Unitek Classic Q3 400 Series, Руководство пользователя

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3 Electrical installation
Q3 1000-2000A 17
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Option - External synchronization
For special applications it might be necessary to tap the synchronization before
the power commutating choke, e.g
- when operating via field triggering circuit
- in case of an instable power supply
When changing to external synchronization, the 3 resistors 0
W
(R15, R34, and
R40) on the board ‘Q3 - Ein3’ have to be removed.
Connection across the terminals X18:35, 36, 37
Observe the phase position!
- L3 across X10:14 (via power choke) and directly across terminal X18:36
- L2 across X10:15 (via power choke) and directly across terminal X18:37
- L1 across X10:16 (via power choke) and directly across terminal X18:35
The wiring has to be short-circuit proof or protected by means of a line protecti-
on.
The phase position function has
a watchdog and in case of
wrong connections the LED D7
on the board Q3-on3 will light
and the BTB signal on the con-
troller extinguishes when the
controller is enabled.
LED D7 also lights if there is a
breakage of the installed fuses.
R15 R34 R40
35
X18
R15
36
37
LED D7
red
Line protection
Short-circuit proof wiring