Siemens SIPART PS2 Installationsanweisung - Seite 8

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INITIAL PS2 SETUP

Perform the following steps to set the transmission gear ratio switch,

apply instrument air and electrical power, and manipulate the three

setup pushbuttons to initially set up the PS2. Read the cautions on

page 3 before proceeding.

1. Loosen the four captive screws securing the PS2 cover and

remove the cover.

2. Find the specified valve travel and refer to Table 5 for the

transmission gear ratio switch setting: 33 or 90.

3. Refer to Figures 5 and 7 and to the top label on the PS2 to, if

necessary, change the transmission ratio switch position. Use a

small screwdriver to shift the position of the slide switch/bar.

4. Connect tubing from positioner output port, labeled "Y1" on

positioner cover, to actuator inlet.

5. Connect tubing for instrument supply air to positioner supply port

labeled "Pz". Apply air pressure.

!! Do not exceed maximum casing pressure shown on

actuator Warning label.

6. Connect a DC power source to positioner terminals; see Figure 5

for a typical electrical connection label. Electrical connections

vary with positioner model and options. Apply electrical power.

Transmission Gear Switch Settings

FIGURE 5 PS2 Transmission Gear Ratio Switch Location (PS2 Cover Removed)

TABLE 5, PS2 Transmission

Gear Ratio Switch Setting

Transmission

Bar

Stroke

Setting

0.71"

1.10"

1.50"

2.28"

Use a small

screwdriver to shift

the yellow

transmission gear

switch from 33 to

90.

Shift from 90 to 33

from other side of

PS2.