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9
Technical Characteristics
7
Section 7 - Technical characteristics
Inputs
2 programmable inputs for standard pulse generator connection. Normally, the auxiliary supply and
trigger level follow the sensor type, but these can be programmed to other values.
At contact input, the 50 Hz filter should be applied. The DRST-FR is protected against polarity reversal
on input and supply.
Section 8 - Analogue output
The current and voltage signals are galvanically separated from the supply and the inputs.
The analogue current and voltage output can be scaled acc. to your choice in relation to the digital
input. Max. zero offset is 50% of selected measurement range. Programmable response time.
Short-circuit-protected output.
When both current and voltage signals are used simultaneously, the mA loop to ground must pass
through the internal shunt.
Standard voltage output (pin 12) is obtained by leading the current signal (pin 13) through an internal
shunt resistor (pin 12). At voltage signals in the ranges 0...1 VDC, a 50 Ω shunt (JP1) is applied; in the
ranges 0...10 VDC, a 500 Ω shunt (JP2) is applied.
Section 9 - Digital output(s)
The action on the outputs can be inverted, and the hysteresis can be set acc. to your specifications.
At powear up, shifts on the outputs can be delayed for up to 999 s.
NPN and PNP outputs for external relay, electromechanical counter, PLC input, or equivalent load.
The outputs are current-limited by way of PTC resistors.
Section 10 - Relay outputs
The DRST-FR can be delivered with 2 relay outputs that are programmed individual ly.
Section 11 - Status indication
The DRST-FR is equipped with 5 front LEDs.
f1 and f2 in:
Indicates an active input (non-active at NPN input).
Dig. out. 1 and 2:
Indicates active output.
Error:
Programmable by use of OMeset to indicate sensor errors.
Summary of Contents for DRST-FR
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Page 15: ...Block Diagram DRST FR A 16 15 Section 16 Block Diagram DRST FR A ...
Page 16: ...NOTES 16 ...