Connecting
3.1 Wiring and block diagram
ET 200SP F-TM Count 1x1Vpp sin/cos HF (6ES7136-6CB00-0CA0)
26 Equipment Manual, V1.0, 01/2021, A5E47073911-AA
Encoder signals/count signals
The encoder must be a 1Vpp sin/cos encoder. Encoder signal names are defined by the
encoder manufacturer and can differ from the signal names used in this manual. Signals
herein are designated with the letters A, A/, B, B/, N and N/. A, B and N inputs are differential
pairs driven by the encoder. The signals are sinusoidal (or sinusoids) centered at 2.5 VDC.
Monitoring for wire break is possible with this type of encoder/sensor. You can connect the
following encoder types:
• Incremental 1Vpp encoder centered at 2.5 V DC with N signal:
The A, B and N signals are connected using the correspondingly marked terminals. The
A and B signals are the two 90° phase-shifted differential signals. N is the zero-mark signal
that supplies one pulse per revolution.
• Incremental 1Vpp encoder centered at 2.5 V DC without N signal:
The A and B signals are connected using the correspondingly marked terminals. The
A and B signals are the two 90° phase-shifted differential signals. The N terminal remains
unconnected.
Immunity
Failure to use properly shielded cable will result in degraded performance of the
module because of lack of immunity.
To meet noise immunity standards, it is necessary to use cable (article number 6FX8008-
1BD31-XXXX) sold by the meter for cable lengths greater than 1 meter or equivalent.
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