Danfoss VLT FC 280 Operating Manual page 82

VLT® Midi Drive FC 280
Operating Guide
6.7.1.4 Retrieving Safety Option Status
A subset of the safety option status can be retrieved as part of the status word. Its behavior changes based on the selected control
word profile.
Configure the following 2 options in parameter 8-13 Configurable Status Word STW:
• Configure [91] Safe Opt. Reset. req to indicate that a reset of the safety option is required.
• Configure [90] Safe Function active to indicate that a safe function is active.
Parameter 42-80 Safe Option Status indicates the actual status (active safe function, any requests, and error number) of the safety
option and is accessible as read only parameter from any interface or configurable as read process data for a specific fieldbus.
Parameter 42-80 Safe Option Status only shows the active safety function.
6.7.1.4.1 Status Bits for Safety Option Status
Table 38: Status Bits for Safety Option Status
Bit Description
00 Normal_up
01 PUST
02 STO active
03 SS1-t active
04–07 Reserved
08 Safe output status
09 Safe option initialized
10 Safe fieldbus acknowl-
edge request
11 Int_failure
12 Reset required
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N O T I C E
State
Bit 00, safety function deactive/active.
Bit 00=0, safety function, fail safe reaction is active, or pending, or warning is active.
Bit 00=1, normal operation.
Bit 01, power up self test.
Bit 01=0, safety option is not in PUST state.
Bit 01=1, safety option is in PUST state.
Bit 02, Safe Torque Off.
Bit 02=0, Safe Torque Off is not active.
Bit 02=1, Safe Torque Off is active.
Bit 03, Safe Stop 1.
Bit 03=0, Safe Stop 1 is not active.
Bit 03=1, Safe Stop 1 is active.
–
Bit 08, safe output status.
Bit 08=0, safe output at 24 V.
Bit 08=1, safe output at 0 V.
Bit 09, safe option initialized.
Bit 09=0, not in safe option initialized state.
Bit 09=1, in safe option initialized state.
Bit 10, safe fieldbus acknowledge request.
Bit 10=0, no operator acknowledgement requested.
Bit 10=1, operator acknowledgement from safe PLC requested.
Bit 11, internal failure.
Bit 11=0, no internal failure is active.
Bit 11=1, an internal failure is active.
Bit 12, reset.
Bit 12=0, no safety option reset is required.
Safety Functions
AQ381425076031en-000101 / 130R1223