6.9.3 Use as directed
The safety function STO is exclusively intended to provide functional safety, by prevent
-
ing the restart of a system. To achieve this functional safety, the wiring of the safety cir
-
cuits must meet the safety requirements of IEC 60204, ISO 12100, IEC 62061 SIL CL2
respectively ISO 13849-1 PLd.
If STO is automatically activated by a control system, then make sure that the output of
the control is monitored for possible malfunction.
6.9.4 Prohibited Use
The STO function must not be used if the drive is to be made inactive for the following
reasons:
— Cleaning, maintenance and repair operations, long inoperative periods:
In such cases, the entire system should be disconnected from the supply by the
personnel, and secured (main switch).
— Emergency-Off situations: the mains contactor must be switched off (by the
emergency-Off button).
6.9.5 Technical data and pinning
Input voltage
20 V..30 V
Input current
33 mA – 40 mA (Ieff)
Peak current
100 mA (Is)
Response time (falling edge at STO input un-
til energy supply to motor is interrupted)
1ms
6.9.6 Enclosure
Since the servo amplifier meets enclosure IP20, you must select the environment ensur-
ing a safe operation of the servo amplifier. The enclosure must meet IP54 at least.
6.9.7 Wiring
When using STO wiring leads outside the control cabinet, the cables must be laid durably
(firmly), protected from outside damage (e.g. laying in a cable duct), in different sheathed
cables or protected individually by grounding connection.
Wiring remaining within the demanded enclosure must meet the requirements of the stan-
dard IEC 60204-1.
S300 Instructions Manual 39
Kollmorgen 02/2017 Technical description
STO-ENABLE
DGND
DGND 4
5
3
X4 24V / STO
+24V
+24V 1
2
interlock
safety
switchgear
To Next Page
Loading...
Need help?
General
