KB Electronics Anti Plug Reversing Module (APRM-PC) w/Switch Kit (for Model 240D Only) - Manual (Page 8)

i. SAFETY WARNING! — PLEASE READ CAREFULLY
This product should be installed and serviced by a qualified technician, electrician or electrical maintenance person familiar with
its operation and the hazards involved. Proper installation, which includes wiring, mounting in proper enclosure, fusing or other
overcurrent protection and grounding, can reduce the chance of electric shocks, fires or explosions in this product or products used with
this product, such as electric motors, switches, coils, solenoids and/or relays. Eye protection must be worn and insulated adjustment
tools must be used when working with control under power. This product is constructed of materials (plastics, metals, carbon, silicon,
etc.) which may be a potential hazard. Proper shielding, grounding and filtering of this product can reduce the emission of radio
frequency interference (RFI) which may adversely affect sensitive electronic equipment. If information is required on this product, contact
our factory. It is the responsibility of the equipment manufacturer and individual installer to supply this safety warning to the ultimate user
of this product. (SW effective 11/92)
This control contains Start/Stop and Inhibit circuits that can be used to start and stop the control. However, these circuits are never
to be used as safety disconnects since they are not fail-safe. Use only the AC line for this purpose.
The input circuits of this control (potentiometer, Start/Stop, Inhibit) are not isolated from AC line. Be sure to follow all instructions
carefully. Fire and/or electrocution can result due to improper use of this product.
This product complies with all CE directives pertinent at the time of manufacture. Contact factory for detailed
installation instructions and Declaration of Conformity.
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TABLE 1 – APRM ® OPERATION
Switch Position Switch Connection
Output Polarity
A1 A2
Forward (FWD) S1, S2 + -
Brake (BRK) None (Center off)* 0 0
Reverse (REV) S2, S3 - +
*Note: If no connection is made to S1, S2 and S3, the APRM ® is in the brake
mode which will rapidly stop the motor.
I. OPERATION.
The APRM
® -PC provides anti-plug instant reverse and solid
state dynamic braking. It has been specifically designed for
installation into the KBPC-240D speed control. The patented
circuitry senses armature voltage and permits armature
switching to take place only when current levels are near zero.
This eliminates contact arcing normally associated with relay
reversing circuits.
Braking is achieved via an electronic circuit utilizing an SCR
and brake resistor. An LED indicates when the APRM
®
is in
the brake mode. Operation is made via a SPDT switch with
center off.
The unit installs easily into the inside cover of the KBPC control. Wiring is made via quick-connect terminals.
II. SET UP.
Be sure the Jumpers J1 and J2 on the APRM
®
are both set to the proper AC line input voltage, 115 or 230VAC. Note: This should be
the same setting as the Jumpers J2A and J2B are set for on the KBPC main board which should correspond to the correct AC line input
voltage. Refer to the KBPC-240D Installation and Operating Instruction Manual for complete information.
TABLE 2 – GENERAL PERFORMANCE SPECIFICATIONS
Input AC line voltage – 50/60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115/230
Maximum number of run/brake or forward/reverse operations per minute* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ambient temperature range (°C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 – 50
*Based on a one (1) minute braking time.
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