Fagor DDS Series Hardware Manual page 314

   Functional safety
9.2 Drive Enable input and AS1-AS2 feedback output
The interface for the integrated channel (Drive Enable) of the STO safety function consists of the DRIVE
ENABLE input and its associated contact of the AS1-AS2 feedback.
9.
328
DDS
HARDWARE
Ref.1912
F. H9/1
STO ·Drive Enable· integrated channel interface.
· 314 ·
X3
X4
X5 X6
NODE
STATUS
DISPLAY
OUT
IN
X1
SL1
SL2
AS1
X7
AS2
GND
DRIVE
ENABLE
SPEED
ENABLE
DR.
X2
O.K.
0 V
+24Vdc
FUSE
(250V)
2.5A(F)
DANGER
HIGH VOLTAGE
DISCHARGE TIME>4Min
AS1
X7
AS2
GND
S AFE T ORQUE O FF
DRIVE
ENABLE
Drive Enable input
SPEED
ENABLE
DR. X2
O.K.
0 V
+24Vdc
Aerial male connectors X2 and X7. Mechanical data.
Connector data
Nr of poles (X2/X7)
Gap (mm)
Min./max. tightening torque (N·m)
Screw thread
Min./max. section (mm²)
Female connector X2. Electrical data.
8-pin connector whose 3 pins to consider are:
0 V DC reference for
1 GND
Drive Enable and Speed Enable
24 V DC.
Drive current enable
DRIVE
0 V DC.
2
ENABLE
STO ( S afe T orque O ff, integrated channel
input)
24 V DC ±10 %, I< 50 mA.
24 V DC. Drive speed enable.
SPEED
3
Out of certification.
ENABLE
See sub-section: X2 connector in chapter 3 of this manual.
Female connector X7. Electrical data.
2-pin (AS1-AS2) connector associated with the (N.C.,
N ormally C losed) contact of an internal safety relay with
guided pins of free potential. The state of the Drive Enable
input is open high "H".
Dielectric strength: 1800 Vrms
Contact data:
Current Imax = 1 A
Voltage = 24 V DC
See sub-section: X7 connector in chapter 3 of this manual.
Drive Enable electrical protections
MANDATORY.
 Install a 1 A slow fuse - F of 1 A to limit the current
at the Drive Enable input.
See fuse - F in figures
 Use a SELV/PELV power supply for the Drive
Enable and AS1-AS2 circuits.
8/2
5
0.5/0.6
M3
0.2/2.5
F. H9/2 and F. H9/3 .