SATEC EM920 Operation Manual - Manual (Page 25)

Chapter 2 Operating the EM920
Operating Analog Outputs
EM920 Power Quality and Revenue Meter 25
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 PAS.
Operating Analog Outputs
The EM920 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 EM920 Installation Manual
for analog output ratings and connections.
All analog outputs are updated at a 1-cycle rate.
See Configuring Analog Outputs in Chapter 5 on how to
configure analog outputs in your meter.
Operating the Logical Controller
The embedded logical controller allows monitoring any
measured quantity or external contacts to provide indication,
counting and recording events whenever the value exceeds
the predefined threshold or when a status transition is
detected on the meter inputs. It provides a 1/2-cycle
response time for fast analog and digital triggers.
The controller can monitor internal diagnostic events and
meter operation status to give a fault indication via relay
outputs or provide cross triggering multiple devices.
All controller operations can be recorded to the meter Event
log with indication of the event time, source and a trigger
value.
See Using Control Setpoints in Chapter 5 on how to configure
the meter logical controller for your application.
Operating the Event Recorder
The Event recorder automatically records time-tagged self-
supervision events related to configuration changes, resets,
and device diagnostics.
It can also record setpoint-monitored events and setpoint
operations for setpoints individually configured for triggering
the Event recorder.
See Configuring the Event Recorder in Chapter 5 for more
information.
Operating the EN50160 Power Quality Recorder
The EN 50160 Power Quality (PQ) recorder provides
EN 50160 power quality statistics for EN 50160 compliance