Danfoss VLT FC 280 Operating Manual page 97

VLT® Midi Drive FC 280
Operating Guide
STO reaction time
9
1 FIT=1/(10 hour).
1
For proof test procedure, refer to chapter Operation and Maintenance.
2
STO reaction time via fieldbus is the amount of time from an STO command received until the torque is removed from the motor interface.
3
6.12 Safety-related Parameters
Table 47: Safety Related Parameters
Parameter Option/range
Parameter 42-20
[0] STO
Safe Function
[5] Disable
[9] SS1-t
Parameter 42-24
[0] Manual
Restart Behavior
[1] Automatic
Parameter 42-30
[0] STO
External Failure
[3] SS1-t
Reaction
Parameter 42-31
[0] Drive Reset
Reset Source
[1] Drive Safe Re-
set
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Hardware fault tolerance (HFT)
Proof test interval (PTI)
(2)
Common cause failure (CCF)
Diagnostic test interval (DTI)
Systematic capability
Drive worst case delay time (WCDT)
Bus delay time (BT)
Input to output response time
Default Usage
[5] Disable Select the safety function when the safe input is ac-
tive.
[0] Manual Select whether the safety option restarts automati-
cally or waits for a manual reset after the safety func-
tion was activated via a digital input.
[0] STO Select which safety function is executed if there is an
external failure.
[0] Drive
Select the source that triggers the safety option re-
Reset
set.
The reset sources of [0] Drive Reset are:
•
•
•
If there is an active alarm on the drive, the 1st the
drive, and the 2nd safety option.
(3)
The [Reset] key on the LCP.
Digital input.
Reset signal via a fieldbus.
Safety Functions
For single-channel parts: >99%
For dual-channel parts: HFT=1
For single-channel parts: HFT=0
20 years
β=5%; β =2%
D
<10 minutes
SC 3
≤70 ms
≤4 ms
≤120 ms
Con-
ver-
sion
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Data
type
u_int8
u_int8
u_int8
u_int8