1Q SCR NEMA 4X Adjustable Speed Drive
for PMDC or Field Wound Brushed Motors
LGC440
TM
An ISO 9001:2008 Certified Company
Full manual available online
14300 De La Tour Drive
South Beloit, IL 61080
Phone: (844) AMCNTRL
Fax: (800) 394-6334
www.americancontrolelectronics.com
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)
LGC440-1.5
LGC440-10
Model
Specifications
......................................................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
..................................................
Drive Model
T
ype
s
of Branch
Circuit Protec
tio
n
Maximu
m Rating of
Overcurren
t Protection
Maximum Current, A
Maximum Voltage, V
LGD440-10
10,000
240 V
Non-
ti
me Delay
K5 Fuse
Inverse Time
Circuit Breaker
30 A
Short Circuit Current Rating
Safety Warnings
READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT
•
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 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.
Dimensions
6.90 [175]
6.30 [160]
0.87 [22]
7.76 [197]
6.00 [152]
8.20 [208]
3.70 [94]
2.25 [57]
2.50 [64]
0.13 [3]
4.50 [114]
a
WARNING: DISCONNECT FROM SUPPLY BEFORE OPENING THIS COVER.
SEPARATE MOTOR OVERCURRENT AND OVERLOAD PROTECTION IN ACCORDANCE WITH
THE CANADIAN ELECTRICAL CODE PART 1 IS PROVIDED BY OTHERS.
MADE IN THE U.S.A.
POWER
SPEED
I
0
50
MOTOR
NEMA 4X
DC
CONTROL
ALL DIMENSIONS IN INCH
E
S [MILLIMETER
S]
Installation
Mounting
NEMA 4X cased drives come with two 0.88 inch (22 mm) conduit knockout holes at the bottom of the
case. The drives may be vertically wall mounted using the four 0.19 inch (5 mm) slotted holes on the
attached heat sink. For loads less than 5 amps, the drives may be bench mounted horizontally or
operated without mounting.
1. Install the mounting screws.
2. For access to the terminal strip, turn the slotted screw on the front cover counterclockwise until it is
2.
it is free from the case. The right side of the cover is hinged to the case. Pull the slotted screw to
2.
open the case.
3. Carefully remove the conduit knockouts by tapping them into the case and twisting them off with
3.
pliers.
4. Set the POWER switch to the OFF position before applying AC line voltage.
5. Install conduit hardware through the 0.88 inch (22 mm) knockout holes. Connect external wiring to
4.
the terminal block.
6. Grasp the slotted screw and tilt the front cover back into place. Avoid pinching any wires between
5.
the front cover and the case.
7. Turn the slotted screw clockwise until tight to secure the front cover.
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 provide fusing for the AC line (1, 3). Fuses are fast acting fuses. LGC440-1.5 models contain
fuses rated for 3A at 250 VAC. LGC440-10 models contain fuses rated for 15A at 250 VAC.
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)
LGC440 series drives are pre-installed with a 10K ohm, 1/4 W potentiometer for speed control.
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].
1
2
3
4
5
6
7
+
-
EARTH GROUND
(GREEN SCREW)
115
VAC
230
VAC
MOTOR
ARMATURE
WITH 115 VAC INPUT:
CONNECT TO TERMINAL 1 FOR 50 VOLT FIELD.
CONNECT TO TERMINAL 6 FOR 100 VOLT FIELD.
WITH 230 VAC INPUT:
CONNECT TO TERMINAL 1 FOR 100 VOLT FIELD.
CONNECT TO TERMINAL 6 FOR 200 VOLT FIELD.
MOTOR FIELD
(SHUNT WOUND
MOTORS ONLY)
Inhibit
Terminals
Connections
POWER
LOGIC
NOTE: DO NOT make
any connections to
terminals 6 and 7 if using a
permanent magnet motor.
