Download User manual ACTIVE POWER CONTROLLER

TE10P chp 9, 10 & index
6/28/00
7:40 AM
Page 9-5
Maintenance
Controller state diagnostics
Inhibit / Enable
Controller state: inhibition or enabling of thyristor firing is shown at position 19
of the diagnostic unit.
If the value displayed is 5.6V at position 19, the controller is inhibited by the user
(enable signal absent on the Logic Signal terminal block).
When the controller is enabled, the value 0V is displayed at position 19.
Power supply
The diagnostic unit display is 5.6V at position 20 if the power voltage is present
(voltage measured greater than 40% of the controller VN).
When the voltage is less than 30% of VN, the supply is considered to be absent
with 0V displayed at position 20.
Electronics supply
Positions 1, 2, 3, 4 and 18 of the diagnostic unit are used for precise
measurements of the electronics supply voltage and the reference voltage.
Typical display values are shown in Table 9-1.
100 V
100 V
20 V
20 V
Switch at 20 V
Figure 9-2 Measurement example (position 1)
Switch at 20 V
Figure 9-3 Measurement example (position 3)
Synchronisation
If the synchronisation circuit is operating normally, the mean voltage displayed by
the diagnostic unit at position 15 is 2.8V.
An oscilloscope, connected to the ‘Scope’ output on the diagnostic unit, displays a
5.6 volt pulse at each positive mains half-cycle (normal synchronisation) at
position 15.
TE10P User manual
9-5