Siemens EH.75M.11. Especificaciones descargar pdf (Pagina 284)

T400 Controller Facilities Manual

667/EB/20200/000 Page 25-13 Issue 9

current sensors should then be anchored by passing a TYWRAP or equivalent through

the sensor hole and around a suitable fixing point.

Up to 23 current transformers can be used per Outstation when equipped with LMU

facilities. However, it is recommended that one current transformer is assigned to

monitor one complete controller phase (including wait indicators of pedestrian phases),

i.e. one sensor per phase.

Voltage monitoring transformer

A Voltage monitoring transformer (part number 667/7/25172/000) is used per

Outstation when equipped with LMU facilities. The red and black wires connect to the

lamp supply mains live and neutral being monitored (Red to Live and Black to

Neutral). The orange and white output wires connect to PLB. Referring to Figure

25.2, the orange wire connects to pin 47 (i.e. pin 49 on the Berg mini latch) and the

white wire connects to pin 48 (i.e. pin 50 on the Berg mini latch).

The transformer should then be anchored to a suitable point in the cabinet.

Voltage Sensors

Voltage sense transformers (667/1/22734/000) are not required with the Integral

Ancillary Processor PCB. All the information on which colours are being driven is

obtained from the ‘aspect drive’ information passed from the T400 Main Processor

over the extended system bus.

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Siemens EH.75M.11. Especificaciones Pagina 284