4-18 Input/ Output MN1903
4.5.4 Relayan d CAN power - X8Location Breakout module, connector X8
Pin Name Description
1CAN1V+ Powerinput for C AN1 (CANopen)
network (12-24V)
2CAN1GND Groundfor CAN1(CANopen) network
3CAN2V+ Powerinput for C AN2 (Baldor CAN)
network (12-24V)
4CAN2GND Groundfor C AN2 (Baldor CAN) network
5RelayNC Normallyclosed relay connec tion
6RelayNO Normallyopen relay connection
7RelayCOM Commonrelay c onnection
8USRV+ Customer power supply
9CGND Customer power supply ground
10 Shield Shieldc onnection
Description
Connection point for CAN power supply and relay contacts.
TheCAN open (CAN1) channel is isolated and requires a 12-24V, 60mA supply (pins 1 and 2).
Thesepins areconnected internally to pins 9 and 3 of connector X17 (see section 4.6. 1).
TheBaldor C AN channel (CAN2) is normally non-isolated and therefore does notneeda
powers upply.How ever,it maybeneces sary for some Baldor CAN nodes to derive a 12 -24V
supply from the CAN cable. For this reason, X8 provides a c onvenient connection point for the
supply (pins 3 and 4). Thesepins are connected internally to pins 5 and 4 of connector X 18
(seesection 4.6.2).
Therelay pins areisolatedf rom any internal circuits on the NextMove PCI. The r elay is
controlledby alatch,w hich is cleared when the NextMove PCI resets . Reset can occur due to
power-down, a watchdog error or when deliberately caused by the hos t PC. In normal
operationthe Relay NCcontact is connected to Relay COM. The relay is energizedinnor mal
useand is thefactory preset global error output channel. In the event of an error or power los s
tothe car d, the relay is de-energized and the Relay NO contact is connectedto Relay
common.
RelayNC
RelayCOM
Relay
MintMT
NextMovePCI Breakout
module
RelayNO
5
7
6
X8
100-pin
cable
Figure8 - Relay connections
1
10