R.T.A. s.r.l. – XPETME05 – 11/20
18/29
10 - LOGIC INTERFACING EXAMPLES
In this chapter some interfacing techniques are shown. They have to be considered only as examples. The
best way to interface the drive with the control system can be chosen only with a complete knowledge of
control system and application needs.
Note:
The following interfacing examples MUST NOT be used with STO1, STO2 inputs and MONITOR
output.
X-PLUS ET
SERIES DRIVE
OUTPUT
V+
CONTROL
SYSTEM
PNP INPUT
CONTROL
SYSTEM
NPN INPUT
X-PLUS ET
SERIES DRIVE
OUTPUT
V+
V+ < 45 Volt
Fig. 8 – Interfacing a X-PLUS ET logic output and an input of a control system operating at V+
voltage.
X-PLUS ET
SERIES DRIVE
OUTPUT
V+
V+ < 45 Volt
I < 50 mA
Fig. 9 – Driving a micro-relay by means of a X-PLUS ET logic output.
CONTROL
SYSTEM
NPN OUTPUT
X-PLUS ET
SERIES DRIVE
INPUT
+
V+
8 V
DC
< V+ < 24 V
DC
Fig. 10 – Driving a X-PLUS ET logic input from a control system with a NPN open collector output.
