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5-12
User Manual CM-CAN1
5 Control and reference input
5.5.4 System
Start/Stop
Function: System Start/ Stop
Data direction: Master -> All
Type: Broadcast
STOP
• The drive unit switches to System Stop
• The drive unit stops the drive
• Reference values are then only received and stored (1 reference)
• Status messages are transmitted
• Parameter access possible
START
• Time monitoring enabled (watchdog functions)
• Control functions are processed
• Status messages are transmitted
• Error messages can be sent over the bus
• Parameter access possible
5.5.5 Control
functions
Function: Control functions/reference
Data direction: Master -> Drive unit
Type: Selective
Control functions can be optimally adapted to the relevant application.
Consequently, several control formats are offered. The appropriate
formats can be selected by the master during the setup phase over the
bus, or by adjusting the relevant device parameters.
The state machine of the drive units has a sampling time of 1 ms. All con-
trol commands and reference values are processed during this sampling
time by the drive unit.
Priority based
on CAL
ID Data byte 0
1 221
00 = STOP
01 = START