Additional system components
7.3 Sensor Module Cabinet-Mounted SMC30
SINAMICS DCM DC Converter
220 Operating Instructions, 12/2018, A5E34763375A
Table 7- 18 Technical data
Voltage
Current (without encoder system)
Current (with encoder system)
V
DC
A
DC
A
DC
24 DC (20.4 – 28.8)
≤ 0.20
≤ 0.55
Encoder system power supply
Voltage
V
encoder
5 V DC (with or without Remote Sense)
1)
or V
DC
- 1 V
Encoder frequency that can be evaluated
encoder
kHz ≤ 300
2)
On enclosure with M4/1.8 Nm screw
Ventilation clearances, above/below
A controller compares the encoder system supply voltage – sensed via the Remote Sense cables – with the reference
supply voltage of the encoder system, and adjusts the supply voltage for the encoder system at the output of the drive
module until the required supply voltage is obtained directly at the encoder system (only for 5 V encoder system power
supply). Remote Sense only to X520.
2)
See the diagram "Maximum cable lengths depending on the SSI baud rate for SSI encoders"
Connectable encoder systems
Table 7- 19 Specification of encoder systems that can be connected
High signal level
(TTL bipolar at X520 or X521/X531)
1)
U
Hdiff
2 5 V
Low signal level
(TTL bipolar at X520 or X521/X531)
1)
U
Ldiff
-5 -2 V
High signal level
(HTL unipolar)
U
H
High 17 V
CC
V
CC
Low signal level
(HTL unipolar)
U
L
High signal level
2)
U
Hdiff
3 V
CC
V
Low signal level
2)
U
Ldiff
-V
CC
-3 V
High signal level
(SSI bipolar at X520 or X521/X531)
1)
U
Hdiff
2 5 V
Low signal level
(SSI bipolar at X520 or X521/X531)
1)
U
Ldiff
-5 -2 V
min