18 / 60
MKE Synchronous Servomotors
Features and functions
Bosch Rexroth AG
R911414374, Edition 01
6.2.5
Encoder
Table 7: MKE - Technical data of encoder
Designation
Symbol
Unit
Encoder
A
B
C
D
Protocol
Hiperface
EnDat 2.1
Hiperface
EnDat 2.1
Encoder design
Singleturn abso-
lute
Singleturn abso-
lute
Multiturn abso-
lute
Multiturn abso-
lute
Distinguishable rotations
1
1
4,096
4,096
Encoder resolution
12 bit
13 bit
12 bit
13 bit
Number of impulse
128
2,048
128
2,048
System accuracy
''
± 120
± 20
±120
±20
Incremental signals
1Vss
Max. current consumption
I
Encoder
mA
60
150
60
250
Supply voltage
VCC
Encod
er
V
7 ... 12
3.6 ... 14
7 ... 12
3.6 ... 14
Optical encoder Singleturn option A, B
The encoders allow an absolute, indirect position
recording within one mechanical rotation. The
encoders replace additional separate incremental
encoders on the motor.
Remark:
After a voltage drop or after the first
POWER ON, the axis must always be moved to its
reference point first.
Exception: Applications where the maximum
travel is within one mechanical revolution of the
motor.
Optical encoder Multiturn absolute option C,
D
The encoders enable absolute, indirect position
sensing within 4,096 mechanical revolutions.
The encoders replace a separate absolute value
encoder at the motor. The absolute axis position
at this encoder variant is retained by the battery
buffering.
6.2.6
Degree of protection
The protection type according to EN
60529:1991 + A1:2000 + A2:2013 is deter-
mined by the abbreviation IP (International Pro-
tection) and two code numbers for the degree
of protection. The first reference number stands
for the degree of protection against contact and
ingress of foreign bodies, the second one stands
for the degree of protection against ingress of
water.
Standard motors (specification according to type
plate)
•
IP65 with shaft sealing ring
6.2.7
Output shaft, balancing and
extension elements
Shaft end
Table 8: Options according to type code
Shaft
Type
Smooth
G
Keyway, with shaft
sealing ring
P
Smooth shaft
Cylindrical shaft end according to DIN 748-3,
with frontal centering hole with "DS" thread
according to DIN 332-2:1983-05.
