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Assembly Instructions
GB
G1MMH, G2MMH
Absolute Encoder – CANopen
9
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 clamp ring screws firmly.
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 disregard may lead to malfunctions, material damage
and personal injury.
13
Danger
Warnings of possible danger.
General instructions
Information on appropriate product handling.
+
General remarks
Additional information
The installation instruction is supplementary to already
existing documentation (e.g. catalog, data sheet, manual).
9-16
It is imperative to read the manual carefully prior to star-
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 connection
The bus cover is to be stored and transported whilst in
the ESD bag only. The bus cover has to fit the case tightly
and has to be firmly secured by screws.
- Unscrew both fixing screws of the bus cover.
0
0
- Loosen both bus cover elements carefully and remove it in
axial direction.
- Adjust participant address at the two decimal rotary
switches. The participant's address for example 23.
- For the last participant the terminators are to be switched
ON
"ON" by means of the 2-pin Dip switch (default OFF).
ON = final user / OFF = user X
1
Baud rate
Dip switch position
1
2
ON
10 kbit/s
OFF
OFF
20
OFF
OFF
1 2 3
50
OFF
ON
125
OFF
ON
250
ON
OFF
500
ON
OFF
800 kbit/s
ON
ON
1 Mbit/s
ON
ON
If the user address 00 the baud rate is programmable via
CAN bus.
Connection – cable gland (bus cover)
- Unscrew cap nut of cable gland. Push cap nut and seal
insertion onto the cable coat.
screen
wire
- Strip isolation of cable coat and cores and cut shielding
foil, if any (picture).
- Bend the braided shield for about 90°.
- Push seal insertion to the braided shield. Insert seal
and cable flush into the cable gland. Secure by carefully
5
18
12
cable
tightening the cap nut.
screen
wire
screen film
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
operation is no longer guaranteed.
Hollow shaft mounting
Mounting with clamping ring
Plug encoder completely onto drive shaft (ISO-fit g7).
Position of the clamping ring has to be set properly to the
clamping ring
hollow shaft slot (see drawing) and tighten clamping ring
firmly.
Mechanical assembly
Slide encoder onto the drive shaft and insert torque pin
into the adjusting element provided by customer or insert
pin into the mounted adusting part (with rubber spring ele-
ment) provided by customer.
drive shaft
(23.5)
(9.5)
15
torque pin
11
- Use cable gland no. 3 for supply only. Cable glands no.
1 and 2 are for optional use as bus lines. Consider the
permitted cable cross-section.
- Use the shortest way to insert the cores into the termi-
nals and mind the maximum core cross-section.
- Use isolated core tip sleeves.
- There must not be any crossing of data lines with lines
for power supply.
Core cross-section
Single wire (rigid)
Fine wire (flexible)
Fine wire (flexible)
3
Cable diameter
OFF
Cable gland 1, 2
ON
OFF
3
Cable gland 3
2
ON
OFF
Terminal assignment cable gland
CAN_L
CAN bus signal (dominant Low)
ON
1
CAN_H
CAN bus signal (dominant High)
OFF
UB
Supply voltage 10...30 VDC
ON
GND
Ground connection relating to UB
+
Terminals of the same significance are internally con-
nected and identical in their functions. Max. load on the
internal terminal connections UB-UB and GND-GND is
1 A each.
- Plug the bus cover carefully onto the D-SUB plug of the
basic encoder, then push it over the rubber seal. Avoid
the case getting wedged. The bus cover has to fit tightly
–
CAN_L
the basic encoder.
CAN_H
UB
- Tighten both fixing screws firmly and conformable.
GND
–
CAN_L
CAN_H
UB
- An optimized connection between encoder case and the
GND
braiding shield of the supply cable is only achieved by
ON
cap nut
cable
a complete and close fit of the bus cover onto the basic
encoder (interlock).
seal
15
Slide encoder onto the drive shaft and insert the extension screw or adjusting angle
provided by customer into the encoder´s rubber spring element.
M5 x 8
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.
7
30
0.3
6.6
x = 56.5 mm (G1) / x = 69.5 mm (G2)
adjustment
piece
x = 50 mm (G1)
5
±0.5
1.25
x = 127,75 mm (G2)
x
rubber spring
20.5
element
torque pin
12
Starting torque
Terminal block/screw terminal max. 0.4 Nm
Screwing - bus cover M4 max. 1.9 Nm
Spring coupling mounting
M3 max. 1.2 Nm / M4 max. 1.9 Nm
Clamping ring mounting M5 max. 6 Nm
Max. 1.5 mm
2
Max. 1.0 mm
2
With isolated ferrule
Dimensions
max. 0.75 mm
G1MMH
2
15
90
8...10 mm (-40...+85 °C)
5...9 mm (-25...+85 °C)
4.5...6 mm
G2MMH
15
ø116
16
28.5
5.2
9
x = 57 (G1)
12
x = 70 (G2)
ø10 (3x)
ø4.3 (3x)
M3x6
ø96
±0.2
3.5
20
M3 x 6
M4 x 8
12.6
1
16
7.5
42.5
13
43
56
20
57.5
13.5
3.5
M3 x 6
7.5
16
44
14.5
43
75
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