Baumuller b maXX BM5800 - Sequence of Events for Handshake with Set of Setpoints

Operating Modes
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
534
of 814
3.8
3.8.2.6 Sequence of Events for Handshake with “Set of Setpoints”
For "Set of Setpoints", Control Word bits 4 (New Set Value) and 5 (Change Set Immedi-
ately) are used.
The interpretation of the two bits is compatible with devices in the b maXX 4400 series, if
Z118.2– Mode bit 11 = 0.
"Set of Set Values" conforming to IEC61800-7-201 is activated by Z118.2– Mode
bit 11 = 1. Control Word bit 5 has inverted logic here compared to the b maXX 4400 in-
terpretation, 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 140: Handshake for "Set of Setpoints"
1 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.
2 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.
3 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 Status parameter
Z118.1– indicates by clearing the "Function Ended" bit that the ramp generator is is-
suing new values.
4 The controller cancels "New Set Value".
5 In response to the cleared "New Set Value" bit, the drive also clears the "Set Value
Handshake" bit in the status word.