Mains Voltage Monitoring; Fan Monitoring; Load Resistance Monitoring; Mains Load Optimization With Dasm - Advanced Energy Thyro-PX Series User Manual

®
Advanced Energy

Mains Voltage Monitoring

The power controller is equipped with mains voltage monitoring. You can set the
limits for U mains minimum and U mains maximum. A status message will be
generated when either limit is reached.

Fan Monitoring

The power controllers with fans (type designation that includes "F") are fitted with
thermal monitoring. The temperature is measured on the heat sink. In case of a
temperature overrange, a fault indication Unit overtemperature is issued.
By default, the device will be switched off and the FAULT LED will be lit.
☞
Important
When using the device under UL conditions, this feature must be switched on.

Load Resistance Monitoring

Changes in load resistance can be caused by temperature changes or by aging. There
are two ways to monitor these resistance changes. Absolute monitoring is useful for
loads which do not change over time. Relative monitoring is useful if the resistance
value of the load slowly changes.
Use absolute monitoring for heating elements with R
monitoring for heating elements with R
Absolute Value Load Resistance Monitoring
Absolute value monitoring lends itself to one or more load resistances organized in
parallel or in series. Generally, the effective load resistance value measured is
continuously compared with a configurable absolute resistance minimum and
maximum limit. If these limits are undercut or exceeded, an indication occurs after a
configurable number of mains periods. Using the upper resistance limit, in case of
resistor elements connected in parallel, it is possible to detect a partial load
interruption. Using the lower resistance limit, in case of resistors connected in series,
it is possible to detect short-circuiting of an element.
Relative Value Load Resistance Monitoring
Relative monitoring is useful if the resistance value of the load slowly changes. The
load resistance is measured and compared period to period. A fault is generated if the
change is greater than the configured % change limit. The unit establishes a new
nominal resistance value after each startup, restart, or mains outage.

MAINS LOAD OPTIMIZATION WITH dASM

The digital and dynamic dASM process offers the option of dynamic mains load
optimization when multiple Thyro-PX power controllers operate in the TAKT mode.
57010148-00G
/R
warm cold
Installation, Setup, and Operation
®
Thyro-PX Power Controller
/R ≈ 1, and use relative
warm cold
≠ 1.
5‑48