Installation and Operation Manual Supplemental Information
Installation and Operation Manual Supplemental Information
Installation and Operation Manual Supplemental InformationInstallation and Operation Manual Supplemental Information
This supplement is for Models KBRG-240D, KBRG-225D, and KBRG-255 Installation and Operation Manuals (Part Nos. A40260 and A40287)
until the new manuals are available. The manuals must be read and understood before operating these controls. For further assistance,
contact our Sales Department at 954-346-4900 or Toll Free at 800-221-6570 (outside Florida).
Telephone: 954-346-4900; Fax: 954-346-3377
The OFFSET and TCL trimpots have been moved to be aligned with the other trimpots. The General Performance Specifications, Electrical
Ratings, Mechanical Specifications, and Connection Diagrams have not changed. The Parts Lists and Schematics in the manuals no longer
apply to these controls and should not be used. See Figure 1, below, for Models KBRG-225D and KBRG-240D Logic Board’s Trimpot and
Jumper location changes. See Figure 2, on page 2, for Model KBRG-255 Logic Board’s Trimpot and Jumper location changes.
These Controls have been Converted to Surface Mount Technology (SMT)
Figure 1
Models KBRG-225D and KBRG-240D Logic Board Layout
(A42143) – Rev. A00 – 2/27/2007– Z4431A00Page 1 of 2
“The Right Control for Your Application.” 12095 NW 39 Street, Coral Springs, FL 33065-2516
IMPORTANT – You must read these simplified operating instructions before you proceed.
These instructions are to be used as a reference only and are not intended to replace the
detailed instructions provided herein. You must read the Safety Warning before proceeding.
1. CONNECTIONS.
2. SPEED OR TORQUE MODE.
3. TRIMPOT SETTINGS.
4. FUSING.
!
A. AC Line – Wire AC line voltage (230VAC ±10%, 50/60 Hz). Connect ground wire
(earth) to green ground screw.
B. Motor.
1. Permanent Magnet (PM Type). Connect motor armature leads to M1+ and M2-.
2. Shunt Wound Motors. Connect motor armature as above. Connect full voltage
shunt field wires (180 volt motors with 200 volt fields) to F+ and F-. Connect half
voltage field wires (180 volt motors with 100 volt fields) to F+ and L1.
Jumper J7 is factory set for speed control operation (SPD). For torque control, set J7 to
TRQ position. Note: J8 must be set to “S/LT” position for speed control operation.
All trimpots have been factory set in accordance with figure 1, page 3.
The KBRG-255 does not contain AC line or armature fusing. It is recommended that a 40
Amp fuse or circuit breaker be installed on each AC line conductor not at ground potential.
Do not fuse ground or neutral wires.
5. SIGNAL INPUT.
Connect potentiometer or isolated analog input to terminal “10,” “11,” “12" and “13"
according to section V, E and F, on pages 7 and 9. Do not ground (earth) signal inputs.
Use a signal isolator when controlling multiple drives from a non isolated signal source.
ii. 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 explosion 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 electronic 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.
1
This product complies with all CE directives pertinent at the time of manufacture.
Contact factory for detailed installation instructions and Declaration of
Conformity. Installation of a CE approved RFI filter is required. Additional shielded
motor cable and/or AC line cables may be required along with a signal isolator (SI-4X, KB
P/N 8801 or equivalent).
I.GENERAL INFORMATION.
The KBRG-255 is a full-wave regenerative control, capable of operating a DC motor
(Permanent Magnet or Shunt) in a bidirectional mode. It provides 4-quadrant operation which
allows forward and reverse torque in both speed directions. The drive offers excellent
controllability, which closely approximates the performance of servo-type drives. Ratings and
specifications are presented in tables 1 and 2. Be sure the drive is used within these ratings
and specifications.
(Note: Regenerative drives normally produce more motor heating than standard
unidirectional SCR speed controls, especially under low speed operation. This should
be taken into consideration when specifying motor rating.)
WARNING! Be sure to follow all instructions carefully. Fire or electrocution
can result due to improper use of this product. Read Safety Warning.
TABLE 1 – ELECTRICAL RATINGS
Input
ModelPart No.
KBRG-2558821230380 – ±180255, (3.8)
Voltage
(VAC)
Max. AC
Current
(RMS)
Output
Voltage
(VDC)
Max. DC
Output
Current (ADC)
Max.
Horsepower
HP, (KW)
TABLE 2 – GENERAL PERFORMANCE SPECIFICATIONS
ParameterSpecificationFactory Setting
AC Line Input Voltage (VAC ±10%,50/60 Hz)
AC Line Frequency (Hz), # of Phases
Arm Voltage Range at 230VAC Line (VDC)
Field Voltage at 230VAC Line (VDC)
Service Factor
Duty
Max Load Capacity (% for 2 minutes)
Ambient Temperature Range (ºC)
Speed Range (Ratio)
Arm Feedback Load Regulation (% Base Speed)
Tach Feedback Load Regulation (% Set Speed)
Line Regulation (% Base Speed)
FWD and REV Accel Range (Secs.)
Dead Band Range (% Base Speed)
Max Speed Trimpot Range (% Base Speed)
IR Comp Range at 230VAC Line (VDC)
FWD and REV CL Range (%)
Timed CL Range (Sec.)
Voltage Following Input Range (VDC)
Voltage Following Linearity (% Base Speed)
Tach-generator Voltage input (volts)