14-5
Valco Cincinnati, Inc.
Section 14 - Troubleshooting
MC032 - MCP-25 Control
Problem
Possible Cause
Possible Solution
11. The front-
panel valve
LEDs are red.
11a.
The number of valve
outputs in the setup menu
exceed the number of
available outputs (see “Valve
Configuration”).
11a. Call Valco (see
Section 18—
Service
for information)
12. The glue
pressure does
not decrease
as the speed
of the parent
machine is
reduced.
12a.
Incorrect Vbypass setting in
setup menu
12b.
Incorrect Tbypass setting in
setup menu
12c.
Bypass valve not operating
properly
12d.
Obstructions in the bypass
valve's hoses.
12e.
Fluid regulators not
adjusted properly
12a. Increase the bypass valve's
threshhold (Vbypass)
12a. Increase the bypass valve's
activating duration (Tbypass).
12c. Ensure that the bypass valve is
operating correctly.
12d. Ensure that the bypass valve’s
hoses are free from obstructions.
12e. Ensure that fluid regulators are
adjusted properly.
13. The encoder
signal is not
accepted by
the control.
13a.
Direction-recognition
function improperly set up.
13a. Ensure that the direction-
recognition function in the setup
menu is correct. (If the direction-
recognition function is selected, the
encoder must have an A/B signal.)