JUMO 709062 TYA 202 - Three-Phase Power Controller Operating Manual - Manual (Page 41)

2012-12-31/00561073 [SCR power switch TYA202] 39
4 Operation
Observe the
switch-on se-
quence The voltage supplies to the control electronics and to the power section must
be switched on simultaneously.
4.1 Display after switching on the device
Sequence As soon as the voltage supply is switched on, the Power LED is permanently lit
in green and an hourglass appears on the display. The master is then synchro-
nized with the slave device and rotary field detection is carried out. If every-
thing is wired correctly, the power controller shows the mains voltage on the
display.
Error messages
v Chapter 8 "Fault messages and alarms"
4.1.1 Display and control elements
A
Under no circumstances should the voltage supply for the control elec-
tronics be switched on before the load voltage! This is particularly im-
portant for the operation of transformer loads and resistance loads with
a high temperature coefficient (TC >> 1)!
Legend Comment Fig.
1 The Power LED (green) is permanently lit when the
voltage supply is connected.
Flashes at regular intervals if display lighting is
switched off.
v Chapter 9 "What to do, if ..."
2 Display (96 x 64 pixels) with white background lighting.
The information line at the bottom of the display shows
the current settings and error messages.
3 Fuse LED (red) is lit in the event of a defective semi-
conductor fuse on the corresponding power controller.
4 K1 LED (yellow) fault signal display
5 Keys:
Increase value / previous parameter
Decrease value / next parameter
Abort / one level back
Programing / one level forward
6 USB setup interface
Configuration is performed on the left device and
transferred automatically to the right device via the
patch cable.
7 Spring clip to release the plastic case
v Chapter 8.2 "Replacing a defective semi-
conductor fuse"
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