030712 M3-35
SERVO DRIVE MODULES
The U4 Head Servo Drive Module controls the
Knife Servo Motor. (Illustration 51) All of the
other Servo Drives, “U5” through “U12,” control
2 Servo Motors. The Motion Control Modules
sends “speed” and “directional” command
signals to each Servo Drive to tell the Servo
Drive how fast and in what direction to run
each of the Servo Motors. The Servo Drives
use the 650 VDC supplied by the DC Bus to
create a 3 phase AC voltage and frequency to
run and control the Servo Motors.
ADANGER!
The U3 Active Line Module, the Servo
Drives and the Servo Motors contain
dangerous voltages! Only Qualified
personnel should perform “Service” or
“Troubleshooting” on any of these
components! Always observe the
following precautions:
1. Follow your company's
Lockout/Tagout procedures when
performing any maintenance on
your Formax
®
Machine!
(Illustration 53)
2. The DC Bus voltage stored in the
Active Line Module and the Servo
Drives is in excess of 650 VDC.
There are storage capacitors
connected to the DC Bus that can
take 5 minutes to discharge after
the power is disconnected. Wait
for the voltage to drop to “zero”
volts before removing the DC Bus
covers or servicing any of the
modules. Refer to the “Servo
Drive Replacement” section for
more information on replacing a
Servo Drive.
ILLUSTRATION 51
Z1 FILTER
MODULE
U3
ACTIVE LINE
MODULE
MAIN POWER HANDLE
WITH LOCKOUT DEVICE
ILLUSTRATION 53
U4
SERVO DRIVE MODULE
ILLUSTRATION 52