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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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