Danfoss VLT AutomationDrive FC 360, Programming Manual

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8 Troubleshooting
8.1 No Response to Control Signals
Check 1: Is the control word valid?
If bit 10 = 0 in the control word, the frequency converter
does not accept the control word.
Check 2: Is the relationship between bits in the control
word and the terminal I/Os correct?
Check the logical relationship in the frequency converter.
Define the desired logical relationship in
parameter 8-50 Coasting Select to parameter 8-58 Profidrive
OFF3 Select according to the following range of options.
Select the FC control mode, digital input and/or serial
communication, using
parameter 8-50 Coasting Select to
parameter 8-58 Profidrive OFF3 Select .
If
parameter 8-01 Control Site
is set to digital only, the
frequency converter does not react to commands sent via
the control word.
Table 8.1 to Table 8.8 show a coast command's effect on
the frequency converter for the full range of
parameter 8-50 Coasting Select settings.
The effect of control mode on the function of
parameter 8-50 Coasting Select , parameter 8-51 Quick Stop
Select , and parameter 8-52 DC Brake Select is as follows:
If [0] Digital input is selected, the terminals control the
coast and DC brake functions.
NOTICE
Coasting, quick stop, and DC brake functions are active
for logic 0.
Terminal Bits 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
Table 8.1 [0] Digital Input
If [1] Serial communication is selected, commands are
activated only when given via serial communication.
Terminal Bits 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
Table 8.2 [1] Serial Communication
If [2] Logic AND is selected, both signals must be activated
to perform the function.
Terminal Bits 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
Table 8.3 [2] Logic AND
If [3] Logic OR is selected, activation of 1 signal activates
the function.
Terminal Bits 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
Table 8.4 [3] Logic OR
The effect of control mode on the function of
parameter 8-53 Start Select and parameter 8-54 Reversing
Select :
If [0] Digital input is selected, the terminals control the start
and reversing functions.
Terminal Bits 06/15 Function
0 0 Stop/Counterclockwise
0 1 Stop/Counterclockwise
1 0 Start/Clockwise
1 1 Start/Clockwise
Table 8.5 [0] Digital input
If [1] Serial communication is selected, commands are
activated only when given via serial communication.
Terminal Bits 02/03/04 Function
0 0 Stop/Counterclockwise
0 1 Start/Clockwise
1 0 Stop/Counterclockwise
1 1 Start/Clockwise
Table 8.6 [1] Serial Communication
Troubleshooting PROFINET
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