E-Mon E-PS-S-HV-RTU - Manual (Page 25)

Chapter 2 Operating the
PowerSmart Socket PQM Operating Relay Outputs
PowerSmart Socket Power Quality Meter 25
• Triggering a setpoint – put a digital input into a setpoint
trigger list (see Using Control Setpoints in Chapter 5)
• Triggering the Fault Recorder – link a digital input to the Fault
Recorder (see Configuring Digital Inputs in Chapter 5) and
enable external triggers in the Fault Recorder setup (see
Configuring the Fault Recorder in Chapter 5)
• External synchronization of power demand intervals – select a
digital input as an external power demand sync source (see
Basic Meter Setup in Chapter 5)
• External synchronization of the meter clock – select a digital
input as a time synchronization input (see Local Settings in
Chapter 5) and provide 1PPS or 1PPM pulses from the external
master clock source.
All digital inputs have a user-programmable debounce time
from one to 100 milliseconds. See
Configuring Digital Inputs
in Chapter 5 on how to configure digital inputs in your meter.
Operating Relay Outputs
Up to seven relay outputs can be provided in your
PowerSmart Socket PQM including one on-board KYZ relay
output and six additional outputs on the 6RO expansion
module. See the PowerSmart Socket PQM Installation Manual
for available relay output ratings and connections.
All relay outputs are updated at a half-cycle rate.
Each relay is independently programmable in the PowerSmart
Socket PQM and can operate in latched, unlatched, pulse or
KYZ mode.
Relay operations can be inverted so that the relay is
energized in its non-active state and de-energized when it is
operated. This mode, known as “failsafe” mode, may be used
for signaling purposes to send alarms when the device is not
operational either due to a fault or due to loss of power.
Each relay can be operated either locally from a control
setpoint in response to an internal or external event, or by a
remote command sent through communications, or can be
directly linked to an internal pulse source producing energy
or interval pulses.
See Configuring Relay Outputs in Chapter 5 on how to
configure relay outputs in your meter.
See Using Control Setpoints in Chapter 5 on how to operate
relay outputs via setpoints.
See Remote Relay Control in Chapter 6 on how to operate
relays via Power Software.
Operating Analog Outputs
The PowerSmart Socket PQM can provide four optically
isolated analog outputs with options for 0-20mA, 4-20mA, 0-
1mA, and ±1mA on the 4AO expansion module. See the
PowerSmart Socket PQM Installation Manual for analog
output ratings and connections.