User Guide

ManualsBrandsKb Electronics ManualsOtherKBMG

FIG. 8 – AC LINE CONNECTION

FIG. 9 – ARMATURE CONNECTION

IV. MOUNTING.

Mount the KBMG-212D on a flat surface in an atmosphere free of moisture, metal chips,

and corrosion. See Mechanical Specifications, fig. 13, p. 21. A 5K ohm remote speed

potentiometer is provided with each control. Install potentiometer using hardware

provided. Be sure to install insulating disk between potentiometer and inside of front

panel.

Enclosure – When mounting the KBMG-212D in an enclosure, it must be large enough

to allow the proper heat dissipation. A 12"12"12" enclosure is suitable when the

control is not mounted on an auxiliary heatsink. A 12"12"24" enclosure is

appropriate at full rating (11.0 amps) when the control is mounted on an auxiliary

heatsink KB P/N 9861.

V. WIRING. Warning! Read Safety Warning before attempting to use this

control.

Warning! To avoid erratic operation do not bundle AC line and motor wires with

potentiometer, voltage following, enable, inhibit or other signal wiring. Use

shielded cables on all signal wiring over 12" (30 cm) – Do not ground shield.

TABLE 6 – TERMINAL BLOCK WIRING INFORMATION

Terminal Block

Designation

Connection

Designation

Supply Wire Gauge

Maximum

Tightening

Torque (in-lbs)

Minimum Maximum

TB1 Logic Conections 22 14 3.5

Wire control in accordance with National Electrical

Code requirements and other local codes that

apply. A “normal blo” 20 amp fuse or circuit

breaker should be used on each AC line conductor

that is not at ground potential (do not fuse neutral or

grounded conductors). (See section VI, p. 24 for

fuse information.) Wire control in accordance with

connection diagrams (see figures 8, 9, 10A, 10B, 11

and 14 on pages 16, 17, 19 and 22). A separate AC line

switch or contactor must be wired as a disconnect switch so

that contacts open each ungrounded conductor of the control.

See table 6 for terminal block wiring information.

A. AC Line – Connect AC Line to

terminals L1 and L2. (Be sure

jumpers J1A and J1B are set to

match the AC line voltage used.)

(See table 5, p. 10.)

B. Ground – Be sure to ground (earth)

control via green screw located

on chassis.

Do not ground any other terminals.

C. Motor Armature – Connect motor armature to terminals M1 (+) and M2 (–). (Be

sure jumper J3 is set to match motor voltage.) (See table 5, p. 10.)