TM077427
Earth, mains and motor connection for D5h
TM077428
Earth, mains and motor connection for D7h
6.6 STO installation, optional
DANGER
Exposure to high pressure or toxic liquids
Death or serious personal injury
‐
Failure to remove the jumper disables the STO
function, and the motor might not stop as
intended, and can cause severe injury or death.
‐
Failure to use safety-monitoring relay compliant with
Category 3/PL d according to ISO 13849-1 or SIL
2 according to EN 62061 and IEC 61508 can cause
death or serious personal injury. Perform a functional
test every 12 months to ensure that the system works
properly.
To enable the integrated STO, follow these steps:
1. Remove the jumper wire between control terminals 37 and 12 or
13. Cutting or breaking the jumper is not sufficient to avoid
short-circuiting.
12/13
37
TM074595
1. Connect an external safety-monitoring relay via a NO safety
function to terminal 37 (STO) and either terminal 12 or 13, 24 V
DC.
Select and apply the components in the safety control system
appropriately to achieve the desired level of operational safety.
Before integrating and using STO in an installation, carry out a
thorough risk analysis on the installation to determine whether the
STO functionality and safety levels are appropriate and sufficient.
12
37
1
3
FC
4
2
TM074594
STO wiring
Pos.
Description
1
Reset button
2
Safety relay (category 3, PL d or SIL2)
3
Emergency stop button
4
Short-circuit protected cable if the product is not
installed inside an IP54 cabinet.
6.6.1 Restart behaviour after STO activation
By default, the STO function is set to unintended-restart prevention
behaviour. To terminate STO and resume normal operation
with a manual reset, do the following:
•
Reapply 24 V DC supply to terminal 37.
•
Send a reset signal via bus, Digital I/O or the reset button.
•
Set the STO function to automatic restart by changing the value
of 5-19 terminal 37
Safe Stop
from default value 1,
Safe Stop
Alarm
to value 3,
Safe Stop Warning
.
Automatic restart means that STO is terminated and normal
operation is resumed, as soon as the 24 V DC is applied to terminal
37. No reset signal is required.
Related information
6.7 Connecting the signal terminals
16
English (GB)