Cut Sheet

DATA SHEET D-420
KBMG-212D
ULTRACOMPACT REGENERATIVE DRIVE
FULL-WAVE • 4-QUADRANT
SCR Variable Speed and Torque Control for
PM and Shunt Motors
ONE MODEL COVERS:
1/10 – 1HP (90VDC) @ 115VAC – 50/60 Hz
1/5 – 2HP (180VDC) @ 230VAC – 50/60Hz
• Conveyors • Indexers • Feeders • Positioners
• Textile Equipment • Packaging Machinery
• Web Control • Converting Machinery
SPECIFICATIONS
AC Line Input Voltage (VAC ±10% 50/60 Hz) .................................. 115 or 230
AC Line Frequency (Hz)............................................................................ 50/60
Armature Voltage Range 115VAC Line (VDC)...................................... 0 – ± 90
Armature Voltage Range 230VAC Line (VDC) .................... 0 – ± 90, 0 – ± 180
Field Voltage at 115VAC Line (VDC) ...................................................... 100/50
Field Voltage at 230VAC Line (VDC) .................................................... 200/100
Max Load Capacity (% for 2 Minutes).......................................................... 150
Ambient Temperature Operating Range (°C) .......................................... 0 – 50
Speed Range (Ratio) .................................................................................. 50:1
Armature Feedback Load Regulation (% Base Speed) ................................ ±1
Tach-generator Feedback Load Regulation (% Set Speed) .......................... ±1
AC Line Regulation (% Base Speed) .......................................................... ±0.5
Current Ranges (Amps DC) ............................................ 1.7, 2.5, 5.0, 7.5, 10*
Forward Accel (FACC) and Reverse Accel (RACC) Range (Sec.) ...... 0.1 – 15
Dead Band Range (% Base Speed) ........................................................ 0 – ±5
Max Speed Trimpot Range (% Base Speed) ...................................... 55 – 110
IR Comp Range at 115VAC Line (VDC @ Full Load).............................. 0 – 20
IR Comp Range at 230VAC Line (VDC @ Full Load) ............................ 0 – 40
Forward CL (FCL) and Reverse CL (RCL) Range (% Range Setting) .. 0 –
175
Voltage Following Input Range (VDC)** .................................. 0 – ±10, 0 – ±15
Voltage Following Linearity (% Base Speed) .............................................. ±0.5
A Complete Line of Motor Drives
Rev.______(A_______)
Spec Tech Industrial 203 Vest Ave. Valley Park, MO 63088 Phone: 888 SPECTECH
Email: [e-mail] www.spectechind.com
TM
DESCRIPTION
The KBMG is an ultracompact, full-wave regenerative drive
capable of operating DC PM or Shunt motors in a bidirectional mode.
Its 4-quadrant operation provides forward and reverse torque in both
speed directions. This allows the control to maintain constant speed
with overhauling loads and provides rapid reversing and controlled
braking. Because of its excellent controllability and response time, the
KBMG can replace servos in many applications. The control is factory
set for armature feedback, which provides up to 1% load regulation
over a motor base speed of 50:1. Tach-generator feedback is also
provided for superior load regulation if required. A simple jumper
setting converts the KBMG to a torque control. In this mode, motor
torque rather than motor speed is controlled.
An important feature of the drive is the factory-calibrated, built-in,
selectable motor current jumper. It eliminates the need to recalibrate
IR Comp and Current Limit for most applications.
The control contains an Enable function that can be used to start
and stop the motor electronically via a contact closure. Through a
jumper selection, the motor can be controlled to rapidly “regenerate
to stop” or to “coast to stop.”
KB’s exc
lusive Auto Inhibit
®
circuit provides safe, smooth starting
even during rapid cycling of the AC line. The Overspeed Protect Circuit
prevents failure of the power bridge in extreme overhauling conditions.
Reliability of the KBMG is further enhanced with the use of a high
speed current limit circuit and MOV transient protection. LED’s, which
can be used for diagnostics, are provided for power on and motor
overload. A rugged extruded aluminum heatsink ensures enhanced
heat transfer, which provides a higher control rating while maintaining
cooler running SCR’s.
Power connections to the KBMG are made via quick connect
terminals and signal input connections are made via a removable
barrier terminal block.
A 5K remote potentiometer and full operating instructions are
supplied.
STANDARD FEATURES
• Jumper Selectable Features
Operation Mode: Speed, Torque
AC Line Voltage (VAC– 50/60 Hz): 115, 230
DC Armature Voltage (VDC): 90,180
Tach-generator Voltage (VDC): 7, 50
DC Current Output (ADC): 1.7, 2.5, 5.0, 7.5, 10*
Analog Input Voltage (VDC): 0 – 10, 0 – 15
Enable: Coast to Stop (CTS), Regenerate to Stop (RTS)
•
Trimpot Adjustments
Dead Band (DB) • Response (RESP) • IR Compensation (IR)
Forward Current Limit (FCL) • Reverse Current Limit (RCL)
Maximum Speed (MAX) • Forward Acceleration (FACC)
Reverse Acceleration (RACC)
•
LED’s
Power On (PWR ON) • Overload (OL)
* Requires Auxiliary Heatsink KB P/N 9861
** Requires isolated input or signal isolator
10
OPTIONAL FEATURES
• SIMG Bipolar Signal Isolator (P/N 8832) – Allows a nonisolated
signal source to be used.
•
Multi Speed Board (P/N 8833) – Provides discrete preset speeds
which can be controlled from a PLC.
•
4-Quadrant Accel/Decel (P/N 8834) – Provides independent settings
of forward accel, forward decel, reverse accel and reverse decel.
•
DIN Rail Mounting Kit (P/N 9995) – Converts control to standard
DIN Rail Mounting.
®