1.5.7.4 STO-SBC status register
The Safety Statusword indicates the current state of safety functions and Safety Digital Input Diagnostics
shows the state of the Safety Module inputs.
Index Name Descriptions
0x6621 Safety Statusword Subindex:
1 - Bit 1: STO status is the first bit of byte
2 - Bit 2: SBC status is the first bit of byte
STO/SBC status:
0: is not active
1: is active
0x2611 Safety Digital Input Subindex:
1 - Input 1:
2 - Input 2:
Input 1/2:
0: Input is low
1: Input is high
Important
Important
Using the SBC function while running the motor may damage the brake due to mechanical stress.
Using the SBC function while running the motor may damage the brake due to mechanical stress.
During normal operation it is recommended to activate STO-SBC after the motor has come to a halt
During normal operation it is recommended to activate STO-SBC after the motor has come to a halt
e.g. by introducing a delay with an external safety logic device such as a safety timer. This way an
e.g. by introducing a delay with an external safety logic device such as a safety timer. This way an
equivalent of SS1 with time monitoring is implemented.
equivalent of SS1 with time monitoring is implemented.
Attention
Attention
The STO-function does not provide electrical isolation from the mains supply. If electrical changes
The STO-function does not provide electrical isolation from the mains supply. If electrical changes
need to be carried out on the system (e.g. modifying the motor cabling), the servo drive shall be
need to be carried out on the system (e.g. modifying the motor cabling), the servo drive shall be
completely isolated from mains supply with a mechanical switch.
completely isolated from mains supply with a mechanical switch.
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