4-4 Inversing Circuit Board Logic
WARNING:
Before start-up, ensure that all connections are correct,
or damage to the TOUGH GUN Reamer will occur.
The TOUGH GUN Reamer is factory set for Sourcing inputs and
outputs.
DEFINITIONS:
l
Sinking = signal from PLC / controller is LOW (0 VDC)
l
Sourcing = signal from PLC / controller is HIGH (+24 VDC)
(see section 7-2 Electrical Schematic on page 30).
The control logic requirement for some installations may require
an inverse of the logic provided.
To switch from Sourcing to Sinking:
The switches located inside the rear access door must be
accessed. See section 4-2 Accessing Electrical and Pneumatic
Controls on page 13 for directions.
1. Disconnect from power supply.
2. Move the switches to the desired positions (SRC or SNK).
3. Connect power back into the reamer.
IMPORTANT NOTE:
Although the circuit board is protected,
Tregaskiss suggests disconnecting the power before moving the
switches.
The switches are located on the top left hand corner of the
circuit board
(
SRC
= Sourcing,
SNK
= Sinking)
l
Sprayer signal
can be set to either
SRC
or
SNK
by moving
the switch (
SW1 - Option
) to the position indicated in Figure
l
Cycle Start signal
can be set to either
SRC
or
SNK
by moving
the switch (
SW2 - Start
) to the position indicated in Figure 4-
B.
l
Reamer Home signal
can be set to either
SRC
or
SNK
by
moving the switch (
SW3 - Unclamped
) to the position
indicated in Figure 4-B.
Figure 4-B
OM-TT3-1.4
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