Lenze 8400 motec - Manual (Page 241)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 241
7 Technology applications
7.4 TA "Switch-off positioning"
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Truth table - switch-off positioning
If the pre-switch off is activated via the inputs bInputSel1 and bInputSel2, the following internal
logic applies to the inputs bStopX and bSlowDownX:
Afterwards, the output signals of the internal logic are linked to the input signals bRfgIn, bJog1In
and bJog2In as follows:
• bRfgOut = bRfgIn OR bRfgOut*
• bJogXOut = bJogXIn AND bJogXOut*
[7-2] Logic linkage of the output signals of the internal logic
To achieve the desired behaviour (starting at high speed, pre-switch off at low speed), both inputs
bJog1In and bJog2In must be set to TRUE.
Configuration of the control inputs (level or edge sensitive)
C00488/1...6 can be used to individually set for each bSlowDown-/bStop input if it is to respond to
level or positive edge (Lenze setting: level)
FB L_JogCtrlExtension_1 Response in the setpoint generator
(FB L_NSet_1 )
Inputs Output signals (internal logic)
bStopX bSlowDownX bRfgOut* bJog1Out* bJog2Out2*
FALSE FALSE FALSE TRUE TRUE If both inputs are FALSE, the fixed
setpoint 3 is activated.
FALSE TRUE FALSE FALSE TRUE If the SlowDown function is
activated via the selected
bSlowDown input, fixed setpoint 2 is
activated.
TRUE FALSE/
TRUE
TRUE FALSE FALSE If the stop function is activated via
the selected bStop input, setpoint "0"
is activated.
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Note!
If the bSlowDown-/bStop inputs are configured edge-sensitively and a positioning has
been carried out, at least one of the two selection inputs (bInputSel1, bInputSel2) has to
change its state before a new positioning can be started!
In the control modes "
Terminals 2 " and " Terminals 11 ", this is solved by linking the travel
commands (bRLQCw, bRLQCcw) and the selection inputs (bInputSel1, bInputSel2) with
the same digital inputs (DI3, DI4).