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2 replacing a defective semi-conductor fuse, Replacing a defective semi-conductor fuse, Chapter 8.2 "replacing a defective semi-conductor – JUMO 709061 TYA 201 - Single-Phase Power Controller Operating Manual User Manual

Page 100: Fuse, Chapter 8.2 "replacing a defec, Tive semi-conductor fuse, 8 fault messages and alarms

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8 Fault messages and alarms

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2012-12-01/00561071 [SCR Power Controller TYA201]

8.2 Replacing a defective semi-conductor fuse

Opening the
case

h Disconnect the built-in device from the voltage supply (all poles)
v Chapter 3.3 "Connection diagram"
h Check that the device is isolated (green Power LED must not be lit)
h Press spring clip (A) to the right and lever up the plastic case (at the point

marked with an arrow) using a screwdriver (B).

A plug connection separates the display, keys, and interface from the power
section and you will be able to see the semi-conductor fuse.

Caution! Risk of burns!
The device can heat up during operation at the cooling body.

The current device temperature is shown on the display.

v Operating overview (on the first cover page)

A

B