Hardware description
2.2 Interface description
SIMOTION ADI4 - Analog Drive Interface for 4 Axes
Manual, 05/2009, 6FC5 297-0BA01-0BP6
19
● Transmission frequency
Table 2- 8 Transmission frequency
Encoder type Supply voltage Frequency Max.
cable length
Incremental (TTL) 5 V 1 MHz 10 m
500 kHz 35 m
24 V 500 kHz 150 m
Absolute (SSI) 24 V 1.5 Mbits/s 10 m
187.5 Kbits/s 250 m
Note
If cable lengths longer than 25 m or 35 m are needed for incremental encoders, encoder
types with a 24 VDC supply voltage can be used instead.
CAUTION
To ensure error-free transmission of encoder data, do not exceed the maximum cable
lengths shown in these tables.
Encoder supply voltages
The encoder supply voltages must comply with the following specification:
Table 2- 9 Specification of encoder supply voltages
Supply voltage
1)
P5MS P24SSI
Voltage
• Minimum
4.75 V 20.4 V
• Nominal
5 V 24 V
• Maximum
5.25 V 28.8 V
Ripple
• Maximum
50 mV
pp
3.6 V
pp
Current load
• Per encoder connection
0.3 A
• Maximum
1.35 A 1 A
1)
P5MS: Supply voltage for encoder (+5 VDC)
P24SSI: Supply voltage for encoder (+24 VDC)
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