Parker Hannifin S.p.A. - Divisione S.B.C. LVD User’s Manual
21
2.7 Signal cable connections
A twisted and screened pair must be employed for the analogue reference.
The cable for simulated encoder signals must comprise three twisted pairs with a common
screen.
Screened cables are recommended also for digital inputs and outputs.
Minimum size of all signal wires is 0.35 mm
2
2.8 Signal cable connection diagram
CONTROL
LVD
REF+
REF-
A
/A
B
/B
C
/C
8
7
X7 - Reference in
15
1
2
3
4
5
6
7
X4 - Encoder out
24Vdc
x
1
5
X7 - Inputs
1
X6 - Outputs
TO EARTH BUSBAR
4
AXIS
Encoder in
Enable
Input
Reference
Output with
contact
12
voltage free contact output
( drive ok )
2.9 Frequency input connection
The RS422 type frequency input can be software-configured in two modes: the first
(default) to accept quadrature signals from encoders, the second is frequency/direction mode
(refer to the chapter
Fundamental parameters
bit b42.5).
In the former case follow this connection diagram: