Shadow VI User Manual
1107200
Installation and Checkout
Chapter 2
page 57
though Shadow signals a stop, the PLC does not stop the press. This situation must not be
allowed to occur.
If the control is connected to a PLC instead of directly to the machinery, then the PLC must
be able to transfer Shadow's control reliability capability to the press stop circuit. If this
capability is overridden or if the PLC cannot detect a failure of its own components, much of
Shadow's protection features are lost even though Shadow is working properly. This is why it
is essential that you do not override Shadow's control reliability features when using Shadow
with a PLC. After completing this step, proceed to the next section.
Shadow allows you to test your PLC's input modules, adding another level of safety to your
operation. Wire the PLC to the transmitter interrupt at pins #19 and #20 on TB4 auxiliary
connector. (Be sure to remove the factory-installed jumper at pins #19 and #20.) The PLC
can momentarily interrupt the transmitter's function (#19, #20 at TB4), watch the redundant
output relays open, and then resume the transmitter's operation and watch the relays close. If
the input modules do not respond properly and simultaneously, the PLC can inhibit the press
from further operation until the PLC inputs have been checked out.
Optional Wiring
This section provides instructions to wire various optional Shadow VI features, including
remote reset, indicator outputs, and MPCE monitor input.
Indicator Outputs
DANGER
!
INDICATOR OUTPUTS NOT SUITABLE FOR SAFETY USE
•
DO NOT use the indicator outputs listed in the specifications table for personnel protection.
They cannot be used to stop the machinery.
•
Use only the safety outputs for personnel protection.
Failure to comply with these instructions will result in death or serious injury.
You can wire up to 4 indicator outputs to
customer-supplied
solid-state relays.
These outputs, which are open collectors to ground, allow you to view Shadow's operating
status at a remote location by mimicking the indicators at the Shadow control. Connect the
positive input wire from your 12VDC solid-state relay to pin #5 ("V out") at TB5 connector
inside the control. Wire pins #1 (Green), #2 (Amber), #3 (Red), and #4 (Yellow)
as needed
according to Figure 5 at the end of the manual.
Summary of Contents for Shadow VI
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