Stober PK - Page 399

The One Cable Solution offers the following advantages:
• Significantly reduced wiring effort by eliminating the encoder cable
• For cable lengths up to 50m, a choke between the drive controller and motor is not necessary
• Advanced safety functions possible (up to SIL2 / category 3, PLd)
• Significantly reduced space requirements by eliminating the encoder plug connector
• Transmission of measured values from the temperature sensor using the EnDat 3 protocol
A motor with the EnDat 3 encoder can be operated only on a SI6 or SC6 drive controller from STOBER.
The EnDat 3 encoder has the following features:
Encoder model Code Measur-
ing
method
Recordable
revolutions
Resolu-
tion
Position values
per revolution
MTTF
[years]
PHF [h]
EnDat 3 EQI 1131 Q7 Inductive 4096 19 bit 524288 > 100 ≤15×10
-9
11.6.4.4 EnDat 2 encoders
In this chapter, you can find detailed technical data for encoder models that can be selected with EnDat in-
terface.
Encoders with EnDat 2.2 interface
Encoder model Code Measur-
ing
method
Recordable
revolutions
Resolu-
tion
Position values
per revolution
MTTF
[years]
PHF [h]
EnDat 2.2 EQI 1131 Q6 Inductive 4096 19 bit 524288 > 100 ≤15×10
-9
EnDat 2.2 EBI 1135 B0 Inductive 65536 18 bit 262144 > 100 ≤600×10
-9
EnDat 2.2 ECI 1118-G2 C5 Inductive – 18 bit 262144 > 76 ≤1.5×10
-6
EnDat 2.2 EQN 1135
FMA
M3 Optical 4096 23 bit 8388608 > 100 ≤15×10
-9
EnDat 2.2 EQN 1135 Q5 Optical 4096 23 bit 8388608 > 100 ≤15×10
-9
EnDat 2.2 ECN 1123
FMA
M1 Optical – 23 bit 8388608 > 100 ≤15×10
-9
EnDat 2.2 ECN 1123 C7 Optical – 23 bit 8388608 > 100 ≤15×10
-9
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 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.
• MTTF = Average time before dangerous failure. MTTF values greater than 100years were reduced in
accordance with DINENISO13849.
• PFH = Probability of a dangerous failure per hour
• The EnDat 2.2 EBI 1135 encoder requires an external buffer battery so that absolute position informa-
tion is retained after the power supply is turned off (AES option for STOBER drive controllers).
• Multiple revolutions of the motor shaft can be recorded only using multi-turn encoders.
11 EZsynchronous servo motors 11.6 Product description
399