Integrated Bus
Operation manual POSIDYN® SDS 5000
ID 442289.06
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11
11.3.3
Non-regular IGB operation
WARNING!
When non-regular IGB operation is activated, there is a risk of asynchronous, undefined movements
which may endanger personnel and machines!
Before using
A124
, make sure that the movements cannot inflict personal injury or cause property
damage.
When an SDS 5000 is a station on the IGB-Motionbus, the device state machine cannot leave the state
1:Switchon disable
(see
E48 device state
) if the IGB-Motionbus cannot be established (
A155 IGB state
does
not indicate
3:IGB-Motionbus
).
Non-regular IGB operation can be activated in
A124
so that the axes can be individually positioned even
during commissioning or when the IGB or a device fails. When non-regular IGB operation is activated,
enabling is still possible regardless of
A155 IGB-state
.
11.3.4
Diagnosis
During IGB-Motionbus operation, each connected inverter sends its data to all the other inverters once every
millisecond. This is monitored by parameter
A162.x
.
Parameter
A162.0
is an error density counter for the IGB-Motionbus. It indicates a value for the current error
density of the expected but not correctly received data sent once every millisecond. During IGB-Motionbus
operation, each SDS sends its data to all the other inverters once every millisecond. If at least one inverter
fails to send its data cyclically, this is determined and registered in element 0 of the parameter. This counter
is incremented by the number of expected but not received data. When all data from all the inverters
connected to the IGB have been received correctly, the error density counter is decremented by 1. As you can
see, this parameter provides information on the quality of the IGB network. If the value increases quickly, this
probably means that a connection cable of the IGB has been disconnected or an inverter has been turned off.
Parameter
A162.1
indicates the sum of all errors of the IGB-Motionbus which have been registered since the
inverter was turned on or during the first startup of the IGB-Motionbus. During operation of the IGB-Motionbus,
each SDS 5000 sends its data to all the other inverters once every millisecond. This value is incremented for
the expected but not correctly received data during the millisecond cycle.
To prevent any errors which occurred during startup from being counted as real errors, the value is cleared
the first time the state
A155 = 3:IGB-Motionbus
is reached.
After this, the value can only be cleared by switching the inverter off.
As you can see, this parameter provides information on the quality of the IGB network. If the value increases
quickly, this probably means that a connection cable of the IGB has been disconnected or an inverter has
been turned off. If the value increases erratically, the cabling and the environment should be checked for
EMC-compatible wiring.
Information
This parameter cannot be saved. It is pre-assigned with
0:Inactive
during every device startup.
Summary of Contents for POSIDYN SDS 5000
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