MATTHIESEN Magic Finger Bagger, Owner'S Manual

Page: 45 / 85

Section 1
General Information
Installation & Operation 2-3 MN605
Figure 2-1 Encoder Connections
A B
K
H
G J C
F E D
A
H
B
J
C
K
D
F
E
A
A
B
B
C
C
+5V
COMMON
Electrically
Isolated
Encoder
Color Codes for Optional
Baldor Encoder Cable
Standard Receptacle MS3112W12 − 10P
Standard Plug MS3116J12 − 10S
Thermostats The thermostat is a pilot circuit device used in a protective relay circuit. The thermostat
ratings are given in Table 2 − 3.
Table 2 − 3 Thermostat Ratings
Maximum Current Ratings for Thermostats (Normally Open or Closed Contacts)
Voltage 125VAC 250VAC 24VDC Continuous Current
All Voltages
Amperage 12A 8A 2A 2A
Initial Start-Up If driven equipment can be damaged by rotating in the wrong direction, uncouple the
motor from the load before checking for rotation.
If the direction of rotation needs to be corrected, disconnect the input power supply and
interchange the appropriate leads. Refer to the motor connection diagrams in Section 4 of
this manual.
1. The first start-up and running of the motor should be with the motor uncoupled
from the load.
2. Check the direction of rotation by momentarily applying power to the motor.
3. With the motor running, make sure it’s running smoothly without too much noise
or vibration. If either are present, shut down the motor immediately and find the
cause of the problem.
Blower Ventilation System
Before loading a force-ventilated motor, be sure that the blowers, cooling fans, or central
air supply systems are operating properly to supply cooling air to the motor. Air filters
should also be in place. If you energize the main fields with the motor at standstill, the
blowers or external cooling systems must be left on. This will prevent excessive heat
buildup that will decrease the life of the insulation.
When using field economy circuits to reduce the voltage to the main fields during
standstill, blowers do not need to be left on.
Blower motors should be checked for correct rotation. Don’t rely on feeling airflow from
the drive end of the motor. Look at the outline drawing or rotation arrow shown on the
blower housing. Refer to Figure 2-1.
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