Operating instructions

51
Afterwards the voltage transformer ratio U
primary
/ U
secondary
has to be entered in parameter (Voltage
transformer ratio: UE_U).
Example:
Usage of an external voltage transformer with U
primary
= 500V and U
secondary
= 25V.
Measurement range 2 will be selected due to U
secondary
= 25V.
The following settings are necessary:
- Jumper of measuring channel (X501, X502, X503) to 2-3
- Parameter „Voltage range switchover“ (for LBA-2: „Voltage range“) has to be set to 400V
(for LBA-2: „Voltage range“ to 400V)
- Parameter „Voltage transformer ratio“ to 20 (500V/25V=20)
(for LBA-2: „Voltage transformer ratio“ to 20)
- Parameter „Power controller connection voltage“ (U_Type; for LBA-2: „Type voltage“) to primary
voltage of used transformer (here 500V)
(for LBA-2: „Type voltage“ to the primary voltage of used transformer (here 500V))
REMARK
Voltage readings in not-controlled phases
Thyro-P 2P
Although phase 2 is not controlled with Thyro-P 2P, it is possible to take measuring values during
this phase. The voltage transformer suitable for standard rail assembly (order no. 2000000399) is
to be used. Connection is made as in table 21 to X7.1.26 – X7.2.25. The maximum induced voltage
of the transformer (incl. over-voltage) must be less than 50 volts.
Thyro-P 1P
As only phase 1 is controlled with Thyro-P 1P, the reading systems of phase 2 and 3 can be used
freely. The voltage transformer suitable for rail assembly (order no. 2000000399) is to be used.
Connection is made as in table 23 to terminals X7.1.26 – X7.2.25 for “phase 2” and X7.1.36 –
X7.2.35 for “phase 3”.
The measuring values do not influence the controller and are available for Bus interfaces, display
and analog outputs. Parameter values must not be changed.
4.13 OTHER CONNECTIONS AND TERMINAL STRIPS
ROOT* BREAK CONTACT CLOSER
Alarm relay K1 X2.7 X2.8 X2.9
Limiting K2 X2.10 X2.11 X2.12
Option K3 X2.13 X2.14 X2.15
* tie point
TAB. 14 TERMINAL STRIP X2 FOR K1, K2, K3
X5.1 FUNCTION X5.2 FUNCTION
5 +5V 5 +5V