JUMO 709061 TYA 201 - Single-Phase Power Controller Operating Manual - Manual (Page 16)

2 Installation
14 2012-12-01/00561071 [SCR Power Controller TYA201]
h That the configuration of the analog inputs, for example, corresponds to the
wiring.
h The analog input for the default setpoint value in "Master-slave operation"
only needs to be connected to the master. The slave receives its informa-
tion via the patch cable.
However, the slave power controller can be disconnected separately by
means of its own inhibit input.
Load connec-
tion
h The electronic switch (2 anti-parallel SCRs) is located between the U1 and
U2 terminals.
h Load wiring and cables for control inputs should be routed separately, if
possible.
h Perform connection of supply voltage - SCR power controller - load in ac-
cordance with the wiring diagram and check.
Phasing The voltage supply of the control electronics and the load voltage
must have the same phase.
Control inputs The terminal strips for control connections (inputs and outputs) have been laid
out for safe isolation from the voltage supply (SELV). In order not to diminish
this safety isolation, all connected electrical circuits must also have safety iso-
lation. The required auxiliary voltages must be safe extra-low voltages.
2.1.1 Ambient conditions
Incorrect use The device is not suitable for installation in potentially explosive atmospheres.
Mounting site The power controller must be installed in a fire-proof control cabinet.
The cabinet should be vibration-free, free from aggressive media, and free
from dust to prevent the ventilation slots from becoming blocked.
Climatic
conditions - Relative humidity: 5 to 85 % no condensation (3K3 according to EN 60721)
- Ambient temperature range: 0 to 45 °C (3K3 according to EN 60721-3-3)
- Storage temperature range: -30 to 70 °C class 1K5
Avoid additional
sources of heat - Ensure that the ambient temperature at the installation site is not increased
by other sources of heat or heat accumulation.
- Do not mount the power controller too close to the heating process (kiln)
- Avoid direct sunlight.
Power dissipa-
tion Occurs as waste heat on the cooling body of the power controller and must be
dissipated at the mounting site (e.g. in the control cabinet) in accordance with
the climatic conditions.