GWA – 250
page 7 of 8
Operation and display elements
Function indicator
ON
green LED
ready status, power supply voltage on
A
red LED
output relay A switched on
B
red LED
output relay B switched on
Key coding switch
For setting the limit value from 0...99% of the configured signal range in steps of 1%.
At two-position-control
∆
s the limit value A represents the switching value and the limit value B the switching back value.
Configuration switches
The configuration of the input signal range as well as the relay functions is made per dip switches inside the housing.
Dangerous
voltage
Ensure a safe switching off the supply voltage when opening the housing
For configuration release the upper housing part at top and bottom side behind the terminals by using a screwdriver and pull
it out of the housing. Drop-in pin's avoid a complete pulling out. Following the respective dip switches can be set according to
the desired functions to ON or OFF.
Relay functions switcher block SB1
Switch 1, 2, 5, 6 (SB1)
Safety function
switching state S1
switching state S2
safety function
ON
OFF
channel B – minimum safety
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-position-control
∆
s
double limit value switch function
Input signal range GWA – 250
switcher block SB2
Switch 1 (SB2)
measuring range – only at GWA – 250
switch switching
state
ON
switching state OFF
1
input signal 4...20mA
input signal 0...10V / 0...20mA
Input signal range GWAP – 250
switcher block SB2 / SB3
Switch 2, 3 (SB2)
measuring range signal zero value – only at GWAP – 250
switching state S2
switching state S3
signal zero value
ON
ON
zero value – 50°C
OFF
ON
zero value 0°C
OFF
OFF
zero value + 50°C
Switch 1, 2, 3 (SB3)
measuring range signal range – only at GWAP – 250
switching state S1
switching state S2
switching state S3
signal range
ON ON ON 30
Kelvin
ON OFF ON 50
Kelvin
OFF OFF ON 100
Kelvin
OFF OFF OFF 600
Kelvin
Limit value channel B
2-digit
key coding switch
Function indicator
3 LED’s for indication
of operating states
Limit value channel A
2-digit
key coding switch
Configuration switch
inside the housing
