Chapter 5 Configuring T H E P M 1 3 0 P L U S
General M E T E R S E T U P
82 PM130 PLUS Powermeter Series
Figure 5-9: General Setup Dialog Box – Relay Outputs Tab
The available relay outputs options are shown in Table 23.
Table 23: Relay Output Options
UnLt = UNLATCHED
Ltch = LATCHED
PLS.A = PULSE
PLS.C = KYZ pulse
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.
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 (normal pulse): 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 (transition pulse): the relay
generates transition pulses. The relay
changes its output state upon each
command and remains in this state until
the next command.
nor = NORMAL
(N.O.)
InS = INVERTING
(N.C.)
Normal polarity: the relay is normally de-
energized in its non-active state and is
energized in its active (operated) state.
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.
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