7
DPF20 Frequency, rate, total or period counter
Instruction Manual
Digits
number of digits
6
led
7 segments led
color
red or green
digit height
14 mm
Reading
maximum reading
999999
minimum reading
-199999
decimal point
configurable X.X.X.X.X.X.
overrange / underrange
configurable to flash, reset or preset
(see
section 1.19.16)
display refresh
15 readings / second
memory retention
yes, retains reading value in case of pow
-
er loss
Signals accepted
NPN, PNP, Namur, pick-up, TTL, induc
-
tive, mechanical, quadrature, ...
Max. Vdc at
input
±30 Vdc
Input impedance
2K4 with pull-up or pull-down resistor
470K without pull resistor
Accuracy of the quartz
±0.01 %
Thermal drift
20 ppm / ºC
Excitation voltage
configurable
output voltage
+18 Vdc, +15 Vdc, +9 Vdc, +5 Vdc
maximum current
70 mA
protection
yes, current limited to 70 mA
Frequencies
counter modes
(see Table 3)
ratemeter modes
(see Table 4)
periodmeter modes
(see Table 5)
Power
power ‘H’
85 to 265 Vac/dc
power ‘L’
11 to 60 Vdc and 24/48 Vac
isolation*
2500 Veff with power ‘H’
1500 Veff with power ‘L’
*tested for 60
sec.
consumption
<1.5 W only meter
<4.0 W meter with options
Configuration
3 buttons front keypad
Front protection
IP65
Output and control options
relays, analog outputs, serial communi
-
cations
(see section 2)
Mechanical
mounting
panel
connections
plug-in screw terminal
housing material
ABS, polycarbonate (V0)
weight
<150 grams
front size
96 x 48 mm (1/8 DIN)
panel cut-out
92 x 44 mm
depth from panel
91 mm (including terminals)
Temperature
operation
from 0 to +50 ºC
storage
from -20 to +70 ºC
warm-up time
15 minutes
Counter
Mode
Frequency
Section
Counter
‘FAST’ mode active max. 250 KHz
1.19.2
normal mode
max. 9 KHz
1.19.2
C inhibition
max. 9 KHz
1.19.4
C control A/S
max. 9 KHz
1.19.5
Counter differential
max. 9 KHz
1.19.6
Counter
quadrature
mode x1
max. 17 KHz
1.19.3
mode x2
max. 16 KHz
1.19.3
mode x4
max. 11 KHz
1.19.3
Table 3 - Maximum input frequency for counter modes
Ratemeter
Mode
Frequency
Section
Ratemeter
normal mode
max. 500 KHz
1.19.7
‘SLOW’ mode ac
-
tive
max. 200 Hz
min. 1 mHz
1.19.7
Ratemeter
quadrature
mode x1
max. 17 KHz
1.19.8
mode x2
max. 16 KHz
1.19.8
mode x4
max. 11 KHz
1.19.8
Table 4 - Maximum and minimum input frequency for ratemeter modes
Periodmeter
Mode
Frequency
Section
Periodmeter
normal mode
max. 500 KHz
1.19.9
‘SLOW’ mode ac
-
tive
max. 200 Hz
min. 1 mHz
(1000 sec.)
1.19.9
Table 5 - Maximum and minimum input frequency for periodmeter modes
1.12
Mechanical dimensions (mm)
(in
)
1.11
Technical specifications
44
92
Panel
cut-out
16
8
75
96
48
(1.89)
(3.78)
(0.63)
(0.31)
(2.95)
(1.74)
(3.63)
