KBMM-125 KB Electronics DC SCR Chassis Speed Control Drive, 9449, 115VAC 3/4HP

Description

A Plug-In Horsepower Resistor, AC Line Fuse & Armature Fuse are required to use this drive!
Description
The KBMM™ full-wave variable speed DC motor controls, now with SMT construction, offer the user the ultimate in reliability and performance at an affordable price. The controls contain a unique, super fast, Direct-Fed™ current limit circuit that helps to protect the SCR power bridge against direct shorts 2 . The reliability of the KBMM™ is further enhanced with the use of high-surge, 25A SCRs and AC line and armature fusing 5 . The KBMM™ is fitted with KB’s exclusive Plug-in Horsepower Resistor® 5 . It eliminates the need for recalibrating IR Comp and Current Limit when the control is used on various horsepower motors. In addition, the rating of the control can be extended to 11 /2 HP at 115V and 3 HP at 230V by the use of KB’s auxiliary heat sink. Models KBMM225 and KBMM-225D also allow operation of 90 VDC motors when used on 230 VAC line input.
The versatility of the KBMM™ is confirmed by its extensive list of standard features, such as: selectable armature or tach feedback and adjustment trimpots for Min speed, Max speed, IR comp, CL and linear Accel and Decel. The KBMM™ includes Auto Inhibit®, which eliminates surging during rapid AC line switching; pulse transformer triggering, which provides cogless operation at low speed; and superior noise rejection circuitry, which eliminates false starts and blown SCRs. Enable (N/C) and Inhibit (N/O) functions provide electronic switching of control output.
The output voltage of the control is a linear function of potentiometer rotation. In addition, the control can be used in a voltage following mode by supplying an isolated analog input signal to terminal P2(+) and F-. The KBMM™ is compact in size (only 4.3" x 3.64" x 1.25") and easily replaces all competitive speed controls. The control is supplied with a 5k Ohm remote potentiometer and QD terminals.
Standard Features
Plug-in Horsepower Resistor®5 – Eliminates the need to calibrate control for IR Comp and Current Limit when used on various horsepower motors.
Auto Inhibit® – Allows the control to be rapidly switched “on” and “off” using the AC line.
Inhibit and Enable – Allows the control to be turned “on” and “off” using electronic switching.
Trimpots: MIN & MAX Speed, IR Comp, Current Limit, ACCEL & DECEL
Model KBMM-225D can operate on 115 or 230 VAC input with 90 or 180 VDC motors. – Jumper selectable.
Model KBMM-225 operates on 230 VAC input with 90 or 180 VDC motors.
Armature or Tach-Generator Feedback
MOV Transient Protection
SMT Construction
Power On and Current Limit LED Indicators
Built-in Armature and AC Line Fusing
Main Speed Potentiometer (5k Ohm)
Specifications
Brand
KB Electronics (Nidec)
Part Number
9449
Model Number
KBMM-125
Maximum Rating
3/4 HP (without Auxiliary Heatsink)
0.6 kW (without Auxiliary Heatsink)
1.5 HP (with Auxiliary Heatsink)
1.1 kW (with Auxiliary Heatsink)
AC Line Voltage
115 Volts +/-15%
50/60Hz
AC Line Current (RMS)
12.0 Amps AC (without Auxiliary Heatsink)
24.0 Amps AC (with Auxiliary Heatsink)
Motor Voltage Range
0-90 VDC
DC Load Current (AVG)
8.0 Amps DC (without Auxiliary Heatsink
16.0 Amps DC (with Auxiliary Heatsink)
Field Voltage
50, 100 VDC
Dimensions
4.30" x 3.64" x 1.25" (LxWxH) Without Heatsink
7.00" x 6.25" x 2.625" (LxWxH) With Heatsink
Speed Range (Ratio)
50:1
Load Regulation – Armature Feedback (% Base Speed)
1* (0 – Full Load, 50:1 Speed Range)
Load Regulation – Tachometer Feedback (% Set Speed)
1* (0 – Full Load, 50:1 Speed Range)
Line Voltage Regulation (% Speed)
1/2* (At Full Load, +/- 10% Line Variation)
Control Linearity
2 (% Speed vs Dial Rotation)
CL/Torque Range
0-200 % Full Load
Acceleration Time Range
0.2-10.0 Seconds
Minimum Speed Trimpot Range
0-30 % Full Speed*
Max Speed Trimpot Range
50-120 % Full Speed*
IR Compensation Trimpot Range
0-24 Volts at Specified Full Load
Max Allowable Ambient Temperature at Full Rating
45°C
113°F
Tachometer Feedback Input Volts
7/50 VDC per 1000 RPM
* Performance is for 90V permanent magnet motors on 115VAC and 180V permanent magnet motors on 230VAC.
Applications
Conveyors
Packaging Machines
Exercise Equipment
Pumps
Feeders
Screening and Printing Equipment
Plug In Horsepower Resistor
The Plug-In Horsepower Resistor (PHR) is supplied by your distributor and must be installed for the control to operate. It is used to automatically calibrate the IR Compensation and Current Limit based on motor horsepower and voltage. It eliminates the need to recalibrate the control in most applications. Select the correct PHR in accordance with the chart below. Be sure it is inserted completely into the mating sockets.
90-130VDC
Motor HP
180VDC
Motor HP
Resistor Value
KB Resistor
Part Number
1/100 to 1/50
1/50 to 1/25
1
9833
1/50 to 1/30
1/25 to 1/15
0.51
9834
1/30 to 1/20
1/15 to 1/10
0.35
9835
1/20 to 1/12
1/10 to 1/6
0.25
9836
1/12 to 1/8
1/6 to 1/4
0.18
9837
1/8 to 1/5
1/4 to 1/3
0.1
9838
1/4
1/2
0.05
9839
1/3
3/4
0.035
9840
1/2
1
0.025
9841
3/4
1.5
0.015
9842
1 **
2 **
0.01
9843
** Auxiliary Heat Sink (Part Number 9861 or equivalent) must be used to achieve the rating indicated.
AC Line & Armature Fuse Selection Chart
All fuses should be Littelfuse 3AB, Bussmann ABC, or equivalent. On domestic 230 VAC lines, separate branch circuit protection for each line must be used. The optional Barrier Terminal Board (Part Number 9897) contains prewired AC Line and armature fuse holders. An AC Line Fuse (supplied separately) must be installed in the AC line fuse Holder and an Armature Fuse (supplied separately) must be installed in the Armature Fuse Holder. Fuse each AC line conductor that is not at ground potential. Select the correct fuses in accordance with the table below:
90-130VDC
Motors
180VDC
Motors
AC Line
Fuse
AC Line
Fuse Part #
Armature
Fuse
Armature Fuse
Part #
1/100 to 1/50 HP
1/50 to 1/25 HP
12 Amps
9745
1/3 Amp
N/A
1/50 to 1/30 HP
1/25 to 1/15 HP
12 Amps
9745
1/2 Amp
9736
1/30 to 1/20 HP
1/15 to 1/10 HP
12 Amps
9745
3/4 Amp
9737
1/20 to 1/12 HP
1/10 to 1/6 HP
12 Amps
9745
1.25 Amps
9739
1/12 to 1/8 HP
1/6 to 1/4 HP
12 Amps
9745
2 Amps
9740
1/8 to 1/5 HP
1/4 to 1/3 HP
12 Amps
9745
2.5 Amps
9741
1/4 HP
1/2 HP
12 Amps
9745
4 Amps
9742
1/3 HP
3/4 HP
12 Amps
9745
5 Amps
9743
1/2 HP
1 HP
12 Amps
9745
8 Amps
9744
3/4 HP
1.5 HP
12 Amps
9745
12 Amps
9745
1 HP
2 HP
15 Amps
9745
15 Amps
9745
1.5 HP
3 HP
25 Amps
9746
25 Amps
9746
LR VID 10