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Precautions
This products is not designed or rated for ensuring safety of
persons.
Do not use it for such purpose.
1. Do not impose voltage exceeding the rated voltage range on the
E6C2-C, otherwise the E6C2-C may be damaged.
2. Be sure that the wiring of power supply to the E6C2-C is correct,
otherwise the E6C2-C may be damaged.
3. Turn off the Rotary Encoder when wiring.
4. Do not wire power lines or high-tension lines along with the power
supply lines of the E6C2-C Rotary Encoder or the E6C2-C
Rotary Encoder may be damaged or malfunction.
■ Precautions for Safe Use
Mounting
Be careful not to spray water or oil onto the E6C2-C Rotary Encoder.
The E6C2-C Rotary Encoder consists of high-precision components.
Handle with utmost care and do not drop the Rotary Encoder, other-
wise malfunctioning may result.
Do not pull the cable of the E6C2-C Rotary Encoder after the E6C2-
C Rotary Encoder is mounted to a panel. Do not apply any shock to
the hollow shaft or the body.
When the E6C2-C Rotary Encoder is used in reversed operation,
pay utmost attention to the mounting direction of the E6C2-C Rotary
Encoder and the directions of increment and decrement rotation.
To match phase Z of the E6C2-C Rotary Encoder and the origin of
the device to be connected to the E6C2-C Rotary Encoder, conform
the phase Z outputs while connecting the device.
Be careful enough not to impose an excessive load on the shaft if
the shaft connects to a gear.
If the Rotary Encoder is mounted with screws, the tightening torque
must be approximately 0.5 N·m.
If the Rotary Encoder is mounted to a panel, do not pull the cable
with more than a force of 30 N.
E6C2-C
Mounting plate
No shock must be given to the shaft or coupling. Therefore, do not
hit the shaft or coupling with a hammer when inserting the shaft into
the coupling.
Refer to the following illustrations when using a standard coupling.
Decentering
tolerance
Declination
tolerance
Displacement
tolerance in the
shaft direction
E6C2-C
10
WARNING
Cable
30 N max.
0.15 mm max.
2° max.
0.05 mm max.
Incremental Rotary Encoder
When connecting or disconnecting the coupling, do not impose an
excessive bending, pressing, or pulling force on the E6C2-C.
When connecting the shaft of the Rotary Encoder with a chain timing
belt or gear, connect the chain timing belt or gear with the shaft via
the bearing and coupling as shown in the following illustration.
Chain sprocket
Bearing
Coupling
If the decentering or declination value exceeds the tolerance, an
excessive load imposed on the shaft may damage the Rotary
Encoder or shorten the life of the Rotary Encoder.
Life of Bearing
The following graph shows the life expectancy of the bearing with
radial and thrust loads imposed on the bearing. (Theoretical)
30 N
20 N
40 N
Encoder
Shaft
Wr: Radial load
Ws: Thrust load
0
10
Mounting Procedure
1. Insert the shaft into the coupling.
Do not secure the coupling and shaft with screws at this stage.
2. Secure the Rotary Encoder.
Refer to the following table for the maximum insertion length of
the shaft into the coupling.
Model
E69-C06B
5.5 mm
E69-C06M
8.5 mm
3. Secure the coupling.
Model
E69-C06B
0.25 N·m
E69-C06M
0.7 N·m
4. Connect the power and I/O lines.
Be sure to turn off the Rotary Encoder when connecting the lines.
5. Turn on the Rotary Encoder and check the output.
E6C2-C
10 N
30
40
50
20
Radial load Wr (N)
Maximum insertion length
Tightening torque
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