Analog Channel Configuration - ABB RELION REX640 Technical Manual

Section 8
Measurement functions
8.1.12.4
1328
by 10000 Wh. The pulse-on and -off time duration can be set using the Pulse on time
and Pulse off time settings.
Instantaneous three-phase power and power factor measurements are available for
application configurations through output S_INST, P_INST, Q_INST and
PF_INST.
Three-phase power and power factor demand values (S_DMD, P_DMD, Q_DMD and
PF_DMD) are provided as outputs. These outputs are dedicated for Load profile
recorder (LDPRLRC).

Analog channel configuration

PEMMXU has two analog group inputs which all must be properly configured.
Table 1273: Analog inputs
Input
I3P
U3P
See the preprocessing function blocks in this document for the
possible signal sources.
There are a few special conditions which must be noted with the configuration.
Table 1274: Special conditions
Condition
U3P connected to real measurements
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings. For
troubleshooting, check the contents of this chapter and also the preprocessing blocks
in this document. The configuration can be written to the protection relay once the
mismatch is corrected.
Description
Three-phase currents
Three-phase voltages
Description
The function can work with the corresponding one
voltage channel connected if
is set to "PhsAB", "PhsBC" or "PhsCA".
The function can work with the corresponding two
voltage channels connected if
mode is set to "PhsA", "PhsB" or "PhsC".
The function requires that all three voltage
channels are connected for the other
measurement modes.
1MRS759142 C
Measurement mode
Measurement
REX640
Technical Manual