KB Electronics KBWA-23D - Manual (Page 24)

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9 RECONDITIONING THE BUS CAPACITORS
This drive contains bus capacitors which must be reconditioned if the drive has been
in storage for over one year. To recondition the capacitors, apply the AC Line for a
minimum of one hour, with the Main Speed Potentiometer set to zero, or set the
Forward-Stop-Reverse Switch, if installed, to the Stop position.
10 ELECTRICAL
CONNECTIONS
The drive is designed with a PC board mounted terminal block to facilitate wring of the
AC Line input, Motor, and Ground connections, as shown in Figure 2, on page 8. The
removable cover allows access to the terminal block, jumpers, and trimpots for wiring
and setting up the drive. For Terminal Block TB1 Wire and Tightening Torque
Specifications, see Table 4, on page 25.
The drive is designed with two 0.875" (22.2 mm) holes for standard 3/4" fittings for
wiring the AC Line input, motor and ground.
Note: Wire the control in accordance with the National Electrical Code requirements
and other local codes that may apply to the application.
WARNING! HIGH VOLTAGE! Read Safety Warning, on page 2, before
using the drive. Disconnect the main power before making connections to the
drive. To avoid electric shock, be sure to properly ground the drive.
Application Notes: 1. To avoid erratic operation, do not bundle AC Line input and
motor wires with each other. Also, do not bundle motor wires from multiple drives in
the same conduit. 2. Be sure to properly fuse each AC Line conductor that is not at
ground potential. Do not fuse neutral or grounded conductors. A separate AC Line
switch or contactor must be used as a disconnect so that each ungrounded conductor
is opened. For fuse or circuit breaker selection, see Table 1, on page 9. Also see
Section 10.3, on page 26.