Advanced Energy THYRO-AX Bedienungsanleitung Seite 93

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8. MAINS LOAD OPTIMIZATION
HAZARDS WHEN CARRYING OUT ADJUSTMENT WORKS
Danger of injury / danger of damage of the device or system
> Adhere to all safety requirements of the chapter Safety.
Mains load optimization provides considerable advantages, e.g. the
reduction of mains load peaks and feedback to mains. Mains load
optimization is possible under the following conditions:
• applications with multiple power controllers
• operating mode TAKT or QTM
The mains load is optimized by cascading the switching on of the indivi-
dual devices. There are two different processes for doing so.
8.1 INTERNAL MAINS LOAD OPTIMIZATION
(Operating modes QTM (Thyro-AX 1A) and TAKT)
In the operating modes QTM and TAKT a synchronization of 2-12
controllers is possible. The operating mode QTM works in a quick half
wave mode with a pattern of switched and inhibited half waves at an
interval of a fixed time < 1 sec, also known as T
balance within the network if possible from the start (not only following
T ), the individual controllers synchronize themselves by offsetting by
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one network period. In the case of the first of the connected controllers
the Sync. In Digital In X2.7 is bridged to +5V X2.8.
The subsequent controllers receive their pulse to X2.7 from Sync. Out
terminal X2.6 of the previous controller. In the case of the last controller
X2.6 remains free. (connection in series). The illustration 7 has to be
considered when changing the internal mains load optimization.
8.2 SYNCHRONIZATION WITH dASM MODULE
OR dASM BUS MODULE
If the power controllers operates according to full wave mode (TAKT)
then this can lead to an increased burden on the mains caused by an
unfavorable distribution of the switching on and switching off times. This
then has negative effects as a consequence such as higher power loss,
flicker effects etc. If load elements are used whose resistance increases
over the course of time (ageing) then under certain circumstances a
transformer with increased power output may even need to be used.
. In order to create a
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All of these negative effects can be avoided or reduced to a minimum
by using the dASM feature of the dASM module or dASM bus module.
Key features:
• Minimized mains load peaks and related mains feedback rates.
• Setpoint and load alterations are not automatically taken into account
for mains load optimization.
• Can also be used with already existing power controllers from Advan-
ced Energy.
For details of connection and operation please refer to the according
dASM module or dASM bus module operating manuals.
8.3 SYNCHRONIZATION WITH THE THYRO-POWER
MANAGER
A similar effect, as with dASM, can be reached by Thyro-Power Manager.
This device has a total of 10 digital outputs at terminals X3 and X4. These
are set up as potential-free optical coupler outputs. In the case of mains
load optimization they are used as synchronization outputs (SYT) for the
connected power controllers or groups of power controllers. All cables
are to be laid shielded, the shield is grounded at the power controller.
(Details can be found in the operating instructions of the Thyro-Power
Manager available separately).
In addition the illustration 8 has to be considered when changing the
wiring diagram of Thyro-Power Manager.
8.4 SOFTWARE SYNCHRONIZATION WITH SOLID
DELAY
Software synchronization is a method of mains load optimization which
can be configured via an optional bus module or via the Thyro-Tool AX.
The software synchronization is configured by inputting a parameter
and causes a delay of the initial ignition following the Thyro-AX being
switched on.
• Requirement is the equality of cycle period T
power controllers (recommended: T = 50 periods (at 50Hz = 1 sec.).
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When configuring with the Thyro-Tool AX:
• Set delay in menu load optimization -> SYNC offset time. Select a
different value for each power controller.
All devices used must then be switched on at the load supply simulta-
neously, ideally with the aid of a corresponding switch/contactor.
A delay time up to the first switching on is set. The numerical value is
given in periods. As a result the time until the first switching on is diffe-
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to the same value for all
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