Inovance SV660P Series, Hardware Manual

Page: 110 / 156

Wiring
‑109‑
Figure 3‑33 Diagram of shielded twisted pairs
I/O signal layout
I/O signals include DI/DO signals and relay output signals.
Observe the following requirement during control circuit wiring:
Route the control circuit cables and main circuit cables or other power cables through
different routes with a distance of at least 30 cm. Failure to comply may result in
disturbed I/O signals.
3.8.2 Position Reference Input Signals
For descriptions of position reference input signals, see
“
Table 3–7
”
on page 80 .
The reference pulses and signs on the host controller side can be outputted through
the differential drive or open‑collector. The following table lists the maximum input
frequency and minimum pulse width.
Table 3–30 Relation between pulse input frequency and pulse width
Pulse Mode
Maximum Frequency
(pps)
Minimum Pulse
Width (us)
Low‑speed
Differential 200 k 2.5
Open‑collector
200 k 2.5
High‑speed differential
4 M 0.125
Note
●
You can either use high‑speed pulses or low‑speed pulses, but not both of them
together.
●
If the output pulse width of the host controller is smaller than the minimum pulse
width, a pulse receiving error will occur on the drive.
●
The symbol represents shielded twisted pairs.
Low-speed pulse reference input
●
Differential mode