HBM VK20A User manual

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
VK20A

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-0102.0008
DVS: A02335_03_Y00_00 HBM: public
11.2019
EHottinger Baldwin Messtechnik GmbH.
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Änderungen vorbehalten.
Alle Angaben beschreiben unsere Produkte in allgemeiner
Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits
garantie dar.
Sous réserve de modifications.
Les caractéristiques indiquées ne décrivent nos produits
que sous une forme générale. Elles n'impliquent aucune
garantie de qualité ou de durabilité.

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
VK20A

2A02335_03_Y00_00 HBM: public VK20A
English
1 Safety instructions 3........................................
2 Markings used 5............................................
2.1 The markings used in this document 5..........................
2.2 Symbols on the product 5.....................................
3 Application 6...............................................
4 Installation 7...............................................
4.1 Dimensions 7...............................................
4.2 Mechanical design 8.........................................
5 Electrical connection 9......................................
5.1 Connection cable for evaluation electronics 9....................
5.1.1 Mechanical connection of the connector cables 12................
5.1.2 Electrical connection of T20WN, T21WN (St1 and St2) 14..........
5.1.3 Electrical connection of T22 (St1 and St2) 15.....................
5.1.4 Electrical connection of the voltage supply (St7) 16................
5.1.5 Electrical connection of torque output Md [V] 17...................
5.1.6 Electrical connection of torque output Md [I] 17...................
5.1.7 Electrical connection of speed/angle of rotation output (n/) 18.......
5.1.8 Functional check 19...........................................
5.1.9 Control signal (T20WN, T21WN) 19.............................
6 Specifications 21............................................
7 Accessories 23..............................................

Safety instructions
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1 Safety instructions
Appropriate use
To ensure safe operation, the junction box may only be used as described in
the mounting instructions. It is also essential to follow the respective legal and
safety regulations for the application concerned during use. The same applies
to the use of accessories.
The junction box is not a safety element in terms of appropriate use. For cor
rect and safe operation of this junction box, it is essential to ensure appropriate
transportation, storage, installation, and fitting and to operate and maintain all
equipment with care.
General dangers of failing to follow the safety instructions
The junction box corresponds to the state of the art and is safe to operate. If
the junction box is used and operated inappropriately by untrained personnel,
residual dangers may arise.
Everyone responsible for installing, starting up, maintaining or repairing the
junction box needs to have read and understood the operating manual and in
particular the safety instructions.
Residual dangers
The scope of performance and supply of the junction box covers only part of
the connection technique. In addition, equipment planners, installers and oper
ators should plan, implement and respond to the safety engineering considera
tions of the connection technique in such a way as to minimize residual dan
gers. Prevailing regulations must be complied with at all times. Residual
dangers connected with the connection technique need to be pointed out.
Qualified personnel
The junction box may be used by qualified personnel only, the specifications
and the special safety requirements and regulations need to be followed in all
cases. It is also essential to observe the appropriate legal and safety regula
tions for the application concerned during use. The same applies to the use of
accessories.

Safety instructions
4A02335_03_Y00_00 HBM: public VK20A
Qualified personnel means. personnel familiar with the installation, fitting, start
ing up, and operation of the product and trained according to their job.
Conditions on site
Protect the junction box from dirt and humidity.
Maintenance
The junction box provides IP65 protection (protection against dust and water
jets). Make regular checks to ensure the tightness and efficiency of the rubber
lid seal and the screw fittings.
Prevention of accidents
The prevailing accident prevention regulations must be observed.
Unauthorized conversions and modifications are prohibited
HBM's express consent is required for modifications affecting the equipment's
design and safety. HBM does not take responsibility for damage resulting from
unauthorized modifications.
It is strictly forbidden to carry out any repairs and soldering work on the moth
erboards or to replace any components. Repairs may only be carried out by
persons authorized by HBM.
SDuring installation and when connecting the cables, take action to prevent
electrostatic discharge as this may damage the connected electronics.
SWhen connecting additional devices, comply with the safety requirements
for electrical measurement, control, regulatory and laboratory equipment
(EN 61010).
SAll the interconnecting cables must be shielded cables. The shield must be
connected extensively to ground on both sides.

Markings used
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2 Markings used
2.1 The markings used in this document
Important instructions for your safety are specifically identified. It is essential to
follow these instructions in order to prevent accidents and damage to property.
Symbol Significance
CAUTION This marking warns of a potentially dangerous
situation in which failure to comply with safety
requirements can result in slight or moderate physical
injury.
Notice This marking draws your attention to a situation in
which failure to comply with safety requirements can
lead to damage to property.
Emphasis
See….
Italics are used to emphasize and highlight text and
references to other chapters and external documents.
2.2 Symbols on the product
CE mark
The CE mark enables the manufacturer to guarantee that
the product complies with the requirements of the rele
vant EC directives (the declaration of conformity is avail
able at http://www.hbm.com/HBMdoc).
Statutory marking requirements for waste disposal
National and local regulations regarding the protection of
the environment and recycling of raw materials require
old equipment to be separated from regular domestic
waste for disposal.
For more detailed information on disposal, please contact
the local authorities or the dealer from whom you pur
chased the product.

Application
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3 Application
The VK20A junction box enables T20WN, T21WN and T22 torque transducers
to be connected to HBM measurement electronics. If the measurement elec
tronics do not feed supply voltage, the junction box needs to be powered by a
24 V power source (14 V...30 V) to St7.

Installation
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4 Installation
4.1 Dimensions
138
150
approx. 25
23.5
53
6
Ø 4.4
40
18.25
A
23.5
View A
65
18.25
53.5
approx. 25
Dimensions (in mm;
1 mm = 0.03937 inches)
Fig. 4.1 Dimensions

Installation
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4.2 Mechanical design
St1 St2 St3 St4
St7 St6 St5
16161616
616161
Md [V]
n
External control signal
T20WN
T21WN
T22
Supply
voltage
St8 Md [I])
Fig. 4.2 Connection clamps in the opened VK20A junction box

Electrical connection
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5 Electrical connection
5.1 Connection cable for evaluation electronics
HBM provides the following connector cables for connecting the T20WN,
T21WN and T22 through the VK20 junction box to the evaluation electronics:
S1-KAB 151A-1.5 (15‐pin D‐sub connector (male) - free ends)
S1-KAB 152-1.5 (SUBCON5 - free ends)
VI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
YE
BK
BU
BU/RD
WH
PK
GY/PK
GY
GN
BN
RD
1-KAB151A-1.5 1-KAB152-1.5
1
2
3
4
5
bared
BK
BU
WH
RD
GN
Shield
Fig. 5.1 Cable for connecting to the evaluation electronics
The cable configuration is adjusted to the system device to be connected. In
the junction box housing, there is an instruction leaflet with the connection dia
gram for the various HBM system devices (see both parts of Fig. 5.2).

Electrical connection
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For a simple overview, the cable wire colors of the previous cable KAB151 and
those of the current cable KAB151A are compared.
Connector 3 Connector 4 Connector 5 Connector 6
Old Old
New New
Continuation of the figure on next page

Electrical connection
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T20WN T21WN T22
Fig. 5.2 Connection diagram for the various HBM system devices

Electrical connection
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5.1.1 Mechanical connection of the connector cables
The junction box includes a set of cable sleeves, intended for bushing the
transducer connection cable, the voltage supply and the Md/n outputs. The
side hole for the external control signal is closed with a screw for delivery. If
need be, use a suitable PG7 screwed joint with an anti‐buckling socket.
Anti‐buckling socket,
internal Ø 7 mm
Clamping ring
T20WN, T21WN, T22
Power
Cable shield
looped round
clamping ring
Anti‐buckling
socket, internal
Ø 5 mm
Cable sleeve
Rubber seal Wall of the housing
Fig. 5.3 Cable bushing ”T20WN, T21WN, T22” and ”POWER” at the junction box

Electrical connection
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Wall of the housing
Clamping ring Anti‐buckling socket,
internal Ø 8.5 mm
Cable shield
looped round
clamping ring Clamping ring
Outer sheath of cable
Earth sleeve
Stranded filler wire
of the internal
cable shields Cable shield
Detail X
1-KAB 151A-1.5
Fig. 5.4 Cable bushing ”Md” and ”n/ ” at the junction box

Electrical connection
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5.1.2 Electrical connection of T20WN, T21WN (St1 and St2)
A
B
C
D
E
F
G
J
H
L
M
K
Pin Wire
color
Strip
terminal/
terminal
VK20A
Function I/O1)
A BK St1/1 None -
B RD St2/1 Measurement signal: speed/
angle of rotation
I
C BN St1/3 Measurement signal: torque
±10 V
I
D WH St1/4 0 V; I
E YE St1/5 Supply voltage 0 V O
F VT St1/6 Supply voltage 12 V O
G GN St1/2 Measurement signal: speed/
angle of rotation (90°phase
shifted)
I
H PK St2/2 None -
J GY St2/3 None -
K GY/
PK
St2/4 Trigger control signal O
L BU/
RD
St2/5 None -
M BU St2/6 Cable shielding -
Tab. 5.1 Transducer connection T20WN, T21WN
1) O=Output; I=Input

Electrical connection
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5.1.3 Electrical connection of T22 (St1 and St2)
A
B
C
D
E
F
G
J
H
L
M
K
Pin Wire
color
Strip
terminal/
terminal
VK20A
Function I/O1)
A BK St1/1 None -
B RD St2/1 None -
C BN St1/3 Measurement signal:
torque"5V
I
D WH St1/4 Ground (torque) I
E YE St1/5 Ground (supply) O
F VT St1/6 Supply voltage
+11.5 V … 30 V
O
G GN St1/2 None -
H PK St2/2 None -
J GY St2/3 None -
K GY/
PK
St2/4 None -
L BU/
RD
St2/5 Measurement signal: torque
10"8 mA I
M BU St2/6 Cable shielding -
Tab. 5.2 Connection T22
1) O=Output; I=Input

Electrical connection
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5.1.4 Electrical connection of the voltage supply (St7)
Strip terminal/
terminal
Function I/O1)
St7 /1 0 V; 2) O
/2 control signal (external trigger 0 V; ) I
/3 control signal (external trigger 5 V … 30 V) I
/4 24 V3) O
/5 Supply voltage VK20 24 V (14 … 30 V)4) I
/6 Supply voltage 0 V; I
Tab. 5.3 Connector pin assignment St7
1) O=Output; I=Input
2) Linked internally with St7/Pin6. Can be bridged with St7/Pin2 if necessary.
3) Linked internally with St7/Pin5. Can be used for triggering the control signal if necessary.
4) In conjunction with MGCplus through St3/1.

Electrical connection
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5.1.5 Electrical connection of torque output Md [V]
Strip terminal/
terminal
Function I/O1)
St3 /1 Supply voltage 14 V … 30 V (alternative to St7/5) I
/2 None -
/3 None -
/4 None -
/5 None -
/6 None -
St4 /1 None -
/2 Supply voltage 0 V; I
/3 Measurement signal: torque 0 V; O
/4 None -
/5 None -
/6 Measurement signal: torque "10 V O
Tab. 5.4 Connector pin assignment St3 and St4
5.1.6 Electrical connection of torque output Md [I]
Strip terminal/
terminal
Function I/O1)
St8 /1 Ground O
/2 Measurement signal: torque 10"8 mA O
Tab. 5.5 Connector pin assignment St8
1) O=Output; I=Input

Electrical connection
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5.1.7 Electrical connection of speed/angle of rotation output (n/ )
Strip terminal/ ter
minal
Function I/O1)
St5 /1 Measurement signal: speed/angle of rotation 0 V; O
/2 None -
/3 None -
/4 Measurement signal: speed/angle of rotation 5 V (+) O
/5 Measurement signal: speed/angle of rotation 5 V (-) O
/6 Measurement signal: speed/angle of rotation 5 V (-);
90°phase shifted
O
St6 /1 Measurement signal: speed/angle of rotation 5 V (+);
90°phase shifted
O
/2 None -
/3 None -
/4 None -
/5 None -
/6 None -
Tab. 5.6 Connector pin assignment
1) O=Output; I=Input