Setting functions
8.9 Safe Torque Off (STO) safety function
Converter with control units CU250D-2
242 Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
4. Selecting "STO via terminal":
You have completed the following commissioning steps:
● You have started to commission the safety functions.
● You have selected the basic functions with control via onboard terminals of the inverter.
Table 8- 32 Parameter
p9601
Enable functions integrated in the drive (factory setting: 0000 bin)
Safety functions integrated in the drive inhibited
p9601 = 1 Enable basic functions via onboard terminals
The other selection options are described in the "Safety Integrated Function Manual". See
also Section: Manuals for your inverter (Page 371).
Interconnecting the "STO active" signal
If you require the feedback signal "STO active" of the inverter in your higher-level control
system, then you must appropriately interconnect the signal.
To interconnect the "STO active" checkback signal, proceed as follows:
1. Select the button for the feedback signal.
2. In the following selection menu, select the appropriate setting for your particular
application.
You have interconnected the "STO active" checkback signal. The inverter signals "STO
active" to the higher-level control after STO has been selected.
1 signal: STO is active in the drive
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