Roland ep-5 Service Manual download pdf (Page 21)

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15. Trouble shooting

16. Technical Data

Signal change has no effect on the actuator position.

— Check indicator and screw.

— Check air supply to positioner and tubing to the

actuator.

— Check input signal to positioner.

— Check diaphragm for damage or leakage.

— Check pilot valve function.

— Check cam for correct setting.

— Check I/P output

Note: All PMV-positioners are serialized. Please note

down, and provide the serial number when contacting

the factory for trouble shooting or service.

Signal change results in actuator running to end positions.

— Check coupling between positioner and actuator.

— Check cam position and locking screw.

— Check input signal.

Inaccurate positioning.

— Dirty or worn pilot valve.

— Defective or leaking diaphragm.

— Input signal fluctuates.

— Incorrect sizing of actuator.

— Valve/actuator "stiction".

— High valve/actuator breakaway torque.

— Loose cam.

P5 EP5

Input Signal 20-100 kPa/3-15 Psi (6-30 optional) 4-20 mA

Linearity ≤ 0,5%* ≤ 0,5%*

Hysteresis ≤ 0,75%* ≤ 0,5%*

Repeatability ≤ 0,5%* ≤ 0,5%*

Gain (pressure 600 kPa/87 Psi) 1 000 (kPa/kPa)

Min 66%/% ISA S75.13

Air consumption at Supply pressure:

0,2 MPa/29 Psi 5,4 nl/min 0.19 SCFM 6,1 nl/min 0.22 SCFM

0,4 MPa/58 Psi 12,3 nl/min 0.43 SCFM 13,6 nl/min 0.48 SCFM

0,6 MPa/87 Psi 20 nl/min 0.71 SCFM 22 nl/min 0.78 SCFM

0,8 MPa/116 Psi 27,8 nl/min 0.98 SCFM 30,5 nl/min 1.08 SCFM

1 MPa/145 Psi 35,7 nl/min 1.26 SCFM 39 nl/min 1.38 SCFM

Air delivery at Supply Pressure:

0,2 MPa/29 Psi 200 nl/min 6.9 SCFM

0,4 MPa/58 Psi 370 nl/min 12.8 SCFM

0,6 MPa/87 Psi 540 nl/min 18.8 SCFM

0,8 MPa/116 Psi 710 nl/min 24.7 SCFM

1 MPa/145 Psi 880 nl/min 30.6 SCFM

Supply Pressure Max 1 MPa/150 Psi 0,15-1 MPa/21,8-150 Psi

Temperature range -20°C to +85°C (-4°F to 185°F)

Connector threads 1/4" NPT or G

Gauge threads 1/8" NPT or G

Weight std. 1,1 kg/2.4 lbs 1,5 kg/3.4 lbs

Weight with gauges 1,3 kg/2.9 lbs 1,8 kg/3.9 lbs

Ingress protection IP 66/NEMA 4

* Per cent of full scale.

(The information in this manual is subject to change without notice.)

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Roland ep-5 Service Manual Page 21

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