Encoders with EnDat 2.1 interface
Encoder model Code Mea-
suring
metho
d
Recordable
revolutions
Resolu-
tion
Position val-
ues per revo-
lution
Periods per
revolution
MTTF
[years]
PHF [h]
EnDat 2.1 ECI 119 C4 Induc-
tive
– 19 bit 524288 Sin/cos 32 > 57 ≤2×10
-6
EnDat 2.1 EQN
1125 FMA
M2 Optical 4096 13 bit 8192 Sin/cos 512 > 57 ≤2×10
-6
EnDat 2.1 EQN
1125
Q4 Optical 4096 13 bit 8192 Sin/cos 512 > 57 ≤2×10
-6
EnDat 2.1 ECN
1113 FMA
M0 Optical – 13 bit 8192 Sin/cos 512 > 57 ≤2×10
-6
EnDat 2.1 ECN
1113
C6 Optical – 13 bit 8192 Sin/cos 512 > 57 ≤2×10
-6
Notes
• The encoder code is a part of the type designation of the motor.
• FMA = Version with fault exclusion for mechanical coupling.
• Encoders with EnDat 2.2 interface and in the FMA design are ready for operation as a one-encoder so-
lution on a safety-related position measuring system with an EnDat 2.2 interface
• Multiple revolutions of the motor shaft can be recorded only using multi-turn encoders.
13.2 Connection to B&R drive controllers 13 Connecting to drive controllers of third-party manufacturers
424