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NORMA 4000/5000
Operators Manual
9-12
Process Interface - Technical Data
Eight Inputs (Analog/Digital)
Each differential input can be configured individually as an analog or a digital input.
Input Configured as Analog Input
Parameter Voltage
Range ±10 V nominal (saturation region approx. +2 %)
Maximum input voltage ±50 Vrms
Maximum common mode voltage to ground ±10 V (without additional error)
±25 V (without limitation by protective components)
Uncertainty of measurement ±(0.1 % of AVG+ 0.08 % of AVGR)
Input Configured as Digital Input
Parameter Frequency
Measuring signal TTL-compatible or AC (switching threshold approx.
+1.5 V ±0.5 V hysteresis)
Range 0.5 Hz to 500 kHz
[1]
Maximum input voltage ±50 Vrms
Maximum common mode voltage to ground ±25 V
Uncertainty of measurement ±0.025 % of AVG
[1] The number of pulses per revolution must be synchronized with the rotational speed of the motor in such a way that the maximum
measuring frequency is not exceeded. On the other hand, ensure that the resolution is sufficient to measure the frequency at low
motor speeds.
Four Digital Inputs for the Detection of the Sense of Rotation
Inputs for the detection of the sense of rotation are only used for motors and in
conjunction with the corresponding digital speed inputs.
Four Outputs (Analog)
Output voltage maximum ±10.3 V; maximum load 5 mA, short-circuit
protected, shared LO connection to ground potential
Allowable external voltage maximum 50 Vrms at HI input
Additional error ±(0.15 % of AVG + 0.05 % of FV), final value
FV = 10 V
Temperature coefficient <0.2 x fault limit/K
Output rate corresponds to current average time
Resolution approximate ±8000 counts for ±10 V, 1 count ≈ 1.25 mV
Rise time 10 to 90 %: approximately 10 ms
Response time to ±0.2 %: 25 ms
to ±1.0 %: approximate 20 ms
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