Statox 503 Control Module
Page
38
of
46
Issue 10 / 2018
Control Module - Status diagram
Input from Sensor
or transmitter
System
Status
Current
output
Bus
signal
Display
LEDs
Relays
A1
A2
S
ON
A1
1)
A2
1)
SF
4-20 mA or
bridge voltage
Normal
4 – 20 mA
---
Measuring value OFF
OFF
OFF
ON
active
active active
4-20 mA or
bridge voltage
Alarm 1
4 - 20 mA
A1 Measuring value ON OFF
2)
OFF
ON passive active
2)
active
4-20 mA or
bridge voltage
Alarm 2
4 - 20 mA
A2 Measuring value OFF
2)
ON
OFF
ON active
2)
passive active
22 mA or
mV over range
Over Range
22 mA
2)
Full scale
flashing
2)
2)
OFF
ON
2)
2)
active
0 mA or
Error status
System failure
0 mA
SF
Error code
OFF
OFF
ON
ON
active
active passive
2 mA or
Service Mode
Service
Mode
3)
2 mA
1)
---
SERVICE MODE
or menu
OFF
OFF flashing ON
active
active active
1)
Ex-works setting, can be changed by user.
2)
Depending on actual alarm status.
3)
Priority ranking: Service Mode > SF > (A1 / A2 / Over range)
Common Alarm Module - Status diagram
Bus
input
System
status
Current
output
Display
LEDs
4)
Relays
4)
A1
A2
S
ON
A1
1)
A2
1)
SF
---
Normal
4 mA
COMMON
OK
OFF
OFF
OFF
ON
active
active
active
A1
Alarm 1
12 mA
COMMON
ALARM 1
ON
OFF
OFF
ON passive active
active
A2
Alarm 2
16 mA
COMMON
ALARM 2
OFF
ON
OFF
ON
active passive active
SF
System
failure
0 mA
COMMON
FAILURE
OFF
OFF
ON
ON
active
active passive
---
Service
4)
2 mA
1)
Menu
OFF
OFF flashing ON
active
active
active
1)
Ex-works setting, can be changed by user.
4)
The listed LED and relay status describes an isolated alarm event. In case of multiple alarm events
combinations are possible.
The priority ranking for display and current output is: Service Mode > A2 > A1 > SF
