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5
WIRING INSTRUCTIONS
WARNING! Read Safety Warning, on page 6, before using the drive. Disconnect main
power before making connections to the drive. To avoid electric shock, be sure to properly
ground the drive. It is highly recommended that the SIAC-PS Signal Isolator with Power Supply
(Part No. 9600C) be installed when using signal following.
WARNING! HIGH VOLTAGE – REMOTE CONNECTIONS OF POTENTIOMETER, SWITCHES, ETC.,
WILL HAVE WIRING THAT IS AT LINE POTENTIAL. IT IS REQUIRED THAT THE SIGNAL ISOLATOR
BE INSTALLED FOR REMOTE CONNECTIONS.
Application Note – To avoid erratic operation, do not bundle the AC Line and motor wires with each
other or with wires from signal following, start/stop contacts, or any other signal wires. Also, do not
bundle motor wires from multiple drives in the same conduit. Use shielded cables on all signal wiring
over 12" (30 cm). The shield should be earth grounded on the drive side only. Wire the drive in
accordance with the National Electrical Code requirements and other local codes that may apply.
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 wired as a disconnect so that
each ungrounded conductor is opened. For fuse or circuit breaker selection, see Table 5. Also see
Section 11 on page 28.
To maintain the watertight integrity of the drive, be sure to use suitable liquidtight fittings and
wiring which are appropriate for the application. Model KBAC-24D contains three holes for standard
1/2" liquidtight fittings (not supplied) (one 1/2" watertight hole plug is provided). Models KBAC-27D,
29, 29 (1P), 45, 48 contain two holes for standard 1/2" liquidtight fittings (not supplied) and one hole
for standard 3/4" liquidtight fitting (not supplied) (one 1/2" watertight hole plug is provided).
The KBAC-217, 416 Series contain one hole for standard 1/2" liquidtight fittings (not supplied)
and two holes for standard 3/4" liquidtight fittings (not supplied) (one 1/2" watertight hole plug
is provided).
The drive is designed with a hinged case so that when the front cover is open, all wiring stays intact.
To open the cover, the four screws must be loosened so they are no longer engaged in the case
bottom. After mounting and wiring, close the cover making sure that the wires do not get caught
or crimped as the cover is closed. Tighten the four screws so that the gasket is slightly compressed.
The recommended tightening torque is 12 in-lbs (14 kg-cm). See Figures 5, 6 and 7 on pages 15-17
for the tightening sequence. Do not overtighten.
Terminal
Block
Description
AC Line Input and
TB1
Motor Wiring
Run/Fault Relay
TB2
Output Contacts
5.1 AC Line Input Connection – Wire the AC Line input to Terminal Block TB1.
GFCI Operation: Models KBAC-24D, 27, 29, 29 (1P), 45, 48 require custom software – contact
our Sales Department. The KBAC-217, 416 Series are jumper selectable (J12) for Standard
(G1) or Sensitive (G2) GFCIs.
Note: The rated AC Line voltage of the drive must match the actual AC Line input voltage. On Models
KBAC-24D, 27D, the setting of Jumper J1 must match the AC Line input voltage.
Table 5 – Terminal Block Wiring Information
Model
KBAC-24D
KBAC-27D, 29, 29 (1P), 45, 48
KBAC-24D, 27D, 29, 29 (1P), 45, 48
KBAC-217, 416 Series
Maximum Wire Size (Cu) Recommended Tightening Torque
AWG
mm
2
12
3.3
12
3.3
14
2.08
12
3.3
in-lbs
kg-cm
7
8
12
14
3.5
4
4.4
5
19
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