On-The-Fly Unloading; Use - Siemens SIMOTION D4x5-2 DP/PN Operating Instructions Manual

Topic
Control bit FLYING
Status double word
INFO_NO_AUTO_START
Signals LOAD_DEFL_TR and
MOD_DEFL_TR
Status bit OPEN_GRAB
Status bit CHANGE_TARGET
Parameters
P30 "On-the-fly unloading abort velocity"
P31 "Distance for opening the grab"
P106 "Spreader/grab width"
6.27.2

On-the-fly unloading

6.27.2.1

Use

"On-the-fly unloading" can be used in positioning mode (POS) and semi-automatic mode
(SAM).
Positioning with on-the-fly unloading utilizes the swinging of a grab when unloading bulk goods
and saves turnover time in this way. The trolley is decelerated before the target position while
the grab swings to the target (e.g. funnel).
Note
No account of obstacles is taken in "POS" mode. For this reason, use on-the-fly unloading in
"POS" mode only if the crane control system takes account of obstacles and switches between
targets accordingly.
Note
For on-the-fly unloading in semi-automatic mode (SAM), the trolley and the hoist must be in this
mode.
Note
On-the-fly unloading with constant angle can be used only with time-optimized control. In
conventional operation, on-the-fly unloading is possible only with an approximately constant
angle
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA
STS
Disabled internally and without any
function
Bit 8 = "Hoist below immersion point"
Bit 10 = Not relevant
Differences, see Chapter Calculation of the pendulum deflection (Page 160).
Disabled internally and not output
Disabled internally and not output
Not used
No restrictions
Sway Control function description
6.27 Special aspects of GSU applications
GSU
Required for on-the-fly unloading
Bit 8 = Not relevant
Bit 10 = "Target too deep"
Output if the FLYING status bit is set and
the conditions P30/P31 are fulfilled.
Output if the conditions P30/P31 are fulfil‐
led.
Required for on-the-fly unloading
If the grab opens in the direction of trolley
travel, parameter P106 corresponds to the
grab width of the open grab.
If the grab opens in the direction of gantry
travel, parameter P106 corresponds to the
grab depth.
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