5-32
Application Manual CDA3000
5 Software functions
Terminals
Thestartcommandforadirectionofrotationcanbesetbywayoftheter-
minals of the inverter module. The start commands determine the direc-
tion.
If the reference value has a negative preceding sign the fact is indicated
during starting by an inverted response - that is to say, in response to
Start Clockwise the motor shaft rotates anti-clockwise.
Action Function Parameter
Control location Terminals 260-CLSEL = TERM
Input ISD00 Start clockwise 210-FIS00 = STR
Input ISD01 Start anti-clockwise 211-FIS01 = STL
Reference channel 1 Analog input 0 276-RSSL1 = FA0
Reference channel 2 Off 277-RSSL2 = FCON
Table 5.18 Changes based on activation of the input with the MAN func-
tion
Explanatory notes
• The digital inputs only evaluate static signals (see section 2.4 “Spe-
cification of control terminals”).
STL STR Explanation
00
STOP, Motor is uncontrolled if stop ramp and DC braking are off.
Otherwise the motor decelerates with the programmed stop ramp or
the preset braking current down to 0 Hz and is then brought to a
standstill with the preset holding current for a variable holding time.
1 0 START anti-clockwise, Acceleration with ACCRx or DECRx
0 1 START clockwise, Acceleration with ACCRx or DECRx
11
BRAKING with DECRx or TDCRx. As soon as the motor reaches 0 Hz
it is brought to a standstill with the preset holding current if the DC
holding function is activated. Otherwise the motor is uncontrolled at
standstill.
The braking process can be interrupted by applying only one start
contact; the motor then accelerates again.
Reverse direction of rotation, overlap time (STL and STR = 1)
min. 8 ms
Table 5.19 Truth table for control via terminals
0
1
1
0
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