Emerson EIM 2000 Series - Section 4: Geared Rotary Limit Switch Setting Instructions; Before Making any Switch Setting; To Set Open Limit Switch (LSO)

10
August 2017
Installation and Maintenance Manual
E2K-401-0817 Rev. 1
Geared Rotary Limit Switch Setting Instructions
Section 4: Geared Rotary Limit Switch
Setting Instructions
4.1 Before making any switch setting:
1. Move valve to mid-position using handwheel.
2. Phase the power (motor) voltage and make sure that open contactor moves valve
Open and Close contactor moves valve Closed.
DANGER:
Improper power voltage phasing eliminates protection of both geared limit switch and
torque switch, risking valve damage.
4.2 To set Open Limit Switch (LSO)
1. Open valve — During handwheel operation note direction of rotation of LSO
Adjusting Shaft (1) Fig. 7. After the valve is fully Open, Close it three handwheel
turns to allow for coast.
Figure 7
(1)
Section 4: Geared Rotary Limit Switch Setting Instructions