Page 52 of 68
Proton Products InteliSENS DG1130 Diameter Gauge Instruction Manual (Issue 1a)
PI
F
EEDBACK CONTROLLER
The PI feedback controller is an optional extra that must be ordered for installation during
manufacture; it cannot be retrofitted to the gauge.
The DG gauge can output an analogue control signal based on the proportional and integral value of
the difference between the measured diameter and the
∅
preset diameter. This signal can be used to
control an insulation extruder or capstan driver with
∅
preset as the target diameter of the product.
For PI feedback controller operation, the gauge requires the following prerequisites:
•
A calibrated, real time line speed measurement provided to the gauge either as an analogue
or pulse input signal.
•
∅
preset and
∅
core diameters set in the Basic
∅
Data page.
PI feedback controller connection
The PI feedback controller may be accessed through the “INTERFACE” connector.
Connector type: DB25 female (socket)
Pin Designation
Description
Notes
1
P0V
PI feedback controller ground reference Isolated from earth.
2
POUT
PI feedback controller output
14
PIN
PI feedback controller input
S
Shield
Ensure that the cable shield is
connected to this via the plug shield
connection.
PI feedback controller electrical specifications
•
The ground reference for the PI feedback controller input (PIN) and output (POUT) is isolated
from earth.
•
POUT is short circuit proof.
•
The PI feedback controller output (POUT) voltage range is limited to a user configurable
maximum of 50 % of the PI feedback controller input (PIN) voltage range.
Specification
Minimum Typical Maximum Units
PIN input voltage
-20
+20
V
PIN input voltage (absolute)
-50
+50
V
PIN input to earth voltage
-50
+50
V
PIN input impedance
20
kΩ
POUT output voltage
-10
+10
V
POUT output voltage (absolute forced)
-25
+25
V
POUT output to earth voltage
-50
+50
V
POUT output current
10
mA
POUT output impedance
10
Ω
