Signals From Axis/Spindle (Digital Drives) - Siemens SINUMERIK 840D sl Function Manual

● Setpoint enable
● "Ready to run state"
– No drive alarm (DClink1 error)
– DC link connected
– Ramp-up completed
Feedback signal via: DB31, ... DBX93.7 (pulses enabled)
2.2.9

Signals from axis/spindle (digital drives)

DB31, ... DBX92.1 (ramp-function generator disable active)
The drive signals back to the PLC that ramp-function-generator fast stop is active. The drive
is thus brought to a standstill without the ramp function (with speed setpoint 0).
DB31, ... DBX93.0 - 4 (indicates active motor and drive data set)
The drive signals back the active motor and drive data set to the PLC.
The interface can be flexibly parameterized using: DB31, ... .DBX130.0 - 4 (see Chapter
"Switching over motor/drive data sets (Page 65)")
The request to switch over motor and/or drive data set is realized using: DB31, ... DBX21.0 -
4
DB31, ... DBX93.5 (DRIVE ready)
Checkback signal indicating that the drive is ready. The conditions required for traversing the
axis/spindle are fulfilled.
DB31, ... DBX93.6 (integrator n-controller disabled)
The speed-controller integrator is disabled. The speed controller has thus been switched from
PI to P controller.
DB31, ... DBX93.7 (pulses enabled)
The pulse enable for the drive module is available. The axis/spindle can now be traversed.
DB31, ... DBX94.0 (motor temperature prewarning)
The temperature of the motor is higher than the set motor temperature warning threshold (drive
parameter p0604).
See also note below for "DB31, ... DBX94.1 (heat sink temperature prewarning)".
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
A2: Various NC/PLC interface signals and functions
2.2 NC/PLC interface signals - only 840D sl
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