Danfoss FC 300 Profibus User Manual

FC 300 Profibus
Troubleshooting
 Warning 34 Appears even though Communication is Established
If the PLC is in stop mode Warning 34 will appear. Check that the PLC is in run mode.
 Drive Will Not Respond to Control Signals
Check 1: Is the C on trol word valid?
If bit 10=0 in the Control word, then the drive will not accept the Control word, because the default setting
is bit 10=1. Set bit 10=1 via the PLC.
Check 2: Is the relationship between bits in the Control word and the terminal I/Os correct?
Check the logical relationship in the drive.
Set the logic to bit 3=1 AND digital input=1 in order to achieve a successful start.
Define the desired logical relationsh ip in par. 8-50 to 8-56 according to the following range of options. Select
the FC 300 control mode, digital input and/or serial communication, using par. 8-50 to 8-56.
The tables below show the effect upon the FC 300 of a coast command for the full range of par. 8-50 settings.
The effect of control mode upon the function of par. 8-50 Coasting select,8-51Quick stop select and 8-52
DC Brake select is as follows:
If Digital input [0] is selected, the terminals will
control the Coast and DC Brake functions.
NB!:
Please note that Coasting, Quick Stop and
DC brake functions are active for logic “0’’.
Digital input [0]
Term i nal Bit 02/03/04 Function
0 0 Coast/DC brake/Q-Stop
0 1 Coast/DC brake/Q-Stop
1 0 No Coast/DC brake/Q-Stop
1 1 No Coast/DC brake/Q-Stop
If Serial communication [1] is selected, com
mands
will be activated only w hen given via serial
communication.
Serial communication [1]
Term i nal Bit 02/03/04 Function
0 0 Coast/DC brake/Q-Stop
0 1 No Coast/DC brake/Q-Stop
1 0 Coast/DC brake/Q-Stop
1 1 No Coast/DC brake/Q-Stop
If Logic AND [2] is selected, both signals must be
activated to perform the function.
Logic AND [2]
Term i nal Bit 02/03/04 Function
0 0 Coast/DC brake/Q-Stop
0 1 No Coast/DC brake/Q-Stop
1 0 No Coast/DC brake/Q-Stop
1 1 No Coast/DC brake/Q-Stop
If Logic OR [3] is selected, activat
ion of one signal
will activate the function.
Logic OR [3 ]
Term i nal Bit 02/03/04 Function
0 0 Coast/DC brake/Q-Stop
0 1 Coast/DC brake/Q-Stop
1 0 Coast/DC brake/Q-Stop
1 1 No Coast/DC brake/Q-Stop
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MG.33.C2.02 - VLT is a registered Danfoss trademark

Danfoss FC 300 Profibus Specifications

General

Brand	Danfoss
Model	FC 300 Profibus
Category	DC Drives
Language	English