Technical Information
DP7XX Series PLUS+1® Mobile Machine Displays
L1315553
• Rev DA • Dec 2013
10
Multifunction
Frequency Input Normal Range (PPU)
Description
Unit
Minimum
Maximum
Comment
Range
Hz
0
10000
In steps of 1 Hz
Range (phase and quad)
Hz
0
5000
When measuring phase or
quadrature counts
Low threshold voltage
V
1.1
2.6
—
High threshold voltage
V
2.2
4.4
—
Input impedance
kΩ
233 ± 3
To 0 V
Input impedance with pull-down
kΩ
14.1 ± 0.3
To 0 V
Input impedance with pull-up
kΩ
14.1 ± 0.3
To 5 V
Input impedance with pull-up/down
kΩ
7.27 ± 0.2
To 2.5 V
Resistance Input
Description
Unit
Minimum
Maximum
Comment
Range
Ω
0
10000
In steps of 1 Ω
Resolution
1
@ 0 Ω
2
@ 1 kΩ
42
@ 10 kΩ
Source current
m
0
4
—
4–20 mA Input
Description
Unit
Minimum
Maximum
Comment
Range
mA
0
50
—
Resolution
μA
22
—
Worst case error
mA
±(0.2 + I*3%)
—
Input impedance
Ω
100 ± 2
To 0 V
Shut-off current
mA
54
—
The displays do not have a Real Time Operating System (RTOS). Because of this the display should not
be used as the master control for any type of safety critical control, or closed loop control system.
Frequency inputs are managed by the operating system. Because of this it should be avoided to use
these inputs for any type of Safety Critical closed loop control as the accuracy maybe affected by
processor load. They should only be used for non-safety critical related functions.
Frequency Input Low Range (PPU)
Description
Unit
Minimum
Maximum
Comment
Range
Hz
0
10000
In steps of 1 Hz
Sensitivity
mVpp
1000
—
Sinus peak-to-peak
Low threshold voltage
mV
75
200
—
High threshold voltage
mV
150
350
—
Input impedance
kΩ
233 ± 3
To 0 V
Input impedance with pull-down
kΩ
14.1 ± 0.3
To 0 V
Input impedance with pull-up
kΩ
14.1 ± 0.3
To 5 V
Input impedance with pull-up/down
kΩ
7.27 ± 0.2
To 2.5 V
