User manual ADV200-…-SI with External Safety Modules
Page 12 of 13
5.3 SDI Function
The Safe Direction (SDI) function controls motor rotation direction: a properly wired and configured safety
module checks that the motor turns in one direction only. Upon detecting that the motor rotates in the
reverse direction, the safety module triggers an alarm. Configuration and detection methods related to the
condition of reverse rotation are described in the safety module manual.
Upon detecting that the motor rotates in the reverse direction, the safety module activates the ADV200
integrated STO function.
In order to comply with the functional specifications, the safety module response times should be added to
those of the STO function, as described in the Safety manual (code 1S5F94, EN) and shown in Figure 6 and
Table 2 above.
5.4 SS1 Function
The Safe Stop 1 (SS1) function brakes the motor along a quick-stop ramp then activates the ADV200 STO
function. The safety module SS1 function is configured in the best and most responsive way to meet the
requirements of the system it controls.
The SS1 function is generally designed to ensure that, after a certain time (Tdelay) following a request to
activate the SS1 function, the ADV200 integrated STO function is activated.
The safety function
does not guarantee compliance with the descent ramp
but rather the activation of the
STO function below a certain speed or after a certain period of time (Tdelay), as shown in the following
figure.
Speed
Time
Tdelay
TRamp
Motor
Torque Off
Ramp Down
Starts
Figure 7.
SS1 safety function timeline diagram
Upon detecting the end of the set delay time, the safety module activates the ADV200 integrated STO
function.
In order to comply with the functional specifications, the safety module response times should be added to
those of the STO function, as described in the Safety manual (code 1S5F94, EN) and shown in Figure 6 and
Table 2 above.
