Haake HST-M2 User manual

Installation and Operating Manual for Components
HST®-M2 / HST®-M3 / HST®-M4
Switching element with locking mechanism
(Translation of Original Manual)
HST-M2 Ident.-No.: 10788 HST-M2 Ident.-No.: 10342
HST-M2 Ident.-No.: 10823 HST-M2 Ident.-No.: 10343
HST-M2 Ident.-No.: 11051 HST-M2 Ident.-No.: 10358
HST-M2 Ident.-No.: 11215 HST-M2 Ident.-No.: 10503
HST-M2 Ident.-No.: 12090 HST-M2 Ident.-No.: 10504
HST-M2 Ident.-No.: 12120 HST-M2 Ident.-No.: 10584
HST-M2 Ident.-No.: 12188 HST-M2 Ident.-No.: 12261
HST-M2 Ident.-No.: 12242 HST-M2 Ident.-No.: 12307
HST-M3 Ident.-No.: 10555 HST-M3 Ident.-No.: 10334
HST-M3 Ident.-No.: 10649 HST-M3 Ident.-No.: 10335
HST-M3 Ident.-No.: 11029 HST-M3 Ident.-No.: 10818
HST-M3 Ident.-No.: 12077 HST-M3 Ident.-No.: 10985
HST-M3 Ident.-No.: 12288 HST-M3 Ident.-No.: 11196
HST-M4 Ident.-No.: 10844 HST-M4 Ident.-No.: 10505
HST-M4 Ident.-No.: 10554
HST-M4 Ident.-No.: 10560
HST-M4 Ident.-No.: 12170
HST-M4 Ident.-No.: 12277
Figure shows HST-M3 Ident.-No.: 10649 and HST-M2 Ident.-No.: 10342
The image may differ from the product.
Read the operating manual before beginning any work!
Haake Technik GmbH
Master Esch 72
48691 Vreden, Deutschland
[e-mail]
www.haake-technik.com
Tel.: [phone]
Fax: [phone]

2
This installation and operating manual contains proprietary information, which is subject to copyright.
No parts of this documentation may be reproduced or transferred in any manner or by any means, be
it electronic or mechanical, for any purpose without obtaining prior written consent.
Haake Technik GmbH assumes no liability for damage or subsequent damage, arising from the use of
components or replacement parts, which are not original parts.
Haake and HST are registered trademarks of Haake Technik GmbH. All other brand and product
names not mentioned here are or may be registered trademarks and are to be treated accordingly.
© Haake Technik GmbH, Master Esch 72, 48691 Vreden, Germany
All rights reserved.
Contents
1Scope............................................................................................................................................... 3
2Intended use.................................................................................................................................... 3
3Symbol explanation ......................................................................................................................... 3
4Disposal........................................................................................................................................... 3
5Foreseeable misuse ........................................................................................................................ 4
6Identification..................................................................................................................................... 4
7Safety-related functioning................................................................................................................ 4
8Defects which cannot occur............................................................................................................. 5
9Scope of delivery............................................................................................................................. 6
10 Structure and function ..................................................................................................................... 6
10.1 Description............................................................................................................................... 6
10.2 Example................................................................................................................................... 7
11 Safety measures.............................................................................................................................. 8
11.1 Organisational measures......................................................................................................... 8
11.2 Safety of persons..................................................................................................................... 8
11.3 Operating conditions and limitations of use............................................................................. 8
11.4 Assembly................................................................................................................................. 8
11.5 Repairs / Alterations ................................................................................................................ 8
11.6 Electrical equipment ................................................................................................................ 8
12 Installation........................................................................................................................................ 9
12.1 Preparation.............................................................................................................................. 9
12.2 General approach.................................................................................................................... 9
12.3 Installation instructions .......................................................................................................... 10
12.4 Electrical connection.............................................................................................................. 12
13 Performance check........................................................................................................................ 21
14 Operation....................................................................................................................................... 22
14.1 Inserting the key .................................................................................................................... 22
14.2 Removing the key.................................................................................................................. 22
15 Maintenance.................................................................................................................................. 22
16 Cleaning......................................................................................................................................... 23
17 De-installation................................................................................................................................ 23
18 Troubleshooting............................................................................................................................. 24
19 Technical data ............................................................................................................................... 25
20 Dimensions.................................................................................................................................... 26
21 EC Declaration of Conformity........................................................................................................ 29

3
1 Scope
This installation and operating manual is intended for persons who have been authorized to carry out
tasks involving the installation or operation of the HST-series. International, national and, where ap-
propriate, regional regulations are to be observed when handling key transfer systems.
If you have any questions which are not answered in this manual, please get in touch with your re-
gional customer service centre or else make direct contact with
Haake Technik GmbH
Master Esch 72, 48691 Vreden, Germany
Telephone [phone]
Fax [phone]
[e-mail]
2 Intended use
The Switching element with locking mechanism HST-M is used to switch off the power supply to the
load circuits of machines or plants with shut-off delays, with rated currents up to 20A, in accordance
with the conditions of section 19, if the hazardous movements have been shut down.
If the coded switch key is in position 0, the coded key change can be turned and removed.
Other applications are prohibited.
3 Symbol explanation
Warnings are indicated by symbols. The notices are introduced by signal words to indicate the extent
of the hazard.
Attention!
… indicates a potentially hazardous situa-
tion, which may lead to personal injury and
damage to property if it is not avoided.
NOTE!
… highlights useful tips and recommendations
as well as information for efficient and fault-free
operation.
4 Disposal The device must be properly disposed of in accordance with
national laws and regulations.

4
5 Foreseeable misuse
Never operate the keys with extended lever arms. This can damage the internal components and may
render the safety function inoperative.
Do not attempt to unlock the component with objects other than the corresponding keys.
Do not attempt to insert or remove a key by applying excessive force or with the aid of a tool
(hammer).
6 Identification
You can find the model designation and serial number on the component's type label for exact
identification.
If the component is part of a key transfer system, this information, except for the serial number, can
also be found on the key plan.
Note these details (prior to installation, if necessary), so that they can be provided in case of questions
or for ordering spare parts.
7 Safety-related functioning
The safety-related function is performed according to the following requirements:
1. No removal of the switch key in position 1 (cf. section 10.2).
2. No rotation of the switch key without the control voltage from the external security compo-
nent.
3. No removal of the key change in position 1 (see section 10.2).
4. No turning of the key change in position 1 if the switch key is not in position 0.
5. No actuating of the key change if the appropriate coded key change is not inserted.
6. No actuation of the switch without inserted, associated, coded switch key.
7. No actuation of the switch if the key change is not in position 1.

5
8 Defects which cannot occur
Due to the construction, materials, and components used for the component, the faults listed in the
table can be excluded:
Potential Defect
Elimination of Defect
Limitations of Use
Reason
Wear, corrosion.
Permissible acc. To
tables A.4 and A.5 of
DIN EN ISO 13849-2.
See sections 2
Intended use and
sections 19
Technical data.
Application of carefully
selected materials and
manufacturing pro-
cesses; use of proven
springs and special
mounting methods.
Non-
tightening/Loosening
(parts of the compo-
nent).
Permissible acc. To
tables A.4 and A.5 of
DIN EN ISO 13849-2.
See section 2
Intended use.
Application of carefully
selected materials and
manufacturing pro-
cesses; use of proven
springs and special
mounting methods.
Weakening of force due
to remaining defor-
mation or fracture.
Permissible acc. To
table A.5 of DIN EN
ISO 13849-2.
See section 14
Operation.
Use of proven spring
and special mounting
methods.
Fracture, deformation
due to excessive load.
Permissible acc. To
tables A.4 and A.5 of
DIN EN ISO 13849-2.
See section 14
Operation.
Application of carefully
selected materials;
over dimensioning
using safety factor 2
and replication of
parts; use of proven
springs and special
mounting methods.
Stiffness/Getting stuck.
Permissible acc. To
tables A.4 and A.5 of
DIN EN ISO 13849-2.
See sections 2
Intended use and
sections 14
Operation.
Application of carefully
selected materials;
over dimensioning
using safety factor 2
and replication of
parts; use of proven
springs and special
mounting methods.
Contacts do not open.
Switches with contacts
open in accordance
with EN 60947-3.
See:
Technical information
for the switch.
Approved switch in
accordance with DIN
EN ISO 13849-2.
Bypass of adjacent cir-
cuits, which are isolated
from each other.
Bypass for switch can
be excluded in accord-
ance with EN 60947-3.
See:
Technical information
for the switch.
Approved switch in
accordance with DIN
EN ISO 13849-2.

6
9 Scope of delivery
Built-in version:
1 x switching element with locking mechanism HST-M incl. drilling template
Housing version:
1 x switching element with locking mechanism HST-M incl. set for wall mounting
1 x technical information for the inbuilt switch
properly coded keys acc. to number of locks
NOTE!
Means of attachment are not included in the
scope of the delivery.
10 Structure and function
10.1 Description
The Switching element with locking mechanism HST-M consists of two or more locks and a switch,
which form a positive unit. The switching element serves to interrupt the power supply for the driving
elements of a hazardous movement, the shut-off delay of which is so long that a locking mechanism
prevents the switch key from being removed until the hazardous movement has been shut down. The
switching lock makes a unit with the switch. The second or the more lock contains the key change.
In the versions HST-M Ident.-No.: 10334, 10335, 10342, 10343, 10358, 10503, 10504, 10505, 10554,
10560, 10584, 10818, 10985, 11196 and 12170 the switching element with locking mechanism is
mounted in a housing. The Ident.-No.: 10555, 10649, 10788, 10823, 10844, 11029, 11051 11215,
12077, 12090, 12120; 12188; 12307 are built-in versions.
If a control voltage of the external monitoring device (e.g. a standstill monitor), that registers the stand-
still of the hazardous movement, is present in the locking mechanism, then the switch key can be
turned and removed (position 0) by pressing the illuminated green push button.
The position of the locking mechanism is monitored by a micro switch with positive opening operation
of a contact element. The micro switch must be integrated into the machine control system so that it is
only possible to switch on the machine or plant if the switch contacts of the micro switch are closed.
The contacts, see circuit diagram section 12.4, must be integrated in the feedback circuit of the safety
relay.
To interrupt the power supply to a machine or plant, the rotary switch must be connected so that, by
changing from position 1 to position 0, the circuit to the drive unit of the machine or plant is opened.

7
10.2 Example
Figure shows HST-M3 Ident.-No.: 10649
Position 1
Switch key and key change blocked
by locking mechanism. Keys cannot
be removed.
Position 0
Switch key unblocked and can be
removed.
Switch key
change key

8
11 Safety measures
11.1 Organisational measures
Persons who have been authorised to carry out tasks involving the installation or removal of the com-
ponent must have read and understood this manual prior to commencing such tasks.
The operator of the plant or machine has an obligation to ensure the installation and de-installation is
carried out safely and with no hazards by implementing appropriate safety measures.
11.2 Safety of persons
Personnel responsible for installation or removal tasks have to be suitably skilled or else have to be
instructed by suitably skilled persons. On account of their technical training and experience, such
skilled persons have sufficient knowledge of the installation or machine. These persons are sufficiently
familiar with the applicable domestic work protection and accident prevention regulations of
relevance here, that they are able to assess the operational safety of the installation or machine.
It is necessary to implement accident- and fall-prevention measures, whenever tasks are performed or
areas are traversed at height.
11.3 Operating conditions and limitations of use
Please note the intended use (cf. section 2) and the technical information (cf. section 19) described
in this manual.
11.4 Assembly
Before beginning installation, ensure that the component is intended and suitable for the particular
installation site, based on the information on the type label. Always carry out a function test after instal-
lation.
Do not make any alterations to the installation after the function test has been successfully carried out.
11.5 Repairs / Alterations
Do not carry out any repairs to the component. Do not replace or exchange any parts. Send damaged
or faulty components to Haake Technik GmbH to be repaired.
Do not make any alterations to the component. Otherwise, this could lead to malfunctions, which can
cause serious personal injury and irreparable damage to property.
In the event of non-compliance, the guarantee is invalidated and Haake Technik GmbH does not ac-
cept any liability.
11.6 Electrical equipment
Electrical connections must only be carried out by qualified electricians who are familiar with all the
international, national, and, if applicable, regional electrical engineering regulations.
Work must only be carried out when the power supply has been shut off.

9
12 Installation
Attention!
When installing the component, choose a
means of attachment that cannot easily be
detached (e.g. riveting or safety screws).
12.1 Preparation
Before beginning installation, ensure that the identification number given in this installation and opera-
tion manual corresponds to the identification number of the component.
Installing the component requires the following items that are not included in the scope of the delivery:
HST-M2: built-in version (Ident.-No.: 10788, 10823, 11051, 11215, 12090, 12120, 12188,
12242; 12307)
4 screws + M5 nuts from A2-70
HST-M3 and HST-M4: built-in version (Ident.-No.: 10555, 10844, 10649, 11029, 12077,
12288)
6 screws + M5 nuts from A2-70
HST-M: housing version (Ident.-No.: 10342, 10343, 10358, 10334, 10335, 10503, 10504,
10505, 10554, 10560, 10584, 10818, 10985, 11196, 12170, 12261, 12277)
4 screws + up to max. M6 nuts from A2-70 is required
Screw locking devices (toothed lock washers, disc springs, shaft washers, or screw adhesive)
Clean the work environment by removing dirt, grease and oil.
12.2 General approach
Use suitable tools when installing the component. Otherwise, bolts and nuts may become damaged
and unusable.
When tightening the screws listed in section 12.1, do not exceed the max. tightening torque.
Use the items listed in section 12.1 to secure the screw connections.

10
12.3 Installation instructions
Make the mounting holes according to the design of the component. The mounting holes should be
arranged as shown in the diagrams (cf. section 20: Dimensions) and the drilling template.
Built-in version:
To support the delivery of a drilling template assembly is attached.
Figure shows HST-M2 Ident.-No.: 10649
Assembly group
A
Lock
B
M3 screw
C
Protective cap
D
Switch key
E
M5 screws
F
Nut and plate for M5
G
Seal
H
Switch
I
Control panel or machine housing
Remove the keys [D] if necessary by manually actuating the locking element (lifting magnet).
Remove the protective caps [C] after unscrewing the M3 screws [B] from the lock [A].
Pass the HST-M from behind through the mounting holes in the control panel or machine
housing [H].
Attach the HST-M with 4 sufficiently long M5 screws [E] and matching nuts, washers [F].
Secure the screw connection against coming loose.
Carry out the electrical connection (cf. section 12.4)
Attach the protective caps [C] back onto the locks. Take note that the caps for the protection
rest in alignment with the locks [A] for removed keys [D]
No liability is accepted in the event of improper installation!
A
B
C
D
E
H
F
G

11
Housing version:
Figure shows HST-M2 Ident.-No.: 10342
Assembly group
A
Lid screws
B
Housing lid
C
Housing box
D
Wall mounting
Open the housing box [C] by unscrewing the 4 outer lid screws [A] of the housing box [C] and
lift the housing lid [B] from the housing box [C] with the HST-M. Make sure the protective
earthing conductors are not damaged. Securing the housing lid [B] against falling down.
Mount the enclosed wall mounting [D] according to the illustration.
Attach the housing box [C] with suitable screws and nuts if necessary.
Secure the screw connection against coming loose.
Taking the conditions on site into account, create a hole to thread the cables into the housing
box [B] insert a suitable cable gland with a protection class of at least IP 65 (not included in
scope of delivery).
Carry out the electrical connection (cf. section 12.4).
Place the housing lid [B] back on the housing box [C] with the HST-M2 and screw it in place
with the 4 lid screws [A]. Make sure the protective earthing conductors are not squashed or
disconnected.
Attention!
Make sure the protective earthing conduc-
tor is not squashed or disconnected.
No liability is accepted in the event of improper installation!
A
B
C
D

12
12.4 Electrical connection
Attention!
The protective earthing conductor must
always be connected as first head!
The electrical connection of the switching element with locking mechanism HST-M is shown in the
following circuit diagram for:
HST-M2 Ident.-No.: 10343, 10504, 12120, 12242, 12261
HST-M3 Ident.-No.: 10555, 10335, 10818, 10985, 11029, 11196
HST-M4 Ident.-No.: 10505, 10560, 10844, 12170, 12277
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 23 / 24:
rated operating current: max 20 A +24 V / 0 V DC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV DC max. 60 V / 0.5 A
or 24 V / 2 A

13
HST-M2 Ident.-No.: 10342, 10584
HST-M3 Ident.-No.: 10334, 10649
HST-M4 Ident.-No.: 10554
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 25 / 26:
rated operating current: max 20 A 230 V AC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV terminals 23 / 24: DC max. 60 V / 0.5 A
internal wiring or 24 V / 2 A

14
HST-M2 Ident.-No.: 10358
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 23 / 24:
rated operating current: max 20 A +220 V / 0 V DC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV DC max. 60 V / 0.5 A
or 24 V / 2 A

15
HST-M2 Ident.-No.: 10503, 11051; 12307
HST-M3 Ident.-No.: 12077
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 25 / 26:
rated operating current: max 20 A 110 V AC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV terminals 23 / 24: DC max. 60 V / 0.5 A
internal wiring or 24 V / 2 A

16
HST-M2 Ident.-No.: 10788
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 23 / 24:
rated operating current: max 20 A +110 V / 0 V DC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV DC max. 60 V / 0.5 A
or 24 V / 2 A

17
HST-M2 Ident.-No.: 10823
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 23 / 24:
rated operating current: max 20 A +24 V / 0 V DC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV DC max. 60 V / 0.5 A
or 24 V / 2 A

18
terminal block X1 terminal block X2 terminal block X3 terminal block X4
============== ============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 31 / 32: terminals 41 / 42:
rated operating current: max 20 A +24 V / 0 V DC AC max. 230 V / 1,5 A +24 V / 0 V DC
rated surge voltage: max 6 kV DC max. 60 V / 0,5 A
or 24 V / 2 A terminals 43 / 44:
AC max. 230 V / 1,5 A
DC max. 60 V / 0,5 A
or 24 V / 2 A
HST-M1 Ident.-No.: 11215
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF

19
HST-M1 Ident.-No.: 12090
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 25 / 26:
rated operating current: max 20 A 110 V AC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV terminals 23 / 24: DC max. 60 V / 0.5 A
internal wiring or 24 V / 2 A

20
HST-M2 Ident.-No.: 12188
HST-M3 Ident.-No.: 12288
Position 1:
Switch key S1 locked by locking mechanism. Switch S2 is not pressed. Switch position ON
Position 0:
Switch key is unlocked and removed from S1. S2 button pressed. Switch position OFF
Attention:
Before starting up the following points
must be observed:
Check connections to all terminals for tight
connection! Tightening torque: min 0.6 Nm
/ max. 0.8 Nm
Installation housing or installation front
panel grounded at the central grounding
point about the existing blade terminal
connections.
No liability is accepted in the event of improper installation!
terminal block X1 terminal block X2 terminal block X3
============== ============== ==============
rated operating voltage: max. 500 V terminals 21 / 22: terminals 23 / 24:
rated operating current: max 20 A +125 V / 0 V DC AC max. 230 V / 1.5 A
rated surge voltage: max 6 kV DC max. 60 V / 0.5 A
or 24 V / 2 A