Power-Genex PPR Series Instruction Manual

Instruction Manual
Pneumatic-Pneumatic Positioner
1. Read all safety instructions in this manual carefully before using this product. All work
should be done by staff with the necessary training and experience.
2. An air filter regulator should be installed before the positioner.
1. Part Number System
Pressure
Pilot
Feedback Gauge Position Connection
PPR
― Valve
Shaft (SUP. Feedback Threads
Orifice
OUT)
Description Code Description
Feedback Shat: Connection
N: NAMUR shaft (direct mounting)
Threads:
A: Fork lever M6x40L
(pneumatic)
B: Fork lever other size on request
Pressure Dome Indicator:
Gauge: 1: 6 bar (90 psi)
2: 10 bar (150 psi)
High
Pilot Valve Temperature:
S: Standard
Orifice:
(actuator volume over 180 ㎤)
M: Small orifice (Φ1.0 or Φ0.7)
(actuator volume 90~180 ㎤)
Position Mounting
N: None (standard)
Feedback: Bracket:
O: Position transmitter
(4~20mA output signal)
L: 2 x SPDT limit switches
M: O+L
2. Specifications
PPR
Rotary Type (Cam Feedback)
Single
Input Signal 0.2~1.0 kgf/㎠ (3 ~ 15psi) (Note 1)
Air Supply Max. 7.0bar (100psi) free of oil, water, and moisture
Standard Stroke 60 ~ 100 ° (Note. 2)
Pneumatic Connections Rc 1/4 or NPT 1/4
Ambient Temperature -20 ~ +70℃
Pressure Gauge Stainless Steel
Output Characteristics Linear
Linearity Within ± 1.0 % F.S
Sensitivity Within ± 0.2 % F.S
Hysteresis Within ± 1.0 % F.S
Repeatability Within ± 0.5 % F.S
Air Consumption 5 LPM (Sup. 1.4kgf/㎠)
Flow Capacity 80 LPM (Sup. 1.4kgf/㎠)
Material Aluminum Die-cast Body
Weight 2.5 kg
Note: 1) It is adjustable to set 1/2 spilt range for 3-9psi input signal or 9-15psi input signal.
2) Stroke can be adjusted to 0~60° or 0~100°
3. Mounting and Selecting RA (reverse acting) or DA (direct
acting)
CAUTION: Keep assembly tightly closed during operation.
A. Mounting with NAMUR type
PPR Series
The PPR positioner basically has the NAMUR shaft which can be directly
mounted to the top pinion (VDI/VDE 3845) of the pneumatic rotary
actuator..
① Mount the NAMUR multi-size bracket to the pneumatic rotary actuator
with the enclosed bolts (4 x M5) as shown to the right.
② Mount the positioner to the bracket and insert the positioner feedback
shaft into the actuator top pinion (output shaft) as shown to the right.
③ Fix the positioner to the bracket with the enclosed bolts (4 x M6).
A multi-size bracket is assembled for 80x30x20 as a standard
factory setting. But the user can re-assemble it for 80x30x30, 130x30x20, and 130x30x30 according to
requirements as shown below.
Dome High Mounting
Indicator Temp Bracket
Code
3: Rc 1/4
4: NPT 1/4
N: Flat indicator (standard)
D: Dome indicator
B. Mounting with fork lever type
T: 70℃ (standard)
H: 120℃
Mount the PPR positioner to the actuator with DHCT
(without position feedback option)
bracket (80x30) as shown to the right. Be sure that the
85℃
feedback lever shaft "A" is placed in the orifice for the fork
(with position feedback option)
lever "B" and they are in alignment with a rotary actuator
output shaft.
N: None
R: Multi-size NAMUR bracket
C. Cam and Indicator Adjustment
for DIN VDI/VDE 3845
F: DHCT bracket 80x30
WARNING: When adjusting or replacing cams, be sure to shut off air supply to the PPR
for fork lever type
E: Multi-size NAMUR bracket
for fork lever type
RA (reverse acting) is a standard factory setting.
① Loosen a flange nut on a cam and reverse a cam for DA setting. Match the part of the cam with "0" marked on it with the
center of bearing as shown below. The span adjusting arm unit should now be aligned.
Double
Within ± 1.5 % F.S
Within ± 0.5 % F.S
② Tighten the flange nut of the cam after setting the cam.
③ After cam installation, proceed to adjust zero and span. Once this is complete, secure the indicator with the bolt (M6) to
the feedback shaft according to the actuator type (RA or DA) as shown below. The position for the indicator should be
arranged in the scale (0-90 degrees) shown on the cover.
positioner. Otherwise, the PPR positioner might react suddenly and cause
damage or injury.
[RA]
4. Air Connections
5. Internal View
Never move the seat adjuster. It was already set at the factory precisely.
[DA]