26
7 MOUNTING INSTRUCTIONS
It is recommended that the drive be mounted vertically on a flat surface with adequate ventilation.
Leave enough room below the drive to allow for AC Line, motor connections, and any other wiring that is
required. Although the drive is designed for outdoor and washdown use, care should be taken to avoid
extreme hazardous locations where physical damage can occur. When mounting the drive in an enclosure,
the enclosure should be large enough to allow for proper heat dissipation so that the ambient tempera-
ture does not exceed 40 °C (104 °F) at full rating. See Figures 5 -7 on pages 15-17.
WARNING! Do not use this drive in an explosion-proof application.
8 RECOMMENDED HIGH VOLTAGE DIELECTRIC WITHSTAND TESTING (HI-POT TESTING)
Testing agencies such as UL, CSA, VDE, etc., usually require that equipment undergo a hi-pot test. In order
to prevent catastrophic damage to the drive which has been installed in the equipment, the following
procedure is recommended. A typical hi-pot test setup is shown in Figure 33 on page 27. All drives have
been factory hi-pot tested in accordance with UL requirements.
WARNING! All equipment AC Line inputs must be disconnected from the AC power.
8.1 Connect all equipment AC power input lines together and connect them to the H.V. lead of the hi-
pot tester. Connect the RETURN lead of the hi-pot tester to the frame on which the drive and other
auxiliary equipment are mounted.
8.2 The hi-pot tester must have an automatic ramp-up to the test voltage and an automatic ramp-
down to zero voltage.
Note:
If the hi-pot tester does not have automatic ramping, then the hi-pot output must be manually
increased to the test voltage and then manually reduced to zero. This procedure must be followed for
each machine to be tested. A suggested hi-pot tester is Slaughter Model 2550.
CAUTION! Instantly applying the hi-pot voltage will cause irreversible damage to the drive, which
will void the warranty.
9 RECONDITIONING THE BUS CAPACITORS
If this drive has been in storage for over one year it is necessary to recondition the power supply bus
capacitors. To recondition the bus capacitors, apply the AC Line, with the drive in the Stop Mode, for a
minimum of one hour. Not following this procedure will cause the bus capacitors to fail.
Figure 32 – Switching Frequency and GFCI Selection
(KBAC-217, 416 Series only)
8 kHz (Factory Setting)
12 kHz
Standard GFCI
Sensitive GFCI
Not Used
8K
J12
12K
G1
G2
Summary of Contents for KBAC Series
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