Appendix
A.8 Acceptance tests for the safety functions
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
383
Status
3. Select STO
3.1. Select STO while the motor is running.
Test each configured activation, e.g. via digital inputs and PROFIsafe.
3.2.
Check the following:
When controlled via
PROFIsafe
When controlled via fail-
safe digital inputs (F-DI)
When controlled via
terminals STO_A and
STO_B on Power Mod-
ule PM240-2
•
The inverter signals
the following:
"STO selection via
PROFIsafe"
(r9772.20 = 1)
•
The inverter signals
the following:
"STO Selection via
terminal"
(r9772.17 = 1)
•
The inverter signals
the following:
"STO Selection via
terminal on Power
Module"
(r9772.25 = 1)
•
If a mechanical brake is not available, the motor coasts down.
A mechanical brake brakes the motor and holds it to ensure that it remains
at standstill.
•
The inverter signals neither faults nor alarms of the safety functions
(r0945[0…7], r2122[0…7]).
•
The inverter signals the following:
"STO is selected" (r9773.0 = 1).
"STO is active" (r9773.1 = 1).
4. Deselect STO
4.1. Deselect STO.
4.2. Check the following:
•
STO is not active (r9773.1 = 0).
•
The inverter signals neither faults nor alarms of the safety functions
(r0945[0…7], r2122[0…7]).
You have performed the acceptance test of the STO function.
