IEC 62386-217:2018

IEC 62386-217 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –
Part 217: Particular requirements for control gear – Thermal gear protection
(device type 16)
Interface d’éclairage adressable numérique –
Partie 217: Exigences particulières pour les appareillages de commande –
Protection thermique de l'appareillage (dispositifs de type 16)

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IEC 62386-217 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Digital addressable lighting interface –

Part 217: Particular requirements for control gear – Thermal gear protection

(device type 16)
Interface d’éclairage adressable numérique –

Partie 217: Exigences particulières pour les appareillages de commande –

Protection thermique de l'appareillage (dispositifs de type 16)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.50; 29.140.99 ISBN 978-2-8322-5501-8

– 2 – IEC 62386-217:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 8
4.1 General . 8
4.2 Version number . 8
5 Electrical specification . 8
6 Interface power supply . 8
7 Transmission protocol structure . 8
8 Timing . 8
9 Method of operation . 8
9.1 General . 8
9.2 Thermal gear behaviour . 8
9.3 Thermal gear overload . 10
9.4 Thermal gear shutdown. 10
9.5 Failure status . 11
10 Declaration of variables . 12
11 Definition of commands . 12
11.1 General . 12
11.2 Overview sheets . 12
11.3 Application extended commands . 13
11.3.1 General . 13
11.3.2 Configuration instructions . 13
11.3.3 Queries. 13
11.4 Special commands . 14
11.4.1 General . 14
11.4.2 ENABLE DEVICE TYPE (data) . 14
Bibliography . 15

Figure 1 – IEC 62386 graphical overview . 5
Figure 2 – Thermal gear protection state diagram . 9
Figure 3 – Example of temperature change over time . 10

Table 1 – Control gear failure status . 11
Table 2 – Declaration of variables . 12
Table 3 – Application extended commands for this device type . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 217: Particular requirements for control gear –
Thermal gear protection (device type 16)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62386-217 has been prepared by IEC technical committee 34:
Lamps and related equipment.
The text of this International Standard is based on the following documents:
FDIS Report on voting
34/481/FDIS 34/505/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62386-217:2018 © IEC 2018
This Part 217 of IEC 62386 is intended to be used in conjunction with:
• Part 101, which contains general requirements for system components;
• Part 102, which contains general requirements for control gear.
A list of all parts in the IEC 62386 series, published under the general title: Digital
addressable lighting interface, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related
to the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
IEC 62386 contains several parts, referred to as series. The 1xx series includes the basic
specifications. Part 101 contains general requirements for system components, Part 102
extends this information with general requirements for control gear and Part 103 extends it
further with general requirements for control devices.
The 2xx parts extend the general requirements for control gear with lamp specific extensions
(mainly for backward compatibility with Edition 1 of IEC 62386) and with control gear specific
features.
The 3xx parts extend the general requirements for control devices with input device specific
extensions describing the instance types as well as some common features that can be
combined with multiple instance types.
This first edition of IEC 62386-217 is intended to be used in conjunction with IEC 62386-
101:2014, IEC 62386-101:2014/AMD1:—, IEC 62386-102:2014 and IEC 62386-
102:2014/AMD1:—. The division into separately published parts provides for ease of future
amendments and revisions. Additional requirements will be added as and when a need for
them is recognized.
The setup of the standards is graphically represented in Figure 1 below.
2xx 2xx 2xx 2xx 2xx 3xx 3xx 3xx 3xx 3xx
102 General requirements - 103 General requirements -
Control gear Control devices
101 General requirements -
System components
IEC
Figure 1 – IEC 62386 graphical overview
This document, and the other parts that make up the IEC 62386-200 series, in referring to any
of the clauses of IEC 62386-1XX, specifies the extent to which such a clause is applicable;
the parts also include additional requirements, as necessary.
Where the requirements of any of the clauses of IEC 62386-1XX are referred to in this
document by the sentence “The requirements of IEC 62386-1XX, Clause “n” apply”, this
sentence is to be interpreted as meaning that all requirements of the clause in question of
Part 1XX apply, except any which are clearly inapplicable.
The standardization of the control interface for control gear is intended to achieve compatible
co-existence between electronic control gear and lighting control devices, below the level of
building management systems. This document describes a method of implementing control
gear.
– 6 – IEC 62386-217:2018 © IEC 2018
All numbers used in this document are decimal numbers unless otherwise noted. Hexadecimal
numbers are given in the format 0xVV, where VV is the value. Binary numbers are given in
the format XXXXXXXXb or in the format XXXX XXXX, where X is 0 or 1; “x” in binary numbers
means “don't care”.
The following typographic expressions are used:
Variables: “variableName” or “variableName[3:0]”, giving only bits 3 to 0 of “variableName”.
Range of values: [lowest, highest]
Command: “COMMAND NAME”
DIGITAL ADDRESSABLE LIGHTING INTERFACE –

Part 217: Particular requirements for control gear –
Thermal gear protection (device type 16)

1 Scope
This part of IEC 62386 specifies a bus system for control by digital signals of electronic
lighting equipment which is in line with the requirements of IEC 61347 (all parts), with the
addition of DC supplies.
This document is only applicable to IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—
control gear that implements thermal gear protection.
NOTE Requirements for testing individual products during production are not included.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 62386-101:2014, Digital addressable lighting interface – Part 101: General requirements
– System components
IEC 62386-101:2014/AMD1:—
IEC 62386-102:2014, Digital addressable lighting interface – Part 102: General requirements
– Control gear
IEC 62386-102:2014/AMD1:—
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62386-102 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
thermal gear overload
condition in which the control gear temperature exceeds the upper limit T of the normal
ovl
operating range and with the consequence that the light output is reduced
_______________
Under preparation. Stage at the time of publication: IEC CCDV 62386-101/AMD1:2018.
Under preparation. Stage at the time of publication: IEC CCDV 62386-102/AMD1:2018.

– 8 – IEC 62386-217:2018 © IEC 2018
3.2
thermal gear shutdown
thermal gear overload condition in which the control gear temperature exceeds the maximum
permissible temperature T and with the consequence that the lamp is switched off
shut
4 General
4.1 General
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 4 apply,
with the restrictions, changes and additions identified below.
4.2 Version number
In 4.2 of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, “102” shall be replaced by
“217”, “version number” shall be replaced by “extended version number” and “versionNumber”
shall be replaced by “extendedVersionNumber”.
5 Electrical specification
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 5 apply.
6 Interface power supply
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 6 apply.
7 Transmission protocol structure
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 7 apply.
8 Timing
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 8 apply.
9 Method of operation
9.1 General
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 9 apply
with the following additions.
9.2 Thermal gear behaviour
Depending on the control gear temperature, various states can be identified within a control
gear:
• Normal: the control gear temperature is in the defined temperature ranges.
• Overload: the control gear temperature exceeds the defined overload temperature
).
threshold (T
ovl
• Shutdown: the control gear temperature exceeds the defined shutdown temperature
threshold (T ).
shut
All possible state transitions are illustrated in Figure 2.

Thermal gear protection
T < (T – H )
shut shut
[(T – H )≤(T – H )]
shut shut ovl ovl
T < (T – H )
shut shut
Normal Overload [(T – H )>(T – H )] Shutdown
T < (T – H ) shut shut ovl ovl
ovl ovl
T > T Light level reduction T > T Lamp switched off
ovl shut
IEC
Figure 2 – Thermal gear protection state diagram
To avoid unwanted frequent switching for each temperature threshold a hysteresis is defined
as follows:
• H : hysteresis defined for T ;
ovl ovl
• H : hysteresis defined for T .
shut shut
The temperature thresholds T and T and their corresponding hysteresis H and H
ovl shut ovl shut
are manufacturer specific and shall be stated in the manual/documentation.
The relation between the temperature thresholds in Kelvin and their corresponding hysteresis
is as follows:
• T ≤ T ;
ovl shut
• H < T ;
ovl ovl
• H < T .
shut shut
Starting from a normal state, if the control gear temperature rises above T , the control gear
ovl
shall enter the overload state. If the control gear temperature increases even more, rising
above T , the control gear shall enter the shutdown state. When the control gear
shut
temperature drops below (T – H ), but above T , the control gear shall return to the
shut shut ovl
overload state. When the control gear temperature drops below (T – H ), the control gear
ovl ovl
shall return to the normal state. Figure 3 illustrates this case.

– 10 – IEC 62386-217:2018 © IEC 2018
T
shut
H
shut
T – H
shut shut
T
ovl
T – H
ovl ovl
H
ovl
Shutdown Shutdown
state state
Overload Normal Overload Overload Overload Normal
state state state state state state
0 1 2 3 4 5 6 7 8 9
Time
IEC
Figure 3 – Example of temperature change over time
The fact that a thermal gear protection is implemented and its actual status can be queried
does not relieve the user from the obligation to comply with safety relevant information for
installation given by the manufacturer. A note to this effect shall be included in the
manual/documentation.
9.3 Thermal gear overload
When the control gear temperature rises above T the control gear shall enter the overload
ovl
state.
When entering the overload state the control gear shall:
• set “controlGearFailure” to TRUE;
• set “thermalGearOverload” to TRUE;
• when entering from normal state: increment “overloadCounter” by 1, unless it equals 255;
• change the normal relationship between “actualLevel” and light output in order to decrease
the control gear temperature.
While in the overload state, there shall be light in case “actualLevel” is not zero, except in case
of total lamp failure.
When the control gear temperature drops below (T – H ) the control gear shall return to
ovl ovl
the normal state. On return to the normal state the control gear shall:
• set “controlGearFailure” to FALSE, unless other control gear failures prevent this;
• set “thermalGearOverload” to FALSE;
• re-establish the normal relationship between “actualLevel” and light output.
“thermalGearOverload” can be queried using “QUERY THERMAL GEAR OVERLOAD”.
9.4 Thermal gear shutdown
When the control gear temperature rises above T the control gear shall enter the shutdown
shut
state.
When entering the shutdown state, the control gear shall additionally to the overload state:
Temperature (°C)
• set “thermalGearShutdown” to TRUE;
• set the light output to 0 %;
• increment “shutdownCounter” by 1, unless it equals 255;
• set “lampOn” to FALSE.
When the control gear temperature drops below (T – H ), the control gear shall:
shut shut
• return to the overload state, if the temperature thresholds and hysteresis are set such that
the following condition applies (T – H ) > (T – H );
shut shut ovl ovl
• or, return to the normal state, if the temperature thresholds and hysteresis are set such
that the following condition applies (T – H ) ≤ (T – H ).
shut shut ovl ovl
On return to the overload state the control gear shall:
• set “thermalGearShutdown” to FALSE;
• the light output shall be adjusted according to the overload state;
• “lampOn” shall reflect the actual status.
On return to the normal state the control gear shall:
• set “controlGearFailure” to FALSE, unless other control gear failures prevent this;
• set “thermalGearOverload” to FALSE;
• set “thermalGearShutdown” to FALSE;
• re-establish the normal relationship between “actualLevel” and light output;
• “lampOn” shall reflect the actual status.
“thermalGearShutdown” can be queried using “QUERY THERMAL GEAR SHUTDOWN”.
NOTE Returning from shutdown state to normal or overload state could include the startup phase as indicated in
IEC 62386-102:2014, and IEC 62386-102:2014/AMD1:—, Clause 9.
9.5 Failure status
Failures are notified in the failure status byte. The failure status byte shall be updated
regularly by the control gear and shall reflect the actual situation without delay unless
explicitly stated otherwise. The failure status byte can be queried with
“QUERY FAILURE STATUS”. See Table 1.
Table 1 – Control gear failure status
Bit Description Value
0 Reserved -
1 Reserved -
2 Reserved -
3 Reserved -
4 Reserved -
5 “thermalGearShutdown” “1” = Yes
6 “thermalGearOverload” “1” = Yes
7 Reserved -
– 12 – IEC 62386-217:2018 © IEC 2018
“overloadCounter” and “shutdownCounter” indicate how often the overload state or the shutdown
state have been entered since the counters were last reset. The counters have a maximum
value of 255 and will not increase further. The variables can be queried with “QUERY
THERMAL GEAR SHUTDOWN COUNTER” and “QUERY THERMAL GEAR OVERLOAD
COUNTER”, and can be cleared with “RESET THERMAL GEAR COUNTER”.
10 Declaration of variables
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 10
apply, with the following additional variables for this device type, as indicated in Table 2.
Table 2 – Declaration of variables
Variable Default value Reset value Power on value Range of validity Memory
(factory) type
a b
c
“failureStatus”
0 0,64,96 RAM
“overloadCounter” no change no change [0,255] NVM
“shutdownCounter” 0 no change no change [0,255] NVM
a b
c
“thermalGearShutdown” FALSE [TRUE, FALSE] RAM
a b
c
“thermalGearOverload” FALSE [TRUE, FALSE] RAM

“extendedVersionNumber” 2.0 no change no change 00001000b ROM

“deviceType” 16 no change no change 16 ROM
a
Not applicable.
b
The value could change as a consequence of the RESET command execution.
c
The value should reflect the actual situation as soon as possible.

11 Definition of commands
11.1 General
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, Clause 11,
apply with the following additions.
11.2 Overview sheets
Table 3 gives an overview of the application extended commands for this device type.
Unused opcodes of application extended commands shall be reserved for future needs.

Table 3 – Application extended commands for this device type
Command name Address Opcode References Command
byte byte reference
See
IEC 62386-
102, 7.2.2
RESET THERMAL GEAR COUNT
Device 1 0xE0    9.5 11.3.2.2
ER
QUERY FAILURE STATUS Device 1 0xF1   9.3, 9.4, 9.5 11.3.3.2
QUERY THERMAL GEAR SHUTD
Device
1 0xF7   9.4 11.3.3.3
OWN
QUERY THERMAL GEAR OVERL
Device 1 0xF8   9.3 11.3.3.4
OAD
QUERY THERMAL GEAR SHUTD
Device 1 0xF9   9.5 11.3.3.5
OWN COUNTER
QUERY THERMAL GEAR OVERL
Device 1 0xFA   9.5 11.3.3.6
OAD COUNTER
QUERY EXTENDED VERSION NU
Device 1 0xFF   4.2 11.3.3.7
MBER
ENABLE DEVICE TYPE (data) 0xC1 0x10    11.4.2

11.3 Application extended commands
11.3.1 General
Application extended commands as defined in this document shall be preceded by
“ENABLE DEVICE TYPE (data)” where data equals “deviceType”. For device types other than
“deviceType” these commands may be used in a different way.
11.3.2 Configuration instructions
11.3.2.1 General
The requirements of IEC 62386-102:2014 and IEC 62386-102:2014/AMD1:—, 11.4.1 apply
with the following additions.
11.3.2.2 RESET THERMAL GEAR COUNTER
The instruction shall set “overloadCounter” and “shutdownCounter” to 0.
11.3.3 Queries
11.3.3.1 General
T
...