9300 Servo PLC
Appendix
4-3
9300ServoPLC EN 1.4
4.3 Monitoring
System interfaces
• System bus (CANopen)
• Field buses
• Digital frequency,
analog and digital I/O
CAN
Microcontroller
Digital
Signal
Processor
(FLASH, EEPROM, RAM)
• PLC application program
to IEC 1131-3
(can be changed)
Technology functions
• Operating system
• Communication
• Drive control
(cannot be changed)
• Motor control
Rectifier
Inverter
Asynchronous motor
with resolver / encoder
Standard motor
Synchronous motor
SIN/COS encoder
Memory
The Servo PLC 9300 includes two independent parts:
• Motor control and
• PLC.
Tip!
In general, faults do not affect the serviceability of the PLC!
Different monitoring functions of the motor control protect the drive from unpermissible operating
conditions.
After the monitoring function has been triggered
• the corresponding set reaction is released (see chapter 4.3.1).
• a digital output of a system block is set.
In the event of undervoltage at the PLC, for instance, the output
MCTRL_bUndervoltage_b
of
the system block MCTRL_MotorControl (internal motor control) is set to TRUE (see
(
^
2-57)).
• the error code is entered in the history buffer.
• the current error number is displayed under DCTRL_wFaultNumber.
If a reaction on a motor control error is required, the error can be requested (see description of the
individualsystem blocks).ThesystemblockDCTRL_DriveControldisplaysthat anerrorhasoccured
and shows the current error code.
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