Emerson Vilter VSS Installation, Operation And Service Manual

6 – 1
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
Section 6 • Troubleshooting
Table 6-1. Slide Valve Actuator Troubleshooting Guide (1 of 3)
Problem Reason Solution
The actuator cannot be calibrated.
Dirt or debris is blocking one
or both optocoupler slots.
Clean the optocoupler slots with a cot-
ton swab and rubbing alcohol.
The photo-chopper fence ex-
tends less than about half way
into the optocoupler slots.
Adjust the photo-chopper so that the
fence extends further into the optocou-
pler slots. Make sure the motor brake
operates freely and the photo-chopper
will not contact the optocouplers when
the shaft is pressed down.
The white calibrate wire in the
grey Turck cable is grounded.
Tape the end of the white wire in the
panel and make sure that it cannot
touch metal.
Dirt and/or condensation on
the position sensor boards are
causing it to malfunction.
Clean the boards with an electronics
cleaner or compressed air.
The calibrate button is stuck
down.
Try to free the stuck button.
The position sensor has failed. Replace the actuator.
Push button is being held
down for more that ¾ second
when going through the cali-
bration procedure.
Depress the button quickly and then let
go. Each ¾ second the button is held
down counts as another press.

Emerson Vilter VSS Specifications

General

Brand	Emerson
Model	Vilter VSS
Category	Air Compressor
Language	English