Kollmorgen AKD Serie Manual De Instrucciones página 19

1.5.7.2 Use as directed
The STO function is exclusively intended to provide a functional safe stop of the motion sys-
tem. To achieve this functional safety, the wiring of the safety circuits must meet the safety
requirements of IEC 60204, ISO 12100 and ISO 13849.
1.5.7.3 Prohibited use
The STO function must not be used if the drive is to be made inactive for the following reas-
ons:
Cleaning, maintenance and repair operations, long inoperative periods. In such cases, the
entire system should be disconnected from the supply and secured (main switch).
Emergency-Off situations. In an Emergency-Off situation, the main contactor is switched
off (by the Emergency-Off button).
1.5.7.4 STO technical data AKD-x003 up to AKD-x024
Safety characteristic data
Device
STO
Pinout
Pin Signal Description
1 +24
2 GND
3 STO
Signal diagram (sequence)
The diagram below shows how to use STO function for a safe drive stop and fault free oper-
ation of the drive.
1. Brake the drive in a controlled manner (speed setpoint = 0 V).
2. When speed = 0 rpm, disable the drive (Enable = 0 V).
3. Activate the STO function (STO = 0 V)
ISO 13849-1 IEC 62061
PL d, CAT 3 SIL 2
+24 VDC Auxiliary voltage
24V Supply GND
STO enable (Safe Torque Off)
Kollmorgen | kdn.kollmorgen.com | October 2018
AKD Product Safety Guide | 1 English
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