Verification; Valves; Triggers; Encoder - Graco InvisiPac HM25 Operation, Repair, And Parts

Verification

Verification
This section verifies proper installation of the InvisiPac
pattern control system. For further assistance, see
Troubleshooting, page 45.

Valves

1. To verify glue can be dispensed, turn system ON
and attempt a purge on each installed valve, then
verify the valve is actuated (glue has been dis-
pensed from the appropriate valve).
2. To verify the electrical signal, disconnect the cable
from the solenoid and attempt a purge on each
installed valve and verify the signal is actuated (via
the LED on the valve connector).

Triggers

1. Navigate to Home, page 24.
2. Without product in front of the trigger, verify the trig-
ger indicator LED is OFF.
3. With product in front of the trigger, verify the trigger
indicator LED is ON.

Encoder

1. Navigate to Home, page 24.
2. Verify the line speed displayed in the current line
speed indicator is positive and varies for dif-
ferent line speeds.
3. If the line speed shown does not match the
known/expected value, see Calibration, page 40.

Run Up Control

1. Navigate to Home, page 24.
2. Turn the system ON and wait for the pattern control-
ler to become ACTIVE.
44
3. Run the line at various speeds and verify the appro-
priate run up output is displayed on the ADM. Verify
the run-up output pressure correctly follows.
4. If the percentage/pressure displayed does not
match the expected value, see Run Up Control,
page 44.

PLC Inputs

1. Navigate to Home, page 24.
2. Actuate the PLC input remotely and verify the
expected result is indicate din the PLC IO section in
the upper right corner of the display.
Action
Turn on line from PLC.
NOTE: on integrated sys-
tems, use InvisiPac PLC IO
to turn on/off InvisiPac. Pat-
tern controller will be in
standby until InvisiPac
becomes active.
Turn off line from PLC
Create safety fault (open
door)
Remove safety fault (close
door)
Select program from PLC
De-select program from PLC
Create an alarm.
NOTE: on integrated sys-
tems, turn off pattern control
box (will generate CAXP
alarm).
Clear the alarm.
NOTE: on integrated sys-
tems, turn on pattern control
box.
Icon Expected Out-
come
Program #
---
PLC detects
alarm
PLC alarm
clears
334784G