PQM POWER QUALITY METER – INSTRUCTION MANUAL
4–1
PQM Power Quality Meter
Chapter 4: Programming
GE Consumer & Industrial
Multilin
STATUS
COMMUNICATE
RELAYS
VALUE
MESSAGE
ACTUAL
SETPOINT
RESET
STORE
SIMULATION
ALARM
SELF TEST
PROGRAM
TX2
TX1
RX2
RX1
AUX2
ALARM
AUX3
AUX1
PQM
Power Quality Meter
g
Ia = 100 Ib = 102
Ic = 100 AMPS
Programming
4.1
Introduction
4.1.1
Setpoint Entry
Methods
Prior to operating the PQM, it is necessary to enter setpoints defining system
characteristics and alarm settings via one of the following methods:
1.
Front panel, using the keys and display.
2.
Rear terminal RS485 port COM1 or COM2, or front RS232 port and a computer
running the EnerVista PQM Setup communication program available from GE
Multilin or from a SCADA system running user-written software.
Any of the above methods can be used to enter the same information. However, a
computer makes entry considerably easier. Moreover, a computer allows setpoint files to
be stored and downloaded for fast, error-free entry. To facilitate this process, the EnerVista
PQM Setup programming software is available from GE Multilin. With this software installed
on a portable computer, all setpoints can be downloaded to the PQM. Refer to Chapter 6
for additional details.
Setpoint messages are organized into logical groups or pages for easy reference.
Messages may vary somewhat from those illustrated because of installed options. Also,
some messages associated with disabled features are hidden. This context sensitive
operation eliminates confusing detail. Before accurate monitoring can begin, the setpoints
on each page should be worked through, entering values either by local keypad or
computer.
The PQM leaves the factory with setpoints programmed to default values. These values are
shown in all the setpoint message illustrations. Many of these factory default values can be
left unchanged. At a minimum however, setpoints that are shown shaded in Section 4.3.1:
Current/Voltage Configuration on page –21 must be entered for the system to function
correctly. In order to safeguard against the installation of a PQM whose setpoints have not
been entered, the PQM will alarm and lock out until the values have been entered for these
setpoints. The
CRITICAL SETPOINTS NOT STORED
alarm message is present until the PQM
is programmed with these critical setpoints.