Terminals - Siemens SINUMERIK 840D Description Of Functions

4 Firmware Drive Functions

4.12 Terminals

4.12 Terminals
ON/OFF sequence
Controller enable
term. 64
&
Controller enable NC
Controller enable
error
OR
External 26.5 V
available
Power enable
term. 63
&
Power enable
term. 663
Power enable
NC
Power disable
error
Fig. 4-16 Enabling logic on HLA module
External 26.5 V
supply
4-144
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
Terminals are provided on connectors X431/X432 of the HLA module and X121
of the NE module for the purpose of implemented the ON/OFF conditions for the
HLA module.
The following overview shows the hierarchy of signals for enabling and disab-
ling the HLA.
Control word
controller enable
Preset
Timer
power
disable
Preset
Timer
power enab-
&
ling period
Control word
power enable
Timer
Preset
run
Timer
down
manipulated
variable time
OFF
&
MD 5530
Bit 4=1
MD 5530
Bit 0=1
The 24 V voltage for the shutoff valve and valve electronics is supplied from an
external source connected via the HLA module.
Velocity
setpoint
braking ramp
Timer
run
down
&
MD 5530
Bit 3=1
Preset
Timer
Timer
run
run
Timer manip-
down
down
ulated vari-
able time ON
CLEAR
SET
SET
& CLEAR
OR
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04.00
02.99
Status
controller
enable
Status
power en-
able
&
24 V for shutoff
valve ON
24 V servo so-
lenoid valve
ON