Roland ep-5 Service Manual download pdf (Page 9)

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5. Connections

Air connections are tapped for 1/4" G or NPT male connectors and are

clearly marked. Gauge ports are for 1/8" G or NPT.

We recommend use of tape, Loctite

577 or similar user preferred for

sealing.

Electrical connection on I/P unit accepts 1/2" NPT or PG 13,5 (M20)

cable gland.

Port I Input instrument pneumatic signal 20-100kPa (3-15 psi)

Port S Supply air, maximum 1 MPa (150 psi) Minimum 0,15

MPa (21 psi) for EP5

Port C1, C2 Actuator connections (0,2-1 MPa). C2 opening port.

OUT Exhaust air port. Do not block! Exhaust filter optional.

Port Ip Gauge port for pneumatic input signal.

Port I

Input electric signal (4-20 mA) (On the I/P unit.)

Port P Gauge port for I/P unit output pressure ( On the I/P unit)

Ports Ip, P, S, C1 and C2 are sealed with

plugs. To install gauges, unscrew plugs

and replace with gauges.

We recommend use of tape, Loctite

577

or similar user preferred for sealing.

Port OUT is for venting the unit. All air

from the positioner, actuator and

I/P unit is vented to atmosphere through

this port. Do not block this port. A high

flow silencer or an exhaust pipe can be

connected to this port to prevent foreign

objects from entering and blocking the

units exhaust. Connector in exhaust port

must not have less than 9 mm (3/8“)

orfice.

When using gases other than air for

supply – Please contact PMV.

On EP5 (P5 with I/P unit installed) I/P

unit is supplied with air from port S.

Port I is automaticly sealed off and

protected. No connection shall be made

to this port. See pages 13 and 14 for more

information.

For single acting operation plug port C1

for increasing signal to open valve. Plug

C2 for decreasing (reverse) signal to open

valve.

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Roland ep-5 Service Manual Page 9

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