User manual - WEIGHT METER SWI-94
Mode:
Relay switches on when:
Relay switches off when:
„on”
w
Pr,
w
Pr + h,
for h=0
for h
≠
0
w < Pr,
w
Pr - h,
for h=0
for h
≠
0
„oFF”
w < Pr,
w
Pr - h,
for h=0
for h
≠
0
w
Pr,
w
Pr + h,
for h=0
for h
≠
0
„in”
for SEt P
<
SEt P2
Pr
1
w
Pr
2
,
Pr
1
+ h
w
Pr
2
- h,
for h=0
for h
≠
0
w < Pr
1
v
w > Pr
2
,
w
Pr
1
- h
v
w
Pr
2
+h,
for h=0
for h
≠
0
„Out”
for SEt P
<
SEt P2
w < Pr
1
v
w > Pr
2
,
w
Pr
1
- h
v
w
Pr
2
+h,
for h=0
for h
≠
0
Pr
1
w
Pr
2
,
Pr
1
+ h
w
Pr
2
- h,
for h=0
for h
≠
0
„in”
for SEt P
>
SEt P2
Pr
1
> w > Pr
2
,
Pr
1
– h
w
Pr
2
+ h,
for h=0
for h
≠
0
w
Pr
1
v
w
Pr
2
,
w
Pr
1
+ h
v
w
Pr
2
– h,
for h=0
for h
≠
0
„Out”
for SEt P
>
SEt P2
w
Pr
1
v
w
Pr
2
,
w
Pr
1
+ h
v
w
Pr
2
– h,
for h=0
for h
≠
0
Pr
1
> w > Pr
2
,
Pr
1
– h
w
Pr
2
+ h,
for h=0
for h
≠
0
Where:
Pr
1
– value in parameter
SEt P
,
Pr
2
– value in parameter
SEt P2
,
h – value in HYSt parameter,
w – measured value,
Tab.7.1. Relay
mode of action
depending on modes and values in parameters
“SEt P”
,
“SEt P2”
and
“HYSt”
•
LEDs light when relays are closed
, independently of relays' mode.
•
When power supply fail, unit do not store relays state selected by RS-485
interface.
“t on”
- turn on delay time, the relay is turned on with delay equal
“t on”
if
the input value
is equal to or greater than appropriate
border value
(defined with
threshold
and
hysteresis
), at least
“t on”
time.
“t on”
range 0 ÷ 99.9, defined with 0.1 sec.
resolution. Unit of this parameter is set by
“unit”
parameter.
“t oFF”
- turn off delay time, the relay is turned off with delay equal
“t oFF”
if
the input
value is equal to or greater than appropriate
border value
(defined with
threshold
and
hysteresis
), at least
“t oFF”
time.
“t oFF”
range 0 ÷ 99.9, defined with 0.1
sec. resolution. Unit of this parameter is set by
“unit”
parameter.
If time when the input signal
is equal to or greater than
some border value is
shorter than
“t on”
or
“t oFF”
time, the relay do not change his state
(see
6.3. CONTROL OF THE RELAY OUTPUTS
“unit”
- unit of time for
“t on”
and
“t oFF”
parameters. Can be set on one of two values:
“min”
- minutes,
“SEC”
- seconds.
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