ES0755 rev A 1/11
6
CAUTION!
NEVER push down on the primer handle! It gradually returns to the
down position by itself, and the corresponding pressure increase
can be seen on the pressure gauge.
NOTE:
Depending on the position of the cam that drives it, the lubrication
system may not activate until a few minutes after the machine is
started. However, if there is a problem with the system, an alarm
will stop the machine.
E
lectrical
C
onnections
NOTE
: The machine must have air pressure at the air gauge, or a “Low Air
Pressure” alarm will be present on power up.
CAUTION! Working with the electrical services required for the VMC can be extremely hazardous. The electrical
power must be off and steps must be taken to ensure that it will not be turned on while you are working with it. In
most cases this means turning off a circuit breaker in a panel and then locking the panel door. However, if your
connection is different or you are not sure how to do this, check with the appropriate personnel in your organiza-
tion or otherwise obtain the necessary help BEFORE you continue.
WARNING!
The electrical panel should be closed and the three latches on the door should be secured at all
times except during installation and service. At those times, only qualified electricians should have
access to the panel. When the main circuit breaker is on, there is high voltage throughout the electri-
cal panel (including the circuit boards and logic circuits) and some components operate at high
temperatures. Therefore, extreme caution is required
Main
Circuit
Breaker
Ground
Line
L1
L2 L3
1
. Hook up the three power lines to the terminals on top of the main switch at upper right of electri-
cal panel and the separate ground line to the ground bus to the left of the terminals.
NOTE:
Make sure that the service wires actually go into the terminal-block
clamps. (It is easy to miss the clamp and tighten the screw. The
connection looks fine but the machine runs intermittently or has
other problems, such as servo overloads.) To check, simply pull on
the wires after the screws are tightened.
2
. After the line voltage is connected to the machine, make sure that main circuit breaker (at top-
right of rear cabinet) is OFF (rotate the shaft that connects to the breaker counterclockwise until
it snaps OFF). Turn ON the power at the source. Using an accurate digital voltmeter and appro
-
priate safety procedures, measure the voltage between all three pair phases at the main circuit
breaker and write down the readings. The voltage must be between 195 and 260 volts (360 and
480 volts for high voltage option).
