Vacon OPTAF, User Manual

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STO AND SS1 SAFETY FUNCTIONS vacon • 31
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3.5.3 Parametrizing the drive for the Safe Torque Off (STO) safety func-
tions
There are no parameters for the STO function itself.
In applications, there is a possibility to change the warning A30 "SafeTorqueOff" to a fault. For e-
xample in VACON
®
NXP Multi Purpose application through parameters  protections  SafeDis-
able mode, the STO state may be changed to generate a fault. As default, it is always set to generate
a warning.
NOTE! When STO state is changed to indicate a fault, the drive will display the fault "F30
SafeTorqueOff" even after the switch S1 have been released (contacts closed) and the hardware is
enabled. The fault must be acknowledged.
3
Switch S1
- Has the switch S1 been chosen according to the required safety
performance target (SIL or PL) set during the risk evaluation?
- Is the switch S1 required to be lockable or otherwise secured in
the isolating position?
- Is it ensured that color coding and marking is in accordance with
the intended use?
- Is the external power supply earth fault and short circuit protected
(EN 60204-1)?
4
Is the reset function edge sensitive?
If a reset function is used with Safe Torque Off (STO) or Safe Stop 1 (SS1) it
must be edge sensitive.
5
The shaft of a permanent magnet motor might in an IGBT fault situation
rotate up to 360 degrees / pole of the motor. Has it been ensured that the
system designed in such a way that the this can be accepted?
6
Have process requirements (including deceleration time) been consid-
ered for correct execution of Safe Stop 1 (SS1) safety function and are the
corresponding settings done according to Chapter 3.5.4?
7
Is the enclosure class or the cabinet class of the drive where the OPTAF
board is installed either:
a) at least IP54?
b) coated PCBs are used in the drive?
8
Have the User's Manual instructions for the specific product, on EMC
compliant cabling been followed?
9
Has the system been designed in such a way that activating (enabling) the
drive through STO inputs will not lead to an unexpected start of the drive?
10
Have only approved units and parts been used?
11
Is the VACON
®
NXP control board VB00761 revision B or newer? (See the
sticker on the VACON
®
NXP control board).
12
Is the VACON
®
NXP system software version NXP00002V179, or newer?
13
Has a routine been set up to ensure that the functionality of the safety
function is being checked at regular intervals?
14
Has this manual been read, understood and followed carefully?
Table 7. Checklist for commissioning the STO or SS1 safety functions.
Nr Step No Yes