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14300 De La Tour Drive
South Beloit, IL 61080
Phone: (815) 624-6915
Fax: (815) 624-6965
www.americancontrolelectronics.com
1Q SCR NEMA 1 Adjustable Speed Drive
with Reversing and Dynamic Braking
for PMDC or Field Wound Brushed Motors
LGC430
......................................................115/230 VAC ± 10%, 50/60 Hz, single phase
...................................................................................................1.37 at base speed
..............................................................50 or 100 VDC
............................................................100 or 200 VDC
...................................................................................................1 Amp
...................................0.5 - 11 seconds
.................................0.5 - 22 seconds
...................coast to stop - 13 seconds
.................coast to stop - 25 seconds
..................................................................0 - 1.4 VDC
..................................................................0 - 2.8 VDC
.....................................................................................>100K ohms
....................................................................................1% base speed or better
........................................................................................................................60:1
...........................................................................................0.5G maximum
..............................................................................................0.1G maximum
...................................................................................10°C - 40°C
..............................................................................................................................3.0 lbs
UL/cUL Listed Equipment, file # E132235
UL/cUL Overload Protection
CSA Certified Component, file # LR41380
AC Line Voltage
Form Factor
Field Voltage
with 115 VAC line voltage
with 230 VAC line voltage
Maximum Field Current
Acceleration Time Range
for 90 VDC armature voltage
for 180 VDC armature voltage
Deceleration Time Range
for 90 VDC armature voltage
for 180 VDC armature voltage
Analog Input Range
(Signal must be isolated; S1 to S2)
with 115 VAC line voltage
with 230 VAC line voltage
Input Impedance
(S1 to S2)
Load Regulation
Speed Range
Vibration
(0 - 50 Hz)
(>50 Hz)
Ambient Temperature Range
Weight
Safety Certifications
..................................................
Safety Certifications
......................................................................
Safety Certifications
..................................................
* Heat sink kit HSK- 0002 must be used when the continuous output current is over 5 amps.
1/20 - 1/8
1/10 - 1/4
1/8 - 1
1/4 - 2
Horsepower
Range
1.5
10.0*
Continuous
Armature
Current (Amps)
0 - 90
0 - 180
0 - 90
0 - 180
Armature
Voltage Range
(VDC)
115
230
115
230
Line
Voltage
(VAC)
LGC430-1.5
LGC430-10
Model
Specifications
Safety Warnings
•
DO NOT INSTALL, REMOVE, OR REWIRE THIS EQUIPMENT WITH POWER APPLIED.
Have a
•
qualified electrical technician install, adjust and service this equipment. Follow the National
•
Electrical Code and all other applicable electrical and safety codes, including the provisions of the
•
Occupational Safety and Health Act (OSHA), when installing equipment.
•
Circuit potentials are at 115 or 230 VAC above earth ground
. Avoid direct contact with the printed
•
circuit board or with circuit elements to prevent the risk of serious injury or fatality. Use a non-
•
metallic screwdriver for adjusting the calibration trim pots. Use approved personal protection
•
equipment and insulated tools if working on this drive with power applied.
• Reduce the chance of an electrical fire, shock, or explosion by using proper grounding techniques,
•
over-current protection, thermal protection, and enclosure. Follow sound maintenance procedures.
•
Removing AC line power is the only acceptable method for emergency stopping.
Do not use
•
dynamic braking, decelerating to minimum speed, or coasting to a stop for emergency stopping.
•
They may not stop a drive that is malfunctioning. Removing AC line power is the only acceptable
•
method for emergency stopping.
• Line starting and stopping (applying and removing AC line voltage) is recommended for infrequent
•
starting and stopping of a drive only. Dynamic braking, decelerating to minimum speed, or coasting
•
to a stop is recommended for frequent starts and stops. Frequent starting and stopping can produce
•
high torque. This may cause damage to motors.
•
Do not disconnect any of the motor leads from the drive
unless power is removed or the drive is
•
disabled. Opening any one lead while the drive is running may destroy the drive.
• The field output is for shunt wound motors only. Do not make any connections to terminals 6 and 7
•
when using a permanent magnet motor.
• Change voltage switch settings only when the drive is disconnected from AC line voltage. Make sure
•
both switches are set to their correct position. If the switches are improperly set to a lower voltage
•
position, the motor will not run at full voltage and may cause damage to the transformer. If the
•
switches are improperly set to a higher voltage, the motor will overspeed, which may cause motor
•
damage, or result in bodily injury or loss of life.
•
Do not change the FORWARD/REVERSE switch while the motor is running.
The motor must come
•
to a complete stop before reversing. Changing motor direction before allowing the motor to
•
completely stop will damage the drive and/or motor.
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
1.7 9
[45 ]
5.0 0
[127]
8.00 [203 ]
6.00 [125 ]
2.50
[64]
2.50
[64]
C
L
2.7 5
[70 ]
1.25 [32]
2.50
[64]
1.72
[44]
3.46 [88]
SEPA RA TE MOTOR O VERC URRENT AND O VERL OA D PR OTECTION IN A CCOR DA NCE WITH
THE CANADIAN ELECTRICAL CODE P ART 1 IS PRO VIDED BY OTHERS.
MADE IN THE U.S.A .
POWE R
RUN
BRAKE
FORWAR D
REVERSE
I
0
WARNING: DISCONNECT FROM SUPP LY BEFORE OPENING THIS C OV ER.
WARNING !
ALLOW MOTO R TO STO P
BEFORE REVERSING
ALL DIMENSIONS IN INCH
E
S [MILLIMETER
S]
Dimensions
Ø0.19
[5] (4)
Ø0.88
[22] (2)
Installation
Mounting
NEMA 1 cased drives come with two 0.88 inch (22 mm) conduit holes at the bottom of the case. The
drives may be vertically wall mounted or horizontally bench mounted using the three keyholes on the
back of the case.
1. For access to the keyholes and the terminal strip, remove the two screws from the front of the case
1.
by turning them counterclockwise. Grasp the front cover and pull it straight out.
2. Install the mounting screws in the three keyholes.
3. Set the POWER switch to the OFF position before applying the AC line voltage.
4. Install conduit hardware through the conduit holes at the bottom of the case. Connect external
3.
wiring to the terminal block.
5. Reinstall the front cover. Avoid pinching any wires between the front cover and the case.
6. Reinstall the two screws on the front cover. Turn the screws clockwise to tighten
.
Heat Sinking
The LGC430-10 requires an additional heat sink when the continuous armature current is above 5
amps. Use ACE heat sink kit part number HSK-0002. Use a thermally conductive heat sink compound
(such as Dow Corning 340® Heat Sink Compound) between the back of the case and the heat sink
surface for optimal heat transfer.
Wiring
Use 14 - 16 AWG wire for AC line and motor wiring.
Shielding Guidelines
As a general rule, ACE recommends shielding of all conductors. If it is not practical to shield power
conductors, ACE recommends shielding all logic-level leads. If shielding of logic-level leads is not
practical, the user should twist all logic leads with themselves to minimize induced noise. It may be
necessary to earth ground the shielded cable. If noise is produced by devices other than the drive,
ground the shield at the drive end. If noise is generated by the drive, ground the shield at the end
away from the drive. Do not ground both ends of the shield.
Fusing
LGC430 series drives provide fusing for the AC line (1, 3).
Fuses are fast acting fuses
. LGC430-1.5
models contain fuses rated for 3A at 250 VAC. LGC430-10 models contain fuses rated for 15A at
250 VAC.
Connections
POWER
Line Input
Connect the AC line power leads to terminals L1 and L2, or to a double-throw, single-pole master power
switch (recommended). The switch should be rated at a minimum of 250 VAC and 200% of motor current.
Motor
Connect the DC armature leads to terminals A1 and A2. If the motor spins in the reverse of desired rotation,
simply power down the drive and reverse these connections.
Field
At 115 VAC, connect the field leads to terminals F1 and L1 for a 50 VDC field or to F1 and F2 for a 100 VDC field.
At 230 VAC, connect the field leads to terminals F1 and L1 for a 100 VDC field or to F1 and F2 for a 200 VDC.
Do not make any connections to F1 and F2 if using a permanent magnet motor.
LOGIC
Speed Potentiometer
S1, the wiper
to S2, and the supply to S3. If the potentiometer works inveresly of desired functionality, (i.e. to increase
motor speed, you must turn the potentiometer counterclockwise), power off the drive and swap the S1 and
S3 connections.
Inhibit
Short the inhibit terminals to coast the motor to minimum speed. Open the INHIBIT terminals to
accelerate the motor to set speed. Twist inhibit wires and seperate them from power-carrying wires or
sources of electrical noise. Use shielded cable if the inhibit wires are longer than 18 inches (46 cm). If
shielded cable is used, ground only one end of the shield to earth ground. Do not ground both ends of
the shield.
ACE offers two accessory plug harnesses for connecting to the inhibit terminals; part number KTW-0001
[18 in (46 cm) leads] and part number KTW-0002 [36 in (91 cm) leads].
Line Input
Connect the AC line power leads to terminals 1 and 2 if using 115 VAC line power or to terminals 1 and 3
if using 230 VAC line power.
Motor
Connect the DC armature leads to terminals 4 and 5. If the motor does not spin in the desired direction,
power down the drive and reverse these connections.
Field
At 115 VAC, connect the field leads to terminals 7 and 1 for a 50 VDC field or to 7 and 6 for a 100 VDC field.
At 230 VAC, connect the field leads to terminals 7 and 1 for a 100 VDC field or to 7 and 6 for a 200 VDC field.
Do not make any connections to terminals 6 and 7 if using a permanent magnet motor.
Speed Potentiometer (Pre-wired)
LGC430 series drives are pre-installed with a 10K ohm, 1/4 W potentiometer for speed control.
Run/Stop Switch (Pre-wired)
LGC430 series drives are pre-installed with a Run/Stop switch. When set to Stop, this switch will inhibit
the drive, disconnect the motor armature, and connect a dynamic braking resistor across the motor. The
dynamic braking resistor allows the motor to stop quicker than if allowed to naturally coast to a stop.
Forward/Reverse Switch (Pre-wired)
LGC430 series drives are pre-installed with a Forward/Reverse switch. This switch swaps the motor
armature wires to change motor rotation direction. To use the Forward/Reverse Switch, first set the
Run/Stop switch to Stop. When the motor has come to a complete stop, toggle the direction switch
and then set the Run/Stop switch to Run.
Do not change the Forward/Reverse switch while the motor
is running.
1
2
3
4
5
6
7
+
-
EARTH G R OU N D
( GREEN SCREW )
11 5
VA C
2 30
VA C
M O T OR
ARMA T U R E
WITH 11 5 V A C IN P U T :
CO NNE C T T O TERMINAL 1 F O R 50 V O LT FIEL D .
CO NNE C T T O TERMINAL 6 F O R 1 00 V O LT FIEL D .
WITH 230 VAC INPUT:
CONNECT TO TERMINAL 1 FOR 100 VOLT FIELD.
CONNECT TO TERMINAL 6 FOR 200 VOLT FIELD.
M O T O R FIEL D
( SHUNT WOUN D
MOTORS ONL Y )
NOTE: DO NOT make
any connections to
terminals 6 and 7 if using a
permanent magnet motor.
