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Unread 20-02-2016, 16:10
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Bob Steele Bob Steele is offline
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First of all...
R37 All circuits, with the exceptions of those listed in R42 (RoboRio Power) and R44,(VRM Power) must connect to, and have power
sourced solely by, a single protected 12VDC WAGO connector pair (i.e. the Load Terminals, as
shown in Figure 4-10) not the M6 cap screws.

So I don't think you can connect two SPIKEs to the same PDP circuit.
You can ask Q and A if you wish.

Secondly, if you do find out it is legal:

R45 Only one wire shall be connected to each WAGO connector on the PDP.
If multi-point distribution of circuit power is needed (e.g. to provide
power to multiple PCMs and/or VRMs from one 20A circuit), then all
incoming wires may be appropriately spliced into the main lead (e.g.
using an insulated terminal block, crimped splice or soldered wire
splice), and the single main lead inserted into the WAGO connector to
power the circuit.

If you are using a 40A breaker to protect a circuit... all of the wiring would have to be a minimum of 12 gauge wire.

R49 All circuits shall be wired with appropriately sized insulated wire:
Table 4-3: Legal Wire Size
Application Minimum Wire Size
31 – 40A protected circuit 12 AWG (2.052mm)
21 – 30A protected circuit 14 AWG (1.628mm)
6 – 20A protected circuit
Between the PDP dedicated terminals and the VRM or PCM 18 AWG (1.024mm)
Compressor outputs from the PCM
Between the PDP and the roboRIO
VRM 2A circuits 22 AWG (0.645mm)
≤5A protected circuit
roboRIO PWM port outputs 26 AWG (0.404mm)
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