7 ND90 71 en
5
side of the actuator. The increasing pressure will move the
diaphragm piston. The actuator and feedback shaft rotate
clockwise. The position sensor (α) measures the rotation for
the μC. The μC using control algorithm modulates the PR-
current from the steady state value until a new position of
the actuator according to the input signal is reached.
2.3
Markings
The valve controller is equipped with an identification plate
(Fig. 2).
Identification plate markings include:
Type designation of the valve controller
Revision number
Enclosure class
Input signal (voltage range)
Input resistance
Maximum supply voltage
Operational temperature
Supply pressure range
Contact details of the manufacturer
CE mark
Manufacturing serial number TTYYWWNNNN*)
*) Manufacturing serial number explained:
TT= device and factory sign
YY= year of manufacturing
WW = week of manufacturing
NNNN = consecutive number
Example: PH13011234 = controller, year 2013, week 1, con-
secutive number 1234.
Note, that in ND9200 and ND9300 models there may have
two identification plates if there is double approval (type
ND92_XE1 or ND93_XE1).
When device is installed to Ed i or Ex d area, remove identifi-
cation plate which is not valid.
If device is installed to Ex d area, it can't be installed to Ex i
area even that identification plate would be changed.
See Chapter 15 for all ID plates.
2.4
Technical specifications
ND9000 AND ND7000 INTELLIGENT VALVE
CONTROLLER
General
Either loop powered (ND9000H and ND7000H) or
bus powered (ND9000F and ND9000P),
no external power supply required.
Suitable for rotary and sliding-stem valves.
Actuator connections in accordance with VDI/VDE 3845
and IEC 60534-6 standards.
Action:
Double or single acting
Travel range:
Linear; 10–120 mm with standard IEC parts.
Larger strokes possible with suitable kits
Rotary; 45–95°.
Measurement range 110° with freely
rotating feedback shaft.
Environmental Influence
Standard temperature range:
-40° to +85 °C / -40° to +185 °F
Low temperature option:
-53° to +85 °C / -64° to +185 °F
Influence of temperature on valve position:
< 0.5 % / 10 °C
Influence of vibration on valve position:
< 1 % under 2g 5–150 Hz,
1g 150–300 Hz, 0.5g 300–2000 Hz
Enclosure
ND9100 and ND7100
Material:
Anodised aluminium alloy and
polymer composite
Protection class:
IP66, NEMA 4X
Pneumatic ports:
G 1/4
Electrical connection: max 2.5 mm
2
Cable gland thread: M20 x 1.5 / 1/2 NPT (U)
Weight:
1.8 kg / 4.0 lb
with extension housing (limit switches) plus 0.8 kg / 1.8 lb
Mechanical and digital position indicator visible through
the main cover
ND9200 and ND7200
Material:
Anodised aluminium alloy and
tempered glass
Protection class:
IP66, NEMA 4X
Pneumatic ports:
1/4 NPT
Electrical connection: max. 2.5 mm
2
Cable gland thread: M20 x 1.5, except 1/2 NPT (E2)
Weight:
3.4 kg / 7.5 lb
with extension housing (limit switches) plus 1.0 kg / 2.2 lb
Mechanical and digital position indicator visible through
the main cover (not applicable to ND9200_E2)
Fig. 1
The principle of operation
Fig. 2
Example of the identification plate
