MSG11-5715-743/EN: AC20F Series - Hardware Installation Manual
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MSG11-5715-743/EN 24.04.2023
Configuration Setup:
TH1
Motor Thermistor ‘+’ connection
TH2
Motor
Thermistor ‘-’ connection
DX1
Run Forward:
24 V digital input
STOA
24 V input connected i.e., STO
DISABLED
(drive operational)
STOB
24 V input connected i.e., STO
DISABLED
(drive operational)
Minimum STO Implementation:
This example shows ‘STO Request’ contacts that are used to invoke STO on the drive. These contacts are
required to close prior to running the drive:
Configuration Setup:
TH1
Motor Thermistor ‘+’ connection
TH2
Motor Thermistor ‘-’ connection
DX1
Run Forward:
24 V digital input
STOA
24
V input connected via ‘
STO Request
’ contacts
STOB
24
V input connected via ‘
STO Request
’ contacts
To run the drive:
1.
Close the ‘STO Request’ contacts.
2.
Close the ‘Run Forward’ contact.
To stop the drive:
1. Open the
‘Run Forward’ contact and wait for the motor to come to a standstill.
To invoke STO:
1.
When the motor is at standstill, open the ‘STO Request’ contacts.
2.
STO will now be ‘Active’ on the drive, for as long as required.
Note: Opening the ‘STO Request’ contacts when the motor is running will result in the motor
coasting to a stop.
STO Request
