NORD Drivesystems BU0270 - Manual (Page 46)

Supplementary Manual EtherCAT for NORDAC SK 200E
46 Subject to technical amendments BU 0270 GB
Relevant
bus system
Serial
No.
Step Comments
Field bus
(EtherCAT)
6 Configure bus
module for field
bus EtherCAT address assignment is carried out automatically.
Exception: Second Address Mode (see Section 2.2.3).
System bus
7 Monitoring at
system bus level • (P151): { 200 }
• (P120 [-01]) { 1 } or { 2 }
System bus
8 Checking system
bus
communication
• (P748): "System bus status"
• (P740 [-01]): "Control word"
• (P740 [-02]): "Setpoint 1"
• (P741 [-01]): "Status word"
• (P741 [-02]): "Actual value 1"
• (P173): "Module status"
Field bus
(EtherCAT)
9 Checking field bus
communication
• (P173): "Module status"
• (P176): "PZD Bus In"
• (P177): "PZD Bus Out"
Note: Settings specific to the application (motor data, control parameters, control terminal functions etc.)
cannot of course be described here.
5.4.2 Example for switching the frequency inverter on and off
In this example, a FI will be operated with a setpoint (setpoint frequency) and an actual value (actual
frequency). The "Maximum Frequency" is 50Hz.
Parameter settings:
• P105 = 50
• P543 = 1
• P546 = 1
Control
word Setpoint 1 Status
word
Actual
value 1
Explanation
- - - - - - 0000
hex
0000
hex
- - - - - - xx40
hex
0000
hex
The mains voltage is switched on at the FI
047E
hex
0000
hex
xx31
hex
0000
hex
FI is set to "Standby" status
047F
hex 2000
hex
xx37
hex
2000
hex
FI is set to "Operation enabled" status and controlled with a
50% setpoint.
The FI is enabled, the motor is supplied with current and rotates with a frequency of 25Hz.
047E
hex
2000
hex
xx31
hex
0000
hex
FI is set to "Standby" status, the motor runs up its
parameterised ramp to speed 0 and is switched off.
The FI is disabled again and the motor is without current.
047F
hex
1000
hex
xx37
hex
1000
hex
FI is set to "Operation enabled" status and controlled with a
25% setpoint.
The FI is enabled, the motor is supplied with current and rotates with a frequency of 12.5Hz.
5.5 Timeout monitoring
Data traffic on the EtherCAT side is monitored by EtherCAT watchdogs. In addition,monitoring via the
parameter P151 of the bus module and via the relevant parameter settings in the frequency inverter is also
possible. Further details are described in Section 7.