2/9
R.T.A. s.r.l. - Via E. Mattei – Fraz. Divisa 27020 Marcignago (PV) – Tel. +39.0382.929.855 - Fax +39.0382.929.150 – http://www.rta.it
© R.T.A. s.r.l. ANDCME04 – 09/21
8(-) ; 9(+) DRIVER FAULT OUTPUT:
When this output is SHORTED, drive is normally working; when it is OPEN drive
is in no-working state. Drive automatically goes in no-working state when some protection is active and
automatically recovers when the protection resets.
1 ; 10
INTERNAL GND:
(internally interconnected and connected to terminals 12, 13 and 18). Galvanically
insulated from logic inputs and outputs and connected to power supply common. They can be used to
connect the shield of logic signal cable (if that is mandatory or useful depending on type of control system).
STEP, DIRECTION and CURRENT-OFF
simplified input structure
DRIVE
GND
In+
Step Dir Coff
R1
R2
In+
680 680
1000 1000
5
7
4
3
2
6
R1 and R2 in Ohm
3.5
Vin
13 Volt
<
<
390
1200
DRIVE
Out +
9
FAULT output structure
NOTE:
Insert a protection diode in parallel with the load
in case of inductive load.
Vmax = 45 Volt
Imax = 50 mA
Vsat 0.8 Volt
Out -
8
Fig. 1 a
Fig. 1 b
Fig. 1 c: Simplified Input Scheme for A-NDC 96.S
CONNECTION EXAMPLES
NPN OUTPUT
CONTROL SYSTEM
GND
OUTPUT
VU
INPUT
+
-
PNP OUTPUT
CONTROL SYSTEM
GND
OUTPUT
VU
INPUT
+
-
Fig. 2
Connection example with control system with NPN
output.
Fig. 3
Connection example with control system with PNP
output.
