Analog Signals - ABB REG650 Technical Manual

Generator protection

Hide thumbs Also See for REG650:

Table of Contents

Analog signals

Up to 40 analog signals can be selected for recording by the Disturbance recorder and

triggering of the Disturbance report function. Out of these 40, 30 are reserved for

external analog signals from analog input modules via preprocessing function blocks

(SMAI) and summation block (3PHSUM). The last 10 channels may be connected to

internally calculated analog signals available as function block output signals (phase

differential currents, bias currents and so on).

External analog

Internal analog signals

IEC05000653 V2 EN

Analog input function blocks

The external input signals will be acquired, filtered and skewed and (after

configuration) available as an input signal on the AxRADR function block via the

SMAI function block. The information is saved at the Disturbance report base

sampling rate (1000 or 1200 Hz). Internally calculated signals are updated according to

the cycle time of the specific function. If a function is running at lower speed than the

base sampling rate, Disturbance recorder will use the latest updated sample until a new

updated sample is available.

Application configuration tool (ACT) is used for analog configuration of the

Disturbance report.

1MRK 502 043-UUS B

en05000653-2.vsd

Technical Manual