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3.8.20 ECAT LED signals (CAT drives)
LED connection
LED current
3.3 output voltage
3.3 output current
3.8.21 Safe Torque OFF (STO1+; STO1-; STO2+; STO2-)
Safety function
EN 61800-5-1/ -2 and EN 61508-5-3/ -4
Classification
EN13849-1 Classification
Mode compliance
Default state
Input voltage
Input current
Repetitive test pulses
(high-low-high)
Fault reaction time
PWM operation delay
ESD protection
† Stresses beyond values listed under "absolute maximum ratings" may cause permanent damage to the device. Exposure to absolute-maximum-rated
conditions for extended periods may affect device reliability.
Technosoft 2019
According to EN61800-5-2
Safety Integrity Level
PFHd (Probability of Failures per Hour - dangerous)
Performance Level
MTTFd (meantime to dangerous failure)
Input floating (wiring disconnected)
Logic "LOW" (PWM operation disabled)
Logic "HIGH" (PWM operation enabled)
Absolute maximum, continuous
Logic "LOW"; pulled to GND
Logic "HIGH", pulled to +Vlog
Ignored high-low-high
From internal fault detection to register DER bit 14 =1 and
OUT2/Error high-to-low
From external STO low-high transition to PWM operation
enabled
Human body model
49
Min.
Typ.
Max.
Common anode to 3.3V output
Direct, no series resistor
8
10
3.15
3.3
3.45
60
Min.
Typ.
Max
STO (Safe Torque OFF)
safety integrity level 3 (SIL3)
-10
-1
8*10
hour
(0.8 FIT)
Cat3/PLe
377
years
PNP
Logic LOW
-20
5.6
18
36
-20
+40
0
5
13
5
20
30
30
±2
iMOTIONCUBE Technical Reference
Units
mA
V
mA
Units
V
mA
ms
Hz
ms
ms
kV
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