YASKAWA SI-EP3

YASKAWA ELECTRIC TOBP C730600 89D YASKAWA AC Drive Option SI-EP3 Installation Manual 41
7 PROFINET Messaging
7 PROFINET Messaging
u PROFINET Overview
This section describes the communication profile used between the PROFINET I/O network
and the option.
The option supports the PROFIdrive profile. Users can select between the control and status
words according to the PROFIdrive profile or use the Yaskawa-specific control and status
words.
u PROFIdrive Communication Profile
n The Control Word and the Status Word
The contents of the Control Word and the Status Word are detailed in Table 9. and Table 10.
respectively. The drive states are presented in the PROFIdrive State Machine (Refer to the
option Technical Manual.).
n Frequency Reference
The Frequency reference is a 16-bit word containing a sign bit and a 15-bit integer. A
negative reference (indicating reverse direction of rotation) is formed by calculating the
two's complement from the corresponding positive reference. The reference value is the
desired output frequency.
n Output Frequency
Output Frequency is a 16-bit word containing the current output frequency (U1-02) of the
drive.
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