KBPW-240D PWM DC MOTOR SPEED CONTROL NEMA-4X / IP-65

KBPW-240D PWM DC MOTOR SPEED CONTROL NEMA-4X / IP-65
DATA SHEET D-105
KBPW-240D
PWM DC MOTOR SPEED CONTROL
NEMA-4X / IP-65
For PM and Shunt Motors Rated:
1/50 – 3/4 HP (SCR), 1 HP (PWM) @ 115 VAC
1/25 – 11⁄2 HP (SCR), 2 HP (PWM) @ 230 VAC
Model KBPW-240D
KB Part No. 8401 (Black Case)
KB Part No. 8402 (White Case)
Rated 7.5 Amps DC, 11.5 Amps AC @ 115/230 VAC
Washdown and Watertight
*
for Indoor and Outdoor Use
Pending
STANDARD FEATURES
DESCRIPTION
• Short Circuit Protection: Protects control from short circuits.
• Electronic Motor Burnout Protection: Shuts down the control if
a prolonged overload condition exists.
• Active Bridge: Limits AC Line inrush current.
• Power Transistor Short Circuit Protection: Prevents high speed
runaway if the power transistor shorts.
• Heat Spreader: Prevents power transistor failure during momentary overload conditions.
• LEDs: Power on (ON), Stop (STOP) and Overload (OL).
• Auto AC Line Select: Control automatically adjusts for 115 VAC
or 230 VAC – 50/60 Hz.
• Start/Stop Switch: Provides electronic start/stop function.
• Output Run Relay: Indicates state of control – (Run or Stop)
TRIMPOT ADJUSTMENTS
• Acceleration (ACCEL)
• Deceleration (DECEL)
• Maximum Speed (MAX)
• Minimum Speed (MIN)
• Current Limit (CL)
• Timed Current Limit (TCL)
• IR Compensation (IR)
• Jog (JOG)
JUMPER SELECTABLE FEATURES
• J1, (T/90V/180V) selects nominal motor voltage or tachometer generator feedback.
• J2, (1.7A, 2.5A, 3.5A, 5.0A, 7.5A, also low current range) selects
motor current. See general performance specifications.
• J3, (TCL/NTCL) selects timed or non-timed current limit.
• J4, (7V/50V) selects tachometer generator voltage.
• J5, (NC/NO) selects normally closed or open run relay contacts.
OPTIONAL ACCESSORIES
• On/Off AC line switch (P/N 9341): Disconnects the AC line.
• FWD-BRK-REV switch (P/N 9339): Provides reversing and
dynamic braking.
• Run-Stop-Jog switch (P/N 9340): Selects speed setting from
either main potentiometer or JOG trimpot.
• Signal Isolator KBSI-240D (P/N 9431): Provides isolation between
non-isolated signal sources and the KBPW-240D.
• Anti-Plug Reversing Module APRM (P/N 9378A): Provides electronic braking and instant reversing.
• Auto/Manual Switch (P/N 9377): Selects either isolated signal
(from KBSI-240D) or main speed potentiometer signal.
The KBPW-240D is a PWM (pulse width modulated) control in a
NEMA-4X / IP-65 washdown and watertight enclosure designed to
operate Permanent Magnet and Shunt Wound motors through 7.5
Amps DC. The efficient PWM waveform, operating at a switching frequency greater than 16kHz, provides almost pure DC to the motor
(form factor <1.05). This provides high motor efficiency, whisper quiet
operation along with less motor heating. This allows for a smaller, less
costly motor to be used in most applications. Another advantage of
PWM is higher output voltage (up to 130 VDC for 115 VAC lines and
220 VDC for 230 VAC lines) which provides increased motor speed.
The KBPW-240D contains pulse-by-pulse current sensing, which
provides short circuit protection and prevents control damage due to
commutator arcing. Permanent magnet motor demagnetization is virtually eliminated because current peaks are reduced to safe levels. In
addition, the main power transistor is mounted to a heat spreader, providing enhanced heat dissipation. This eliminates over temperature
cycles that cause premature transistor failure.
A unique feature of the KBPW-240D is its active bridge, which
substantially reduces the AC line surge current during cycling of the AC
line. This allows the control to be turned on and off rapidly without
damage to critical components. The active bridge is coupled with a
failsafe circuit that will shut down the control if the main power transistor shorts, preventing a dangerous high-speed runaway condition.
Motor burnout is prevented with the Timed Current Limit circuit (TCL)
by shutting down the control when an overload condition exists for a
predetermined amount of time. A special AC line input circuit automatically adjusts the control for 115 or 230 VAC.
Standard front panel features include diagnostic LEDs (for power
on, stop, and overload), Start/Stop switch, and Speed potentiometer.
Other features include barrier terminal blocks to facilitate wiring,
adjustable trimpots (accel, decel, max speed, min speed, current limit,
timed CL, IR comp, and jog speed), customer selectable jumpers
(motor voltage, motor current, timed current limit, and tach voltage),
and an output run relay.
Optional accessories include Fwd-Brk-Rev Switch, On/Off AC
Line Switch, Run-Stop-Jog Switch, Signal Isolator, and an Anti-plug
Reversing Module. Quick-connect terminals are provided for easy
installation of all accessories.
*Note: Requires CE RFI filter KBRF-200A (KB P/N 9945) or equivalent.
™
A Complete Line of Motor Drives
MODEL KBPW-240D (KB Part No’s 8401 and 84021) – GENERAL PERFORMANCE SPECIFICATIONS
Parameter
Specification
Factory Setting
>16
–
Operating Frequency (kHz)
Operating Temperature Range at Full Rating (ºC)
0 – 45
–
Current Range (High Scale) (Amps DC)
1.7, 2.5, 3.5, 5.0, 7.5
7.5
Current Range (Low Scale) (Amps DC) 2
0.2, 0.3, 0.4, 0.5, 0.8
–
0.5 – 10
1
Jog Seed (% Base Speed)
0 – 50
15
MIN Speed Range (% Base Speed (90VDC & 180VDC Motors))
0 – 30
0
MAX Speed Range (% Base Speed (90VDC & 180VDC Motors))
50 – 140
100
IR Comp Range at 115 Volts AC Line (∆Volts DC at full load)
0 – 15
4
IR Comp Range at 230 Volts AC LIne (∆Volts DC at full load)
0 – 30
8
CL Range (% Range Setting)
0 – 200
150
0.5 – 10
5
ACCEL and DECEL Range (Seconds)
Timed Current Limit (TCL) Range (Seconds)
AC Line Input Voltage (Volts AC ±10%, 50/60 Hz)
115 – 230
–
Armature Voltage Range at 115 Volts AC Line Input (Volts DC)
0 – 130
90
Armature Voltage Range at 230 Volts AC Line Input (Volts DC)
0 – 130 3, 0 – 220
90
Field Voltage at 115 Volts AC Line Input (Volts DC)
100
–
Field Voltage at 230 Volts AC Line Input (Volts DC)
200
–
Speed Range (Ratio)
50:1
–
Notes: 1. KB P/N 8402 – FDA approved white epoxy finish. 2. For low current operation, remove R35. 3. Step-down operation – Motor may have reduced brush life – Consult motor manufacturer.
ELECTRICAL RATINGS
Maximum Horsepower
HP, (KW)
AC Line Voltage
(±10%, 50/60 Hz)
(VAC)
Maximum
Motor Voltage
(VDC)
Maximum AC
Line Current
(Amps RMS)
Maximum DC
Load Current
(Amps DC)
SCR Rated Motors
PWM Rated Motors
115
130
11.5
7.5
3/4, (0.5)
1, (0.75)
100
230
220
11.5
7.5
11⁄2, (1)
2, (1.5)
200
CONTROL LAYOUT & CONNECTION DIAGRAM
CON1 ACCEL DECEL MAX MIN
INH1
WHT
INH2
BLK
START
RED
COM
TCL
IR
KBPW–240D
A57440
5.886
[149.50]
5.472
[138.99]
TCL NTCL
ON
STOP
CL
YG R B
VLT
JOG
ORN
P3
C56
J5
NC NO
ON
STOP
OL
P1
K1
TB3
T-
TACH INPUT
T+
RELAY
TB4
K2
RUN RELAY
K1
P2
WHT
MAIN SPEED
POTENTIOMETER
5.000
[127.00]
0.357
[9.07]
LED BOARD
STOP
PENTA-DRIVE™
C55
J1
PWM DC MOTOR SPEED CONTROL
180V
T
90V
TACH
Q3
T2
D11
J2
H
L
AMPS
7.5 0.8
5.0 0.5
3.5 0.4
40
2.5 0.3
1.7 0.2
30
50
60
70
20
80
10
J4
7V 50V
8.876
[225.45]
T1
8.226
[208.94]
90
0
100
%
FWD
BRK
R35
REV
D6
J6A
ORG RED WHT BLK L1A L1B
D20
A1B
CON2
NEMA-4X / IP-65
J7B
J7A
BLU BLU WHT WHT
L2A
L2B
Q4
J6B
STOP
CL
MECHANICAL SPECIFICATIONS (Inches / mm)
J3
START/STOP
SWITCH
START
JOG
Field Voltage
(VDC)
A1A
A2B
+
RUN
STOP
JOG
Q5
TB1
TB2
F1 F2
START
A2A
™
A1
A2
L1
L2
+
FIELD
(SHUNT MOTORS ONLY)
-
M
MOTOR
AC LINE
115/230 VAC
50/60 Hz
GROUND
(EARTH)
KB ELECTRONICS, INC.
12095 NW 39th Street, Coral Springs, FL 33065-2516 • (954) 346-4900 • Fax (954) 346-3377
Outside Florida Call TOLL FREE (800) 221-6570 • E-mail – [email protected]
www.kbelectronics.com
(A42102) – Rev. B – 3/2000
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