GE Industrial Solutions AF-300C AC Drive - Manual (Page 35)

Motor Connectlons (See
WARNING-BURNANDSHOCKHAZARD:
Shut off the power supply before making the out-
put connections.
If the power supply is on, a
voltage may be present between the output termi-
nals even though the lnverter Is stopped.
Connect the motor wires to the U, V, and
W terminals of the Main Circuit Terminal Block as
shown in A). 2for de-
scription of all terminals and TABLE 3 for wire
sizing.)
NOTE: Motor rotate counterclockwise
viewed from the load side when connected normally.
If the motor rotates in reverse direction, interchange
any two of the V, or W terminal connections.
2. If contactors are connected as shown in Figure
B), connect an interlock to prevent clos-
ing both contactors (MC-1 and MC-2) at the same
time. A contactor on the output for any other
purpose must operate such that the contactor
closes before the inverter is started and opens
after the inverter stops.
BRAKING UNIT AND BRAKING
RESISTOR CONNECTIONS
NOTE: Braking Resistor must be used in combina-
tion with braking unit. The number of braking units
and braking resistors varies per the horsepower of the
inverter and the braking requirements of the the appli-
cation (see Figure 4-6 for wiring).
CAUTION: Alwavs match terminals and be-
tween the inverter and the brakina unit.
1. Remove the jumper between the THR and CM
terminals of the inverter (installed at the factory).
2. Connect the thermal contacts in series (to THR
and CM) so that both the braking unit and braking
resistor will be OFF should overheating occur.
-- Connect braking unit so that thermal contacts
can be made for terminals 1 and 2 (of braking
unit) to terminals THF? and CM (of the inverter)
respectively.
3. When two units are used, set Switch SW1
on the printed circuit board of the braking unit in
the 1-2 position (set in 2-3 position at factory).
CAUTION: Do not connect anv capacitors in the
wires. The capacitors and inverter will over-
heat and be due to harmonics.
RF-300C
OUTPUT OUTPUT
View A
NOTE :
BOTH STRRTERS FROM
CROSS INTERLOCKING IR TO
T H E T I M .
L2 v w
L I N
0 0
K - 1 M C - 2
. .
CIRCUIT -- -- --
.__._
-- -- --
BREAKER
CUSTOMER SUPPLIED
3 PHRSE POWER
View B
Figure 4-5. OUTPUT WIRING CONNECTIONS
4-3