Table 107: Configuration in the OPTBM: Used Safety Functions: SS1
Group 7 for safe digital output 2
Process
control
(not safety-re-
lated
system)
SS1
X4-11 (DIN1A)
X4-12 (DIN1B)
X5-1
X3-9 (+24V)
X3-7 (OUT2A)
X3-8 (OUT2B)
Advanced safety
option board
X5-8
Encoder input
connections
X3-1 (STO 1)
X3-2 (STO 2)
STO
option board
OPTAF
STO
X3-3 (GND)
X3-4 (GND)
Frequency reference
Basic I/O
(OPTAx, OPTBx)
e30bi381.10
Illustration 79: The SS1 Function with a Controlled Ramp Down from a Process Control System
N O T I C E
If the execution of the ramp is safety critical, use safe speed measurement. This can be done, for example, by using an adequate
speed measurement combination on the Advanced safety option board.
N O T I C E
If the execution of the ramp is not safety critical, it can be possible to use only one channel to indicate the SS1 Active to the
external system.
13.5 Light Curtain Control of SLS
This configuration uses the SQS-SS1 function for a controlled stop of the motor and the SLS function to monitor the speed of the
motor with the Advanced safety option board OPTBN. The SQS function is also used as a violation response of the SLS function. The
SLS function is controlled by a light curtain. No external safe reset or acknowledgment is required. The SLS acknowledgment mode
AQ319736045637en-000101 / DPD01798 | 177Danfoss A/S © 2021.06
Configuration Examples
VACON® NXP Advanced Safety Options
Operating Guide
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