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4.5.4 Relay and CAN power - X8
The CANopen (CAN1) channel is isolated and requires a 12-24V, 60mA supply (pins 1 and 2).
These pins are connected internally to pins 9 and 3 of connector X17 (see section 4.6.1).
The Baldor CAN channel (CAN2) is normally non-isolated and therefore does not need a
power supply. However, it may be necessary for some Baldor CAN nodes to derive a 12-24V
supply from the CAN cable. For this reason, X8 provides a convenient connection point for the
supply (pins 3 and 4). These pins are connected internally to pins 5 and 4 of connector X18
(see section 4.6.2).
The relay pins are isolated from any internal circuits on the NextMove PCI. The relay is
controlled by a latch, which is cleared when the NextMove PCI resets. Reset can occur due to
power-down, a watchdog error or when deliberately caused by the host PC. In normal
operation the Relay NC contact is connected to Relay COM. The relay is energized in normal
use and is the factory preset global error output channel. In the event of an error or power loss
to the card, the relay is de-energized and the Relay NO contact is connected to Relay
common.
4-18 Input / Output
Location Breakout module, connector X8
10
Pin Name
1 CAN1 V+
2 CAN1 GND Ground for CAN1 (CANopen) network
3 CAN2 V+
1
4 CAN2 GND Ground for CAN2 (Baldor CAN) network
5 Relay NC
6 Relay NO
7 Relay COM Common relay connection
8 USR V+
9 CGND
10 Shield
Description
Connection point for CAN power supply and relay contacts.
NextMove PCI
Relay
MintMT
Figure 8 - Relay connections
Description
Power input for CAN1 (CANopen)
network (12-24V)
Power input for CAN2 (Baldor CAN)
network (12-24V)
Normally closed relay connection
Normally open relay connection
Customer power supply
Customer power supply ground
Shield connection
Breakout
module
100-pin
cable
X8
5
Relay NC
6
Relay NO
7
Relay COM
MN1903
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