Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
L
807
8400 StateLine C | Reference manual
Function library
Function blocks | L_JogCtrlExtension_1
16.1.22
L_JogCtrlExtension_1
This FB can be connected upstream to the
L_NSet
ramp function generator/setpoint
generator to implement a switch-off positioning at limit switch.
Detailed information on this operating mode can be found in the description of the
"Switch-off positioning" TA.
Inputs
Identifier
Data type
Information/possible settings
bInputSel1
bInputSel2
BOOL
Activation of the
bSlowDown1/bStop1
,
bSlowDown2/bStop2
and
bSlowDown3/bStop3
signal pairs according to the
Truth table
bRfgIn
BOOL
Ramping down of the setpoint generator in the downstream
L_NSet
FB according to
the
Truth table
bJog1In
bJog2In
BOOL
Selection inputs for setting fixed speeds in the setpoint generator
• If the pre-switch off is inactive (
bInputSel1
and
bInputSel2
are both set to FALSE),
the two control signals are output one-to-one at the
bJog1Out
and
bJog2Out
outputs.
• To achieve the desired behaviour (starting at high speed, pre-switch off at low
speed), both inputs must be set to TRUE.
• Fixed setpoint 2 must be less than fixed setpoint 3!
Otherwise, the drive will start at a low speed and accelerate after the pre-switch
off.
• If, in addition to the
bJog1In
and
bJog2In
inputs, other jog signals are set at the
L_NSet
FB, new fixed setpoints are reached, and the drive traverses at speeds that
differ from the selection via
bJog1In
and
bJog2In.
bSlowDown1
bSlowDown2
bSlowDown3
BOOL
Activation of fixed setpoint 2 in the downstream
L_NSet
FB
• These inputs only fulfil a function if they have been activated via
bInputSel1
and
bInputSel2
previously (see
Truth table
).
bStop1
bStop2
bStop3
BOOL
Ramping down of the ramp function generator in the downstream
L_NSet
FB
• These inputs only fulfil a function if they have been activated via
bInputSel1
and
bInputSel2
previously (see
Truth table
).
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