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APEX615n Installation Guide
Switch 1 (SW 1)
RESERVED — #1, #2, #3: Set these three switches in the OFF position.
MOTOR POLE PAIR NUMBER — #4, #5: Set these two switches according to the
number of pole pairs your motor has. All APEX motors have two pole pairs (four poles),
except the APEX635 and APEX640, which have three pole pairs (six poles).
RESOLVER SPEED — #6: For a motor with a single speed resolver, turn #6 OFF.
(This switch should be OFF if you use an APEX motor, all of which have single-speed
resolvers.) For a motor with a two-speed resolver, turn #6 ON
.
CURRENT LOOP COMPENSATION — #7 & #8: These two switches control the
dynamics of the APEX615n's current feedback loop. Use these switches to match the drive's
performance to your particular motor's characteristics. Based on the motor's inductance, set the
switches according to the following table. The table also shows the switch setting for each
APEX motor.
MOTOR INDUCTANCE APEX MOTOR
#7
#8
25 mH to 40 mH
605, 606
OFF
OFF
5 mH to 15 mH
604, 610
OFF
ON
15 mH to 25 mH
620, 630, 635, 640
ON
OFF
Reserved
ON
ON
Switch 2 (SW 2)
CONTINUOUS CURRENT — #1, #2, #3: If the APEX615n goes into current
foldback, it reduces its output current down to the continuous current level set by these three
switches.
CONTINUOUS
MOTOR
DRIVE
CURRENT
#1
#2
#3
APEX604
APEX6152
9.0 amps
ON
OFF
ON
APEX605,606
APEX6152
7.8amps
ON
OFF
OFF
APEX610-640
APEX6154
20 amps
ON
ON
ON
PEAK CURRENT — #4, #5, #6: These three switches set the peak current that the
APEX615n will produce.
PEAK
MOTOR
DRIVE
CURRENT
#4
#5
#6
APEX604,605,606
APEX6152
24 amps
ON
ON
ON
APEX610-640
APEX6154
40 amps
ON
ON
ON
TIME CONSTANT — #7 & #8: These two switches set the motor thermal time
constant, which the foldback circuit uses to estimate motor behavior. Consult your motor
specifications to determine your motor's thermal time constant. The following table shows
switch settings for time constants of 10, 20, 30, and 40 minutes. The table also shows the
switch settings to use for APEX motors.
TIME CONSTANT
APEX MOTOR
#7
#8
10 Minutes
604,605, 606
OFF
OFF
20 Minutes
610
OFF
ON
30 Minutes
620, 630
ON
OFF
40 Minutes
635, 640
ON
ON
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