Load Monitoring (Only For; Device Temperature Monitoring; Fan Monitoring (For; Extended Functions (With Bus Module / Thyro-Tool Family) - AEG Thyro-A Operating Instructions Manual

3.9.2 Load monitoring
(only for ...H RL1 and ...H RLP1)
The load can consist of one or more resistors connected in parallel
or in parallel-series. It can be monitored up to a freely selectable
absolute undercurrent limit value. The measured current is constantly
compared with a settable undercurrent limit value. The device can
thus detect an increase in load resistance. If the undercurrent limit
value is exceeded, a message is sent. Where resistance elements
are connected in parallel, a partial load interruption can be selected if
the undercurrent limit value is set accordingly (see page 50, Setting
load monitoring).

3.9.3 Device temperature monitoring

The Thyro-A has temperature monitoring. If the temperature is excee-
ded (90°), a message is sent via LED (see page 29, LED messages),
via the bus module, or via fault signalling relay K1 (see page 31, Fault
signalling relay K1). Pulse inhibition is not actuated.
3.9.4 Fan monitoring (for ...F...)
The forced ventilated thyristor power controllers have temperature
monitoring for the heat sink. The temperature of the heat sink is mea-
sured. A temperature overrange of >95° triggers a signal and relay
K1 is switched. The device, however, remains switched on (configu-
rable default setting).
3.10 Extended functions
with bus module / THYRO-TOOL FAMILY)
Certain functions cannot be set via DIP switch or potentiometer. A
bus module (e. g. Profibus DP, DeviceNet, Modbus RTU, CANopen)
or a PC can be connected at the system interface X22.
This makes it possible to access further parameters, setpoints, actual
values and error messages.
NOTE
Default setting
The function explained here is described in the default
state. This setting can be changed with a bus module or
with THYRO-TOOL FAMILY.
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