EnDat at Channel 1
GB - 7
3.3 Channel 1
3.3.1 Specications
X3A Socket SUB-D15
Interface type EnDat Version 2.1
Parameter channel EIA RS485 half duplex, synchronous serial
Process data channel 1 Vss typical (0,6…1,2V)
Limiting frequency 200 kHz
Increments per revolution
1…2048 Inc (Recommendation: 1024 Inc at rotary speed
< 4500 rpm
Input resistance 120Ω
Clock signal output EIA RS485
3.3.2 Description of X3A
Figure 3.3.2 Socket X3A
5 4 3 2 1
10 9 8 7 6
15 14 13 12 11
Attention ! Plug connector only
when COMBIVERT and supply
voltageareswitchedo!
PIN Name Description
1 – –
2 – –
3 A- SignalinputA-(dierencesignaltoA+)
4 B- SignalinputB-(dierencesignaltoB+)
5 – –
6 Clock+ Clock signal RS485
7 Clock- Clock signal RS485
8 A+ Incremental signals A for counter and direction detection
9 B+ Incremental signals B for counter and direction detection
11 +24V Voltage output
12 +5,25V Power supply for encoder
13 COM Reference potential for supply voltage
14 Data- Data channel RS485-
15 Data+ DatachannelRS485+
– GND Connection for shield at connector housing - is directly connected
with the inverter earth. Connect-up external shield at the respec-
tive connector housing.
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