The Run-Time Screen - GE Becker 3.5M Series Instruction Manual

Run Time Screen
1. Current Loop Mode
The Run-Time Screen contains all the real-time feedback data for the DNGP. The diagram below shows a
screenshot of a DNGP Run-Time Screen. The boxes accompanying the diagram show all possible feedback
symbols and their meanings. In Current Loop Mode the DNGP accepts the standard 4-20 mA input and
energizes the solenoid to stroke the valve to the desired position. In this mode pressing the RIGHT button will
increase the input current signal and manually move the valve (the direction will depend on what positioner
action is selected). Pressing the LEFT button will decease the input current signal and manually move the
valve. Pressing the UP and DOWN buttons increase and decrease the deadband respectively to adjust the
sensitivity of the positioner. Pressing the ENTER button will take you to the Top Level Setup Screen (to be
further explained in another section).
CTRL = Using Digital Inputs
MAN = Under Manual Control
PGM = Under Program Control
= Full Range, Standard
= Split Range, Standard
= Full Range, Learned
♦ = Split Range, Learned
H = Halted
W = Waking (Solenoids on, Not Yet Moving
M = Moving
C = Coasting
28
Cycles 1,875
❚ ❚ ❚
Control
❚ ❚ ❚
Feedback
♦
Deadband 1.5%
Variable length bar indicating current
between 4-20 mA
Example:
= 4 mA
❚ ❚ ❙
= 12 mA
❚ ❚ ❚ ❚ ❚
= 20 mA
A = Automatic, Analog
N
a = Automatic, Digital
M = Manual, Analog
m = Manual
P = Program Control
S = Standby
- = Idle
d = Decreasing Current
D = Decreasing Current, Bypass Limit
i = Increasing Current
I = Increasing Current, Bypass Limit