03/12 EM-ABS-01 for ACU 33
Note: If the data track cannot be evaluated, error “F1719 Di
. encoder: Protocol
error” will be triggered. In this case, check
Tracks/Protocol 1184 setting.
Note: When the frequency inverter is turned on, the absolute position is read via
the data tracks. Via the incremental tracks, the position is counted up in-
ternally and compared to the updated absolute position at regular inter-
vals. This
uarantees a very hi
h positionin
and speed accuracy at all
supported transmission rates.
6.4 EnDat 2.1 encoders
This chapter describes how EnDat 2.1 encoders are commissioned.
Note: Only EnDat 2.1 encoders with SinCos tracks can be connected.
Note: The EM-ABS-01 module supports, in the case of EnDat 2.1 encoders, a
baud rate of 100 kBit/s. Other baud rates will not be supported.
Step 1: Install the EM-ABS-01 as described in chapter 5.2. Do not connect the encod-
er cable yet.
Step 2: Turn the frequency inverter on for parameter configuration (mains voltage or
DC 24 V).
Step 3: Configure the frequency inverter according to the following parameters.
• Adjust the Division marks 1183 accordin
to the encoder data sheet (see
Chapter 8.4.1), in the case of EnDat 2.1 encoders, the value is typically 512
amplitudes/turn, (e.g. Heidenhain ECN 1
113, EQN 1125).
• Set
Tracks/Protocol 1184 to value 1101 (please see chapter 8.4.2).
• Adjust the
Supply voltage 1187 accordin
to the encoder data sheet (see
Chapter 8.4.4), in the case of EnDat 2.1 encoders, th
e value is typically 5.0V.
• Adjust
Power supply 1186 according to the connections (see chapter 8.4.3).
Bonfiglioli Vectron recommends evaluating the sense line (settings: “5-intern,
Sense” or “6-Via X410A, Sense”).
Attention: Always set the
Supply voltage 1187 first and then set Powe
supply
1186.
• If the encoder is used as a motor encoder for a synchronous servomotor, set
Offset 1188 according to chapter 8.4.6. This step is not required in the case
of asynchronous motors or if the encoder is used as an application encoder.
Note:
Parameters
Bits/Turn 1271 and Bits Multiturn 1272 have no function in
the case of EnDat 2.1 encoders. The required data is exchanged directly
between the encoder and inverter.
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