JUMO TYA 202, Operating Manual, Page: 19 / 108

2011-07-01/00561073 [SCR Power Controller TYA202] 17
2 Installation
filters to deal with any interference problems. Such filters are usually provided
as complete modules, ready to be wired into the system.
2.1.3 Permissible load current depending on the ambient temperature
v
Chapter 8 „Fault messages and alarms“
45 50 60
75
20
200
T/°C
150
Load current/A
Reduction at a temperature of 45°C:
2%/Kelvin
70%
250
100
50
A
Destruction due to overheating:
During prolonged operation with maximum load current, the cooling body and
the area around it will heat up.
For this reason, at ambient temperatures above 45°C it is necessary to reduce
the maximum load current as shown in the diagram to prevent destruction of
the SCR module.
Ensure that the device temperature for master or slave shown on the display
does not exceed 100°C.
At a device temperature >100°C the message "Attention: High temperature"
appears.
At a device temperature >105°C, the load current is reduced in increments for
each degree of temperature increase by 10% of the rated current.
The power controller current is switched off completely at a device tempera-
ture >115°C.