Dynalco SWT-2000 Speed Switch/Speed Transmitter User Manual
Page 23
Operating Instructions SWT-2000
DYNALCO
19
6.7.8 System Limit
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Every System Limit has the same 5 logic inputs: Sensor 1, Sensor 2, Math function, Binary input 1, Binary
input 2. A hysteresis may be applied to the first 3. Each may be inverted or selected to form part of a logical
combination or disabled. The logical combination of inputs may be OR or AND.
Sensor alarm may be additionally combined OR with the System Limit result.
Sensor 1:
Limit
low:
0.01
…
200.0
… 999,999
Limit
high:
0.01
…
300.0
… 999,999
Sensor 2
Limit
low:
0.01
…
400.0
… 999,999
Limit
high:
0.01
…
500.0
… 999,999
Math Function
Limit low:
-999,999 … 50.0 … 999,999
Limit high:
-999,999 … 100.0 … 999,999
Inversion:
Sensor
1:
Over speed
/ Under speed
Sensor
2:
Over speed
/ Under speed
Math:
Over-run
/ Under-run
Binary
input
1:
active
/ inactive
Binary
input
2:
active
/ inactive
Inclusion in logical combination:
Sensor
1:
On
/ Off
System Limit 1
Sensor
2:
On
/ Off
System Limit 2
Math:
On
/ Off
System Limit 3
Binary
input
1:
On
/ Off
System Limit 4
Binary
input
2:
On
/ Off
System Limit 4
Logical combination:
Combined
OR
/ AND
Hysteresis
Hysteresis may be definined for the first 3 inputs via upper and lower limits. If the lower limit is set higher than
the upper limit, the hysteresis is inverted.
Inversion
Every input may be inverted.
Logical combination
The box must be ticked to include the input in the logical combination.
Sensor Alarm
To OR Sensor alarm with the System Limit result the box must be ticked.