3
Safety concept
General information
Manual – MOVISAFE
®
CS..A Safety Card
15
3
Safety concept
3.1
General information
The MOVISAFE
®
CS..A safety card is a safe assembly with safe digital inputs and out-
puts and, depending on the parameterization, safe communication.
MOVISAFE
®
CS..A is fully integrated in the MOVIDRIVE
®
modular inverter or the
MOVIDRIVE
®
system inverter. This means that MOVISAFE
®
CS..A internally activates
the STO drive safety function of the inverter. The output stage of the inverter is safely
switched off by the STO function.
The safety concept is based on a safe state existing for all safe process values. A safe
state of the MOVISAFE
®
CS..A safety card is defined as follows:
•
The internal output F-DO_STO is activated as N.C. As a result, the drive safety
function STO is switched and the output stage of the inverter is switched off.
•
All other existing safe digital outputs are activated as N.C.
•
With parameterized safe communication, either substitute values are sent for the
data (i.e. all data is "0"), or the communication is interrupted.
3.2
Notes on stop categories
•
With stop category 0, the output stage of the inverter is switched off, irrespective of
the setpoints set.
•
With stop category 1, the MOVISAFE
®
CS..A safety card monitors the stopping of
the drive and subsequently interrupts the supply of power to the motor:
– With SS1(c), the output stage of the inverter is switched off after the parameter-
ized delay time.
– With SS1(b), the stopping of the drive is monitored. At a standstill, the output
stage of the inverter is switched off.
•
With stop category 2, the MOVISAFE
®
CS..A safety card monitors the stopping of
the drive and subsequently monitors the safe operating stop:
– With SS2(c), the safe operating stop is monitored after the parameterized delay
time.
– With SS2(b), the stopping of the drive and the subsequent safe operating stop
are monitored.
3.3
Pluggable safety key
The safety key must be inserted upon activation of the MOVISAFE
®
CS..A safety card
and may not be removed when the safety card is activated.
The parameterization data of the MOVISAFE
®
CS..A safety card is divided into applica-
tion-related data and a key data set. The key data set ensures the data integrity.
The application-related data is stored in the device. The application-related data is re-
leased with the aid of the key data set on the pluggable safety key. The safety card
becomes operational only if the key data set on the pluggable safety key matches the
parameterization.
24842532/EN – 04/2018
