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PQM POWER QUALITY METER – INSTRUCTION MANUAL
INTRODUCTION
CHAPTER 1: OVERVIEW
1.1.2
Feature
Highlights
• Monitor: A, V, VA, W, var, kWh, kvarh, kVAh, PF, Hz
• Demand metering: W, var, A, VA
• Setpoints for alarm or control from most measured values, including: unbalance,
frequency, power factor, voltage, and current
• 4 output relays / 4 switch inputs for flexible control configuration
• 4 isolated analog outputs replace transducers for PLC interface
• 1 4-20 mA analog input
• Modbus communications
• Three COM ports (two rear RS485 ports and one front RS232 port) for access by
process, electrical, maintenance, and instrument personnel
• Harmonic analysis for power quality review and problem correction
• 40-character display and keypad for local programming
• Free EnerVista PQM Setup software for setpoint entry or monitoring from a PC
• Simulation mode for testing and training
• Compact design for panel or chassis mount
• AC/DC control power
FIGURE 1–1: PQM Feature Highlights - 1
823756am.cdr
STATUS
COMMUNICATE
RELAYS
VALUE
MESSAGE
ACTUAL
SETPOINT
RESET
STORE
SIMULATION
ALARM
SELF TEST
PROGRAM
TX2
TX1
RX2
RX1
AUX2
ALARM
AUX3
AUX1
STATUS:
COMMUNICATE:
RELAYS:
- Alarm condition present
- Setpoint programming is
enabled
- Simulated values being
used for test/training
- internal fault detected,
service required
ALARM
PROGRAM
SIMULATION
SELF TEST
For monitoring communication activity:
COM1 transmit data
COM1 receive data
COM2 transmit data
COM2 receive data
TX1
RX1
TX2
RX2
ALARM
AUX1
AUX2
AUX3
Auxiliary relay activated by
programmable function.
Alarm condition present.
See display for cause.
}
DISPLAY
40 character illuminated display for
programming, monitoring, status, fault
diagnosis, user programmable messages
and setpoints. Programmable auto scan
sequence for unattended operation.
SETPOINT KEY:
COMPUTER INTERFACE:
Program all setpoints. Tamperproof
settings with passcode and access jumper
prevent unauthorized setpoint changes.
RS232 comm port for connecting to a PC.
Use for downloading setpoints, monitoring,
data collection, printing reports.
KEYPAD:
DOOR:
Rubber keypad is dust tight and
splash proof.
Door covers keys and computer port
when not in use.
PQM
Power Quality Meter
e
Ia = 100 Ib = 102
Ic = 100 AMPS
Содержание Multilin PQM
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