Limit-Value-Switching Outputs; 1/Minute - Datcon DT920 User Manual

Intrinsically safe tachometer
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Programmable parameters:
Display
Parameter name
P1
Number of teeth of the signal transmitter gear (divider)
P2
Number of teeth of the driven gear (multiplier)
P3
Number of teeth of the driving gear (divider)
P4
Place of the decimal point
Analogue
output
P5

1/minute)

L1 1
Limit 1 switching-on threshold
L1 -
Limit 1 switching-off threshold
L1 H
Limit 1 hysteresis
L2 1
Limit 2 switching-on threshold
L2 -
Limit 2 switching-off threshold
L2 H
Limit 2 hysteresis
L3 1
Limit 3 switching-on threshold
L3 -
Limit 3 switching-off threshold
L3 H
Limit 3 hysteresis
L4 1
Limit 4 switching-on threshold
L4 -
Limit 4 switching-off threshold
L4 H
Limit 4 hysteresis

5.3. Limit-value-switching outputs

The limit-value-switching outputs are available optionally. In program mode any limit-value out-
puts can be set, but we can use only the physically installed outputs, therefore, before connect-
ing the device, check always the data table of the apparatus to see whether the given option
has been installed.
The operation diagram of limit-value switches in the case of (L1 1) < (L1 -)
on
off
5
The operation diagram of limit-value switches in the case of (L1 1)  (L1 -)
on
off
5
See the chapter „Programming of the device" on the setting mode of the individual parameters.
8
scaling
(0mA=0
1/minute
7
10
12
1/ minute
7
10
12
Minimum
1/minute,
20mA=P5
(L1 1) = 5
(L1 -) = 12
(L1 H) = 2
(L1 1) = 12
(L1 -) = 5
(L1 H) = 2
Maximum
1
9999
1
9999
1
9999
0
4
1
9999
0
9999
0
9999
1
9999
0
9999
0
9999
1
9999
0
9999
0
9999
1
9999
0
9999
0
9999
1
9999

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