Danfoss VACON OPTEA User Manual

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Table 31: The STO and SBC Signals
Signal
Activation and deactivation of the signal
Description
STO Ac-
tive
Activation:
STO safety function is requested externally or from another safety function. OR
Fault detected in the Advanced safety option board
Deactivation (manual acknowledgment):
Acknowledgment signal received
Deactivation (automatic acknowledgment):
STO request ends
Deactivation (fault situation):
Reset signal is given after a fault situation is cleared and reset conditions are valid
The signal indi-
cates if STO func-
tion is being exe-
cuted.
STO
Reached
This signal corresponds to the state of STO output on the Advanced safety option board. The
actual state of the output is reversed compared to the STO Reached signal. If STO Reached is
active, the STO output is inactive.
Activation:
Immediately with STO Active (SBC Order = STO first or SBC is not used, or fault situation) OR
After SBC t1 (SBC Order = SBC first)
Deactivation (manual acknowledgment):
Acknowledgment signal received when STO request has ended.
Deactivation (automatic acknowledgment):
STO request is deactivated.
Deactivation (fault situation)
Reset signal is given after a fault situation is cleared and reset conditions are valid.
The signal indi-
cates if the STO
output is activa-
ted.
SBC
Reached
Signal corresponds to the state of SBC output on the Advanced safety option board. The actual
state of the output is reversed compared to the SBC Reached signal. If SBC Reached is active, the
SBC output is inactive.
Activation:
Immediately with STO_Active (SBC Order = SBC first) OR
After SBC t1 (SBC Order = STO first)
Deactivation (manual acknowledgment):
acknowledgment signal received when STO request has ended
Deactivation (automatic acknowledgment):
STO request is deactivated.
Deactivation (fault situation):
Reset signal is given after a fault situation is cleared and reset conditions valid
The signal indi-
cates if the SBC
output is activa-
ted.
STO & SBC
reached
Activation:
When both SBC Reached and STO Reached are activated.
Deactivation:
When either SBC Reached or STO Reached is deactivated.
See STO and SBC signals above.
Combination of
STO and SBC
reached signals.
AQ319736045637en-000101 / DPD0179870 | Danfoss A/S © 2021.06
Safety Functions
VACON® NXP Advanced Safety Options
Operating Guide

Danfoss VACON OPTEA Specifications

General

Brand	Danfoss
Model	VACON OPTEA
Category	DC Drives
Language	English