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Technical manual   

BA 0509 

Signal converter

GWA – 250 / GWAP-250 

Limit value switch 

 

for limit value supervision of 
electrical signals

 

Evaluable Signals 

 

Standard signals 0...10V / 0...20mA resp. 4...20mA 

 

Temperature resistor Pt100 from –50°C...+650°C 

 

 

Two limit value relays with different operation modes 

 

Safety function with minimum or maximum safety 

 

Double limit value function – two separated limit values  

 

Two-position-control function – a limit value with hysteresis 

 

Configurable switching delay 

 

Simple operation per key coding switch for adjusting the  
limit values from 0...99% of the signal range in steps of 1% 

 

Integrated measurand transducer supply 

 

Version with remote control available 

 

Wide range power supply from 20 to 253V AC and DC 

 

 

L a u t e r b a c h s t r .   5 7   –   8 4 3 0 7   E g g e n f e l d e n   –   G e r m a n y
T e l :   + 4 9   8 7 2 1 / 9 6 6 8 - 0   –   F a x :   + 4 9   8 7 2 1 / 9 6 6 8 - 3 0

i n f o @ a c s - c o n t r o l s y s t e m . d e

 

 

w w w . a c s - c o n t r o l s y s t e m . d e

Summary of Contents for GWA-250

Page 1: ...n two separated limit values Two position control function a limit value with hysteresis Configurable switching delay Simple operation per key coding switch for adjusting the limit values from 0 99 of the signal range in steps of 1 Integrated measurand transducer supply Version with remote control available Wide range power supply from 20 to 253V AC and DC L a u t e r b a c h s t r 5 7 8 4 3 0 7 E...

Page 2: ... display elements 7 Technical data 8 Order code GWA 250 U0 Version input signals 0 10V 0 20mA resp 4 20mA with on site control GWAS 250 U0 Version input signals 0 10V 0 20mA resp 4 20mA with remote control GWAP 250 U0 Version input signal Pt100 from 50 C 650 C with on site control GWAPS 250 U0 Version input signal Pt100 from 50 C 650 C with remote control ...

Page 3: ...a signal current of 10mA At standard signal 4 20mA the setting 50 equals a signal current of 8mA 50 of 16mA 4mA 12mA The connected signal device at the input can be powered by the integrated measurand transducer supply Version GWAP 250 GWAPS 250 The voltage drop at the connected temperature sensor Pt100 is compared by the evaluation circuit with the set limit value at the key coding switches in of...

Page 4: ...both output relays A and B the safety function can be set separately This can be carried out by two switches one per relay inside the device Two position control s The activation of the two position control is made by a switch inside the device Two position control with minimum safety Two position control with maximum safety The set limit value A equals the switching value and the limit value B eq...

Page 5: ...installation on a standard fastening rail acc to DIN EN 60715 TH 35 7 5 resp TH35 15 DIN EN 60715 TH 35 7 5 DIN EN 60715 TH35 15 The device must be installed protected against dust and humidity e g in control stations or in a suitable protection housing with a minimum protection classification IP55 acc to DIN EN 60529 The devices must be installed wheather and stroke protected ideally at places wi...

Page 6: ...f the inputs at the limit value switch GWA 250 current input maximum 400mA 30V voltage input 50V must not be transgressed The current input is equipped with a self resetting fuse At activation of the fuse the signal current wire must be disconnected for app 5 seconds If more than two limit values to a standard signal V mA should be evaluated at the limit value switch GWA 250 additional devices cou...

Page 7: ...OFF ON channel B maximum safety switching state S5 switching state S6 safety function ON OFF channel A minimum safety OFF ON channel A maximum safety Switch 3 7 SB1 switching delay switch switching state ON switching state OFF 3 channel B 4 seconds channel B 0 4 seconds 7 channel A 4 seconds channel A 0 4 seconds Switch 4 SB1 operation function switch switching state ON switching state OFF 4 two p...

Page 8: ...ng range Measurand transmitter supply overload and short circuit protected 3 wire sensor 21 2V at 20mA 20 7V at 27 5mA min 27 5mA max 25V 2 wire sensor 20 0V at 20mA 19 0V at 27 5mA min 27 5mA max 25V Signal input GWAP 250 Temperature resistor Pt100 3 wire 2 wire measuring resistance linear measuring current 2 x 0 515mA 10µA Measuring range Zero value 50 C 0 C 50 C range 30 Kelvin 50 Kelvin 100 Ke...

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