Assembly Instructions
GB
GBA2S, GBM2S
GXA2S, GXL2S, GXM2S
Absolute Encoder – SSI
9
Spring coupling
133.5
63.75
20.5
95.75
20.5
53.5
All movable adjusting elements need tolerance in both
axial and radial direction in order to equalize shifts by
temperature and of mechanical nature. Tighten both fixing
and clamping ring screws firmly.
Starting torque
Spring coupling mounting max. 1.2 Nm
Clamping ring mounting M3 max. 1.2 Nm
13
Danger
Warnings of possible danger.
General instructions
Information on appropriate product handling.
General remarks
Additional information
The installation instruction is supplementary to further
documentation (e.g. catalog, data sheet, manual).
It is imperative to read the manual carefully prior to star-
9-16
ting the device.
Appropriate use
- The encoder is a precision measuring device. It is expli-
citly designed for registration of angular positions and
revolutions as well as evaluation and supply of measu-
ring values as electric output signals for the subsequent-
ly connected device. The encoder must not be used for
any other purpose.
Start up
- Installation and assembly of the encoder only by electri-
cally skilled and qualified personnel.
- Consider also the operation manual of the machine
manufacturer.
Safety instructions
- All electrical connections are to be revised prior to star-
ting the system.
- Incorrect assembly and electrical connections or any
other inappropriate work at encoder and system may
lead to malfunction or failure of the encoder.
- Any risk of personal injury, damage of the system or
company equipment due to failure or malfunction of the
encoder has to be eliminated by corresponding safety
measures.
- Do not operate encoder beyond the limit values stated
in the data sheet.
Any disregard may lead to malfunctions, material damage
and personal injury.
10
Electrical installation
- Do not modify encoder in any electrical way and carry
out any wiring work under power supply.
- Any electrical connection and plugging-on whilst under
power supply is not permitted.
- A separate encoder supply has to be provided with con-
sumers with high interference emission.
- Installation of the whole system has to be according
to EMC standards. Installation environment as well as
wiring have an impact on the encoder's EMC. Encoder
and supplying lines are to be in separated locations or
remote from lines with high interference emission (fre-
quency transformers, protections, etc.).
- Encoder case and supply cable have to be completely
screened.
- Ground (PE) encoder by using screened cables. The
braided shield has to be connected to cable gland or
plug. Grounding (PE) on both sides is recommended.
Ground the case by the mechanical assembly, if latter
is electrically isolated a second connection has to be
provided. Ground cable screen by the subsequently
connected devices. In case of ground loop problems at
least grounding on one side is imperative.
- Any outputs not used must not be connected. Unused
cable cores have to be isolated. Max. allowed bending
radius of cable: 90 mm
Any disregard may lead to malfunctions, material damage
and personal injury.
Assignment – M23-Connector
Whilst not connected, the plug is always to be sealed by
the plastic cover provided by the manufacturer upon de-
livery. Appropriate mating connectors available as spare
part or with different cable length, please refer to acces-
sories. In case of customer-specific length use only scree-
ned cable and connectors corresponding to EMC stan-
dards. Consider the wiring instructions of the respective
supplier.
- Press mating connector softly onto the plug.
- Turn mating connector until the code-mark is interlo-
cking the corresponding space provided by plug.
- Insert bushing completely.
- Tighten the nut as far as possible.
14
Disposal
Encoder components are to be disposed of according to
the regulations prevailing in the respective country.
Transport and storing
- In original packing only.
- Do not drop or expose encoder to major shocks.
Assembly
- Open clamping ring completely before mounting the
encoder.
- Avoid punches or shocks on case and shaft.
- Avoid case distortion.
- Do not open or modify encoder in any mechanical way.
- The spring arm of the spring coupling has to be free
movable.
Hollow shaft, bearing, glass disc or electronic
components might be damaged and a secure
clamping ring
operation is no longer guaranteed.
Hollow shaft mounting
Mounting with clamping ring
Plug encoder completely onto drive shaft (ISO-fit f7) and
tighten clamping ring firmly (max. 1.2 Nm). The drive shaft
must penetrate the encoder's hollow shaft to a depth of at
drive shaft
least 35 mm.
Mechanical assembly
(23.5)
Slide encoder onto the drive shaft and insert torque pin in-
(9.5)
15
to the adjusting element provided by customer or
insert pin into the mounted adusting part (with rubber
spring element) provided by customer.
torque pin
adjustment piece with
4
torque pin 9.5 mm
5
±0.5
40.5
R37.25
R43.5
25°
2.5
30°
22
rubber spring
67°
20.5
element
11
Terminal assignment
Connector
Core colour
Assignment
8
9
1
Pin 1
brown
UB
12
10
2
7
Pin 2
black
GND
Pin 3
blue
Clock+
3
6
11
4
Pin 4
beige
Data+
5
Pin 5
green
Zero setting
Pin 6
yellow
Data-
Pin 7
violet
Clock-
Pin 8
brown/yellow
DATAVALID / UBminOK
Pin 9
pink
UP/DOWN
Pin 10
black/yellow
DATAVALID MT
Pin 11-12
–
–
Dimensions
15 (9.5)
58
20
49.5
7.5
ø12-15 H7 x 35
17
12
30
15
Spring coupling
Fasten spring coupling at the fixing holes provided on housing by means of screws.
Slide encoder onto the drive shaft and fasten spring coupling at the surface provided
with screws.
30
7
6.6
0.3
M3
(1.2 Nm)
30
19.1
10
7.6
15.1
M3 (1.2 Nm)
SW2.5
81
73
adjustment
piece
1.25
M3 (1.2 Nm)
M3 (1.2 Nm)
SW2.5
SW2.5
torque pin
12
M3x6 (1.2 Nm)
Terminal assignment incremental tracks | sine/cos
Connector
Core colour
Pin 1
brown
Pin 2
white
Pin 3
blue
Pin 4
green
Pin 5
grey
Pin 6
yellow
Pin 7
red
Pin 8
red/blue
Pin 9
pink
Pin 10
violet
Pin 11
black
Pin 12
grey/pink
An optimized connection between encoder case and the
braided shield of the connection cable is only achieved by
the braided shield being placed generously onto the con-
nector and the nut being secured firmly. Please use cores
twisted in pairs (for example clock+/clock-) for extension
cables of more than 10 m length.
49.5
7.5
16
16
80
73
62
SW2.5
M3x6 DIN912
77
68
M4x6 (1.9 Nm)
Assignment
incremental
sine/cos
UB
UB
GND
GND
Clock+
Clock+
Data+
Data +
Zero setting
Zero setting
Data-
Data-
Clock-
Clock-
Track B inv.
Cosine
UP/DOWN
UP/DOWN
Track A inv.
Sine
Track A
Sine
Track B
Cosine