Flowserve 3400IQ Digital Positioner - Manual (Page 7)


Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06
flowserve.com
All of the edges around the vend assembly should be sealed similar to the picture below.
Removeable
sealing tape
The sealing tape and desiccant should be removed when instrument air is permanently applied to the
positioner.
3.3 Pre-installation Inspection
If a valve control package has been stored for more than one year, inspect one actuator by disas-
sembling it per the appropriate Installation, Operation, and Maintenance Instructions (IOM) prior to
valve installation. If O-rings are out-of-round, deteriorated, or both, they must be replaced and the
actuator rebuilt. All actuators must then be disassembled and inspected. If the actuator O-rings are
replaced, complete the following steps:
1. Replace the pressure-balance plug O-rings.
2. Inspect the solenoid and positioner soft goods and replace as necessary.
4 Logix 3400IQ Positioner Overview
The Logix 3400IQ digital positioner is a two-wire F
oundation
Fieldbus compliant digital valve
positioner. The positioner is configurable through the local user interface. The Logix 3400IQ utilizes
the FF protocol to allow two-way remote communications with the positioner. The Logix 3400IQ
positioner can control both double- and single-acting actuators with linear or rotary mountings. The
positioner is completely powered by the FF signal. Start up voltage must be from a FF power supply
source.