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Commissioning
5.1
Wiring of drive ready signals
In order to use the S7 function block FB 401 (MC_POWER) to switch on a drive connected to the
ADI4, the drive must signal its readiness. For this purpose, the ready signal of the drive must be
wired with one of the ready signal inputs "Drive Ready" Axis x (DRVx_RDY), Interface (X6-2) of
the ADI4.
The ready signal must continue to exist at the ADI4 input even after the drive is switched on. If
the signal is cleared, the drive will stop.
Note
Drives without ready signal
If a ready signal is not available for a drive, the corresponding digital ready signal input "Drive
Ready" Axis x (DRVx_RDY) of the ADI4 can be assigned statically with 24 V. The disadvantage of
this is that the S7 function block FB 401 (MC_POWER) can no longer detect a drive failure. FB 401
returns the status "TRUE" at its output even after a drive failure.
Figure 5-1
5.2
Absolute encoder (SSI), single-turn
General
The parameter assignment of a single-turn absolute encoder (SSI) illustrated in the following
example is performed using the "External encoder" technology object.
SIMOTION ADI4 - Analog Drive Interface for 4 Axes
Equipment Manual, 07/2017, A5E33446849B
Drive enable for Axis 1 (principle)
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