Sequence Of Events For Handshake With "Set Of Set Values - Baumuller b maXX BM3000 Operating Manual

4.8
Operating Modes

4.8.2.6 Sequence of Events for Handshake with "Set of Set Values"

For "Set of Set Values", Control Word Bits 4 (New Set Value) and 5 (Change Set Imme-
diately) are used.
The interpretation of the two bits is compatible with devices in the b maXX 4400 series, if
Z118.2–
"Set of Set Values" conforming to IEC61800-7-201 is activated by
Bit 11 = 1. Control Word Bit 5 has inverted logic here compared to the b maxx 4400 inter-
pretation, and must therefore be cleared for "Set of Set Values" positioning.
The handshake according to the b maxx 4400 interpretation is described in the following
diagrams.
Figure 181:
1
2
3
4
5
554 Parameter manual b maXX BM3000
Document no.: 5.12001.07
of 820
Mode Bit 11 = 0.
Handshake for "Set of set values"
The controller has transmitted the positioning data to the drive. The data only take ef-
fect on an edge of the "New Set Value" bit.
The controller sets the "New Set Value" bit in the control word. The rising edge is the
request to start positioning. Since the "Set Value Specification" mode is to be used,
the "Change Set Immediately " bit (Bit 5 of the control word) must be set on the edge.
The drive signals that it has detected the start request by setting the set value hand-
shake. The set values have been accepted and the positioning procedure started.
The "Target Position Reached" message is canceled; likewise the Positioning Status
Z118.1–
parameter indicates by clearing the "Function Ended" bit that the ramp gen-
erator is issuing new values.
The controller cancels "New Set Value".
In response to the cleared "New Set Value" bit, the drive also clears the "Set Value
Handshake" bit in the status word.
Z118.2–
Mode
Baumüller Nürnberg GmbH