HEIDENHAIN TNC 430 PA - Enabling the Drive Controller

December 2001 The Control Loop 6 – 143
Enabling the drive
controller
TNC 426 PB/TNC 430 PA
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7 To enable the drive, assign 24 Vdc to connection X50 terminal 1.
If the ready signal is missing, or if there is no voltage on connection X50, the
drive controller cannot be switched on.
If you disconnect the voltage for connection X50, all drive controllers are
switched off. The drive controllers can be switched on with Module 9161 as
soon as voltage is applied to X50. You can use, for example, the axis release
W1024 as a criterion for drive enabling.
To enable the PLC to detect the disconnection of voltage to X50:
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7 Also apply the drive-releasing signal to a PLC input (see Basic Circuit
Diagram at end of Chapter 3).
To avoid contact problems, do not use the same relay contact as for drive
enabling (X50/1).
When the drive controller is switched off, the axis is brought to a standstill.
Then the speed controller and current controller are opened. Then the power
supply unit is switched off with the reset signal.
You can request the status of the drive controller with Module 9162, and you
can determine if the drive controller is ready to be switched on with Module
9157.
TNC 426 M/TNC 430 M
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7 To enable the drive, assign 24 Vdc to connection X42 pin 33 (I32).
If the ready signal is missing, or if there is no voltage on connection X42/33,
the drive controller cannot be switched on.
If you disconnect the voltage for connection X42/33, all drive controllers are
switched off. The drive controllers can be switched on with Module 9161, as
soon as voltage is applied to X42/33. You can use, for example, the axis
release W1024 as a criterion for drive enabling.
You can define axes for which the drives will not switch off if drive enabling
(X42/33) is missing:
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7 With Module 9169 transfer in bit code the axes that are not to be switched
off.
You can determine by PLC which axes are switched off in 200 ms:
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7 Call Module 9159. The drives that are switched off are returned in bit code.
You can request the status of the drive controller with Module 9162, and you
can determine if the drive controller is ready to be switched on with
Module 9157.
Note
If drive enabling through X50 or X42/33 is missing, the error message
8B40 No drive release <axis> appears.