KB Electronics KBIC-240DS - Manual (Page 23)

23
FIGURE 12. INTERNAL SENSING
Internal Sensing Circuit -
Wire the KBAP® in accordance with this wiring diagram.
9.6 Optional Overload Protection with KBAP-240D (Part No. 9106)
The KBAP-240D ® is a multipurpose DC
Current Sensing Relay and Overload
Protector. It is specifically designed for use
with DC motors and speed controls from 1/8
- 3 HP. KBAP-240D
® operates by sensing
current in the armature circuit. When the
preset level is reached, the output relay
(RY1) trips. An adjustable time delay (0.2 -
15 secs.) is incorporated, which eliminates
nuisance tripping. Manual or automatic reset
is provided at the user's option along with a
LED, which indicates when the preset
current level has been reached. When an
overload occurs, the KBAP-240D
® can be
used to shut the system down, sound an
alarm, or initiate corrective action before
damage occurs. Refer to Figure 12.
10 OPTIONAL ACCESSORIES
•
Auxiliary Heat Sink (Part No. 9861): Doubles the horsepower rating of the control.
•
Barrier Terminal Accessory Kit (Part No. 9863): When used with the Auxiliary Heat Sink, it converts the
quick-connect terminals of the control to a barrier terminal block.
•
Barrier Terminal Board (Part No. 9884): Converts the quick-connect terminals of the control to a barrier
terminal block. Contains PC board mounted line and armature fuse holders (fuses supplied separately).
Plugs onto the quick-connect terminals of the control.
•
SI-5 Signal Isolator (Part No. 9443): Provides isolation between non-isolated signal sources and the
control. Plugs onto the quick-connect terminals of the control.
•
Dial Plate & Knob Kit (Part No. 9832): Provides indication of the Main Speed Potentiometer position
(0 – 100 %).
•
AC Line & Armature Fuse Kit (Part No. 9849): Provides fusing for the AC line input and armature.
Includes wired fuse holders and mounting screws. Fuses supplied separately.