SATEC RDM172 Manual - Manual (Page 71)

Chapter 4 PAS Application Software General Meter Setup
Series PM172 Powermeters 71
The available relay options are shown in the following table:
Parameter Options Default Description
Unlatched mode: the relay goes into its
active state when the control setpoint is
in active (operated) state, and returns
into its non-active state when the
setpoint is released.
Operation
mode UNLATHCED
LATCHED
PULSE
KYZ UNLATCHED
Latched mode: the relay goes into its
active state when the control setpoint
goes into active state and remains in
the active state until it is returned into
its non-active state by a remote
command.
Pulse mode: the relay goes into its
active state for the specified time, goes
into non-active state for the specified
time and remains in the non-active
state.
KYZ mode: the relay generates
transition pulses. The relay changes its
output state upon each command and
remains in this state until the next
command.
Polarity NORMAL
(N.O.)
INVERTING
(N.C.)
NORMAL With normal polarity, the relay is
normally de-energized in its non-active
state and is energized in its active
(operated) state.
With inverting polarity, the relay is
normally energized in its non-active
state and is de-energized in its active
(operated) state. It is called failsafe
relay operation.
Retentive
mode NO
YES NO Applicable for latched relays.
In non-retentive mode, the relay always
returns to its non-active state upon
power up.
In retentive mode, the relay status is
restored to what it was prior to loss of
power.
Pulse width 20-1000 ms 100 ms The actual pulse width is a multiple of
the 1-cycle time rounded to the nearest
bigger value.
The pause time between pulses is equal
to the pulse width.
Pulse
source NONE
kWh IMP
kWh EXP
kvarh IMP
kvarh EXP
kvarh TOT
kVAh
NONE Links a pulse relay to the internal
energy pulse source. The relay must be
set into either pulse, or KYZ mode.
Pulse rate,
kWh/Pulse 0.1-1000.0 1.0 kWh/Pulse Defines the pulse weight in kWh units
per pulse
Generating Energy Pulses through Relay Outputs
To generate energy pulses through a relay output:
1. Set a relay to either pulse, or KYZ mode, and then select
a polarity (active pulse edge) for energy pulses and a
pulse width.
2. Select a source accumulator (type of energy) and the
pulse rate for your output.
3. Store your new setup to the device.