User manual

PCI-1241/1242 User Manual 32
• G and H zones: When the servo-ON signal of the first axis
(A1_SERVON) is changed from 1 to 0, the open collector output stage
is conductive, allowing current to flow through it and enable driver to
servo-on. (For the definition of SERVO On please refer to the SERVO
MOTOR DRIVER manual).
• Zone I is the 24 VDC power for wiring on-site. Beware that if more
than two 24 V power sources are used they must have common ground.
In addition, the conducting wire should be thick enough to avoid
excessive voltage drops resulting in errors
.
Figure 3.11: Local I/O Wiring Example of Axis One (I)