Description Of The Encoder Interfaces; Figure 5 Encoder Cable Length - KEB COMBIVERT S6 Instructions For Use Manual

8.5 Description of the encoder interfaces
PIN Signals Description
1, 2, 3, A+/- Only channel A:
4 B+/-
Input for two sine-wave, shifted by 90° differential signals with 1 Vpp, maximum 200 kHz.
Cos+/-
Single-ended (e.g. Cos+ against GND):
Sin+/-
Constant component 2.5 V ±0.5 V
Differential (e.g. Cos+ against Cos-):
Constant component 0 V ±0.1 V
signal level Uss=0.6 V...1.2 V
Channel A:
Input for square-wave incremental signals according to RS485 maximum 200 kHz.
Channel B:
Input for square-wave incremental signals according to RS485 maximum 500 kHz.
Incremental encoder simulation: Position changes of channel A are output to channel B with
two 90° shifted RS485 signals.Maximum output frequency 500 kHz.
5, 6 N+/- Only channel A:
Data+/-
Input zero signal once per revolution.
Differential signal level (N+ ... N-):
• higher 50 mV: zero signal is active
• from 50 mV to -50 mV: undefined
• lower -50 mV: zero signal is inactive
Signal length 330°...360° of the signal length of the incremental signals.
Channel A and B:
Input zero signal or data RS485.
Zero signal is 1-active, if signals A and B are also 1-active.
only channel B:
Output zero signal RS485.
Zero signal is 1-active, if signals A and B are also 1-active.
Is output, if the position on channel A is 0°.
10, 11, Sin+/- Only channel A:
12, 13 Cos+/-
Input for sinusoidal absolute signals
Sin_abs+/-
Uss=1 V for SinCos encoder
Cos_abs+/-
Uss=3.8 V maximum for resolver
10, 12 Clock+/- Output for clock signal RS485
14, 15 Exciter+/- Only channel A:
Output field voltage for resolver:
Ueff=2.54 V ≙ Uss=7.2 V ±5 %; max. Ieff=30 mA; 10 kHz
Coupling factor for resolver: 0.5 ±10 %
Phase shifting 0° ±5°
ma_dr_s6-cu-a-inst-20109645_en
max. encoder cable length =
Figure 5: Encoder cable length
The supply voltage depends on the set encoder. The other values can be found in
the data sheet of the encoder and the encoder cable.
Encoder interfaces | 8
voltage supply - min. encoder voltage
max. encoder current • 2 • wire resistor per meter
33