motor starters can be fitted with an optional electronic brake controller.

Depending on the order variant, the following externally-supplied brake coils can be controlled:

●400 V AC / 230 V

(The brake rectifier must be installed in the motor. The rectifier input is controlled via the motor starter).

●180 V DC

(A rectifier is not required for the brake in the motor because the motor starter provides the 180 V DC. In this way, brake coils for 180 V DC can be switched directly).

The brake voltage is fed to the motor together with the motor infeed via a joint cable (e.g. 6 x 1.5 mm2). For more information about connecting the brake output, see section Brake output (Page 60).

Brake release delay at startup

A fixed ON-delay time of 40 ms is set for the M200D AS-i Basic motor starter to prevent wear and tear to the brake (e.g. the motor output is activated 40 ms after the brake output).

In reversing mode, the release delay does not begin until the lock-out time has expired.

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Functions 3.6 Motor protection

3.6Motor protection

3.6.1Thermal motor model

Description

The approximate temperature of the motor is calculated using the measured motor currents and device parameters "Rated operating current" and "Tripping class". This indicates whether the motor is overloaded or functioning in the normal operating range.

Motor protection shutdown response

You use this device parameter to specify how the motor starter is to respond in an overload situation:

●Shutdown without restart (AUTO RESET = off)

Following an overload situation, the shutdown command cannot be reset until the motor model has fallen below the reset threshold and after a reset command has been issued (trip reset).

●Shutdown with restart (AUTO RESET = on)

WARNING

Motor restarts automatically if AUTO RESET is on. Can Cause Death, Serious Injury, or Property Damage

The motor starter restarts automatically after the recovery time if a start command is present (autoreset). (autoreset).

Make sure that you take appropriate measures to exclude the risk of hazardous conditions.

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Functions

3.6 Motor protection

Trip class

The trip class (CLASS) specifies the maximum time within which a protective device must trip from a cold state at 7.2 x the setting current (motor protection to IEC 60947). The M200D AS-i Basic trip class is set permanently to CLASS 10 and can be deactivated.

If the setting is changed to CLASS OFF, the "thermal motor model" function is deactivated along with the accompanying messages. With the M200D AS-i Basic, the thermal motor model is deactivated by means of the rotary coding switch for setting the operating current (CLASS OFF position).

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Note

Deactivation rule

To ensure motor protection, the motor cannot be switched on when the temperature sensor is deactivated and, at the same time, CLASS OFF is set. This is indicated on the M200D AS- i Basic with either an alarm (if an ON command is not present) or a fault (if an ON command is present).

Recovery time

The recovery time is the time defined for cooling after which the system can be reset following an overload trip. The recovery time for the M200D AS-i Basic is set permanently to 90 s.

Trip reset signals present during the recovery time have no effect.

Voltage losses occurring before this time expires can prolong the recovery time.

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Functions 3.6 Motor protection

Prewarning limit for motor heating

The motor starter also assumes a prewarning role, that is, it issues a warning if the motor temperature limit is exceeded. The prewarning limit for the M200D AS-i Basic is 90 % of the motor heating value. The motor is shut down at 100 %.

The alarm can be read via Diagnostics via parameter channel (parameter echo) (Page 84) for the starter.

Settings

Device parameter	Default setting		Setting range
Motor protection shutdown	Shutdown without restart	•	Shutdown without restart
response		•	Shutdown with restart
Trip class	CLASS 10	•	CLASS 10
		•	CLASS OFF

3.6.2Temperature sensor

Description

Temperature sensors are used to directly monitor the motor winding temperature. This indicates whether the motor is overloaded or functioning normally. If temperature sensors are installed in the motor stator winding (order option for the motor), the M200D motor starter can use these to monitor the motor.

M200D motor starters can evaluate one temperature sensor circuit.

Temperature sensor

You can activate or deactivate this parameter depending on whether or not a temperature sensor is installed in the motor. The setting is made by means of the DIP switch on the device.

Two types of temperature sensor are supported:

●Thermoclick.

This is a switch that opens at a certain winding temperature.

●PTC type A.

This is a PTC thermistor with a characteristic to IEC 60947-8.

When the PTC type A temperature sensor is active, temperature sensor monitoring is also activated (see below).

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Functions

3.6 Motor protection

Motor protection shutdown response

You can use this parameter to determine how the motor starter is to respond to a temperature sensor or thermal motor model overload:

●Shutdown without restart (AUTO RESET = off)

●Shutdown with restart (AUTO RESET = on)

WARNING

Motor restarts automatically if AUTO RESET is on. Can Cause Death, Serious Injury, or Property Damage

The motor starter restarts automatically after the recovery time if a start command is present (autoreset). (autoreset).

Make sure that you take appropriate measures to exclude the risk of hazardous conditions.

Temperature sensor monitoring

Temperature sensor monitoring is activated when a PTC type A temperature sensor is parameterized.

This device parameter monitors the temperature sensor cable for interruptions (wire breakage) and short-circuits. The motor is shut down if either of these scenarios occurs.

Settings

The possible settings for the M200D AS-i Basic motor starter can be found in section Parameterization via local setting (Page 72).

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Functions 3.7 System monitoring

3.7System monitoring

3.7.1Current limit values

Description

The motor current and current limit values can be used to determine different system statuses:

System status	Current value	Protection by
Motor blocked	Very high current flowing	Blocking protection
Motor runs at no load (e.g.	Very low current flowing	Residual current detection
because system is damaged)	(< 18.75 % of Ie)

Response to residual current detection

Residual current detection responds when the motor current in all three phases falls below 18.75 % of the set rated operating current. In this case, the motor starter shuts down the motor.

Residual current detection is deactivated by setting the rotary coding switch to "CLASS OFF".

Note

When the motor is switched on, residual current detection is suppressed for around 1 second.

Blocking current monitoring

The blocking current specifies how much current is consumed by the motor (at rated voltage) when the axis blocked.

The blocking current monitoring function detects when a motor axis is blocked mechanically. The block causes the motor to consume more power. The "blocking current" is a defined monitoring threshold for the motor current consumption.

It is monitored as follows:

When the motor starts, the tripping limit for the blocking current is set permanently to 800 % of the rated operating current for a period of 10 s. During operation, the "blocking current" tripping limit is set permanently to 400 % of the rated operating current.

If the blocking current is exceeded, the motor starter detects blocking. Blocking time monitoring is activated as of the point at which the blocking current is exceeded. If the blocking current flows for longer than the blocking time, the motor starter automatically generates a shutdown command.

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Functions

3.7 System monitoring

The blocking current monitoring function is deactivated by setting the rotary coding switch to "CLASS OFF".

Note

If the blocking time expires and the system is still blocked, the motor starter is shut down.

Blocking time

The blocking time is the time a block can be present before the motor shuts down. If the blocking time expires and the system is still blocked, the motor starter is shut down. The blocking time in the M200D AS-i Basic is set permanently to 1 s.

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