13
Version 1.1 (11/2011) en
Original language
9006 Hybrid Control for RollerDrive
Product information
Peer-to-peer communication
Even though all of the external inputs and outputs are NPN and PNP switchable,
the 9006 peer-to-peer communications always use NPN TTL logic.
This means that if a signal passing from board to board is high, it is not in
operation. If it is low (grounded), it is either performing its designated function or
sending the function signal to a nearby board.
All logic operates from a regulated and filtered 5 VDC power supply on the
9006. The 5 VDC power is delivered by a converter on the board
which converts the 24 VDC power that the board receives into 5 VDC for the
internal logic and peer-to-peer board communications (For communication cable
hardware see "Accessories", page 46).
Downstream peer-to-peer
6 Jog (I/O) [left]
5 Reverse (I/O)
4 Accumulation (I/O)
3 B sensor (OUT)
2 Ground
1 NPN (IN) [right]
Upstream peer-to-peer
1 Jog (I/O) [right]
2 Reverse (I/O)
3 Accumulation (I/O)
4 C sensor (IN)
5 NPN (IN)
6 Ground [left]
Hint
While different segments of a system may operate at different input voltages, the
DC ground for each system must be held at the same potential (0 VDC) to ensure
good operation and clean signals. In other words, when multiple power supplies
are used, the DC grounds must always be connected together.
Hint
When a peer-to-peer port is connected to another ZPA product, the NPN (in)
signal is pulled low except for the case where a 9006 is upstream.