PDU–4xx–W
©
Dinel, s.r.o.
16
•
Threshold values
"SEtP" and "SEt2"
First threshold of the relay (range -999 ÷ 9999). Negative values can be input by selecting
a “-” sign on first digit (to change value use [^] and [v] buttons). Threshold is the medium
value of relay hysteresis.
Negative values can be input by selecting a “-” sign on first digit ( to change value use [^]
and [v] buttons). Range -999 ÷ 9999.
Second threshold of the relay
“SEt2”
. This threshold is accessible when ”modE” parameter
is set to „in” or „out” value. Threshold is the medium value of relay hysteresis.
Control of the relay outputs
This menu enables the configuration of the function of relays Re1 to Re4. If lower number of relays
is installed in the unit, the indication of the exceeding of the threshold limits applies only to indicators
R1 to R2. The menu items remain without change.
•
Hysteresis "HYSt"
Hysteresis of relay. Full hysteresis of the relay is equal to 2x “HYSt” parameter
(range 0 ÷ 999).
•
"modE"
relay operation mode:
"noAC"
- the relay is not active (permanent turned OFF).
"on"
- one threshold mode, the relay is turned
ON
when input signal exceeds
SEtP
+
HYSt
value, and is turned off back when the input signal became lower than
SEtP – HYSt
(zone B)
.
"oFF"
- one threshold mode, the relay is turned OFF when input signal exceeds
SEtP
+
HYSt
value, and is turned on back when the input signal became lower than
SEtP
–
HYSt (zone B)
.
"in"
- two threshold mode, the relay is turned
ON
when the input signal is bigger
than
“lower thr HYSt”
and lower than
“bigger threshold – HYSt”
,
and turned off when the input signal is contained in the second zone.
The big
-
ger threshold
means bigger one of
“SEtP”
and
“SEt2”
thresholds,
the lower
threshold
means lower one of
“SEtP”
and
“SEt2”
thresholds.
"out"
- two threshold mode, relay is turned
ON
when the input value is bigger than
“bigger thr HYSt”
and lower than
“lower threshold – HYSt”
, and
turned on when the input signal is contained in the second zone. The big-
ger threshold means bigger one of
“SEtP”
and
“SEt2”
thresholds, the lower
threshold means lower one of
“SEtP”
and
“SEt2”
thresholds.
"modb"
- the relay is controlled via RS-485 interface, independently on the input signal.
