Full manual available online
14300 De La Tour Drive
South Beloit, IL 61080
Phone: (844) AMCNTRL
Fax: (800) 394-6334
www.americancontrolelectronics.com
1Q SCR Chassis Adjustable Speed Drive
for PMDC or Field Wound Brushed Motors
LGC400
TM
An ISO 9001:2008 Certified Company
......................................................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 - 55°C
..............................................................................................................................0.7 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- 0001 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)
LGC400-1.5
LGC400-10
Model
Specifications
Drive Model
T
ype
s
of Branch
Circuit Protec
tio
n
Maximu
m Rating of
Overcurren
t Protection
Maximum Current, A
Maximum Voltage, V
LGD400-10
10,000
240 V
Non-
ti
me Delay
K5 Fuse
Inverse Time
Circuit Breaker
30 A
Short Circuit Current Rating
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.
•
ACE strongly recommends the installation of a master power switch in the line voltage input.
The
•
switch contacts should be rated for 250 VAC and 200% of motor nameplate current.
•
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 F1 and F2 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.
• Under no circumstances should power and logic level wires be bundled together.
• Be sure potentiometer tabs do no make contact with the potentiometer’s body. Grounding the
•
input will cause damage to the drive.
• This product does not have internal solid state motor overload protection. It does not contain speed-
•
sensitive overload protection, thermal memory retention, or provisions to receive and act upon
•
signals from remote devices for over temperature protection. If motor protection is needed in the
•
end-use product, it needs to be provided by additional equipment in accordance with NEC standards.
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
ALL DIMENSIONS IN INCH
E
S [MILLIMETER
S]
Dimensions
Installation
Mounting
• Drive components are sensitive to electrostatic discharge. Avoid direct contact with the circuit
•
board. Hold the drive by the chassis or heat sink only.
• Protect the drive from dirt, moisture, and accidental contact.
• Provide sufficient room for access to the terminals and calibration trim pots.
• Mount the drive away from heat sources. Operate the drive within the specified ambient operating
•
temperature range.
• Prevent loose connections by avoiding excessive vibration of the drive.
• Mount the drive with its board in either a horizontal or vertical plane. Eight 0.19” (5 mm) wide slots
•
in the chassis accept #8 pan head screws. Fasten either the large base or the narrow flange of the
•
chassis to the subplate.
• The chassis should be earth grounded. Use a star washer beneath the head of at least one of the
•
mounting screws to penetrate the anodized chassis surface and to reach bare metal.
Heat Sinking
The LGC400-10 requires an additional heat sink when the continuous armature current is above 5
amps. Use heat sink kit part number HSK-0001. Use a thermally conductive heat sink compound
(such as Dow Corning 340® Heat Sink Compound) between the chassis and the heat sink surface for
optimal heat transfer.
Wiring
Use 18 - 24 AWG wire for logic wiring. Use 14 - 16 AWG wire for AC line and motor wiring.
Shielding Guidelines
As a general rule, it is recommended to shield all conductors. If it is not practical to shield power
conductors, it is recommended to shield 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
The drives require an external line fuse for protection. Use fast acting fuses rated for 250 VAC or
higher and 150% of the maximum armature current. Fuse the HOT leg of the AC line when using 115
VAC and both lines when using 230 VAC.
MOTOR
FUSE
*FUSE
STOP
SWITCH
AC LINE
VOLTAGE
115/230 VAC
10K OHM
SPEED ADJUST
POTENTIOMETER
CW
* NOTE: Do not add fuse to L2
unless input voltage is 230 VAC.
Inhibit
Terminals
Line Input
Connect the AC line power leads to terminals L1 and L2. ACE recommends the use of a double-pole,
single-throw master power switch. 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 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 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 field.
Do not make any connections to F1 and F2 if using a permanent magnet motor.
Speed Potentiometer
Use a 10K ohm, 1/4 W potentiometer for speed control. Connect the counter-clockwise end of the potentiometer
to S1, the wiper to S2, and the clockwise end to S3. If the potentiometer works inversely 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.
Do not use the inhibit for emergency stopping.
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].
Connections
POWER
LOGIC
NOTE: DO NOT make
any connections to
F1 and F2 if using a
permanent magnet motor.
