Omega Products OMDC-123D-C User Manual
VARIABLE SPEED
DC CONTROL
OMDC-125
Series
Starts at
$
98
l Dual Voltage 120/240 Vac or 24/36 Vac
l Adjustable Horsepower Settings
l Full Wave Bridge Supply
l 1% Speed Regulation with Armature Voltage
Feedback (±
l Adjustable Min and Max Speeds
l Fixed 0.5 Sec Acceleration
l 5 kΩ Speed Potentiometer
(Leads, Dial and Knob Included)
l Line Voltage Compensated
l 50:1 Speed Range
l Chassis Mount
The OMDC-125 Series variable speed DC Control is a cost efficient,
reliable control for PM, shunt wound, and universal motors that
incorporates up-to-date design and engineering into a compact
package. Installation and field adjustments are facilitated using a
barrier type terminal strip and large, easily adjustable trimpots.
Adjustable horsepower range: 120 Vac;
1
⁄4 to 1. The OMDC-123D-C model operates on low input voltage of
24/36 Vac with an output of 150 mA to 5.5 ADC.
SPECIFICATIONS
Dimensions: 92 W x 108 H x 33 mm D (3.63 x 4.25 x 1.3")
Weight: 227 g (8 oz)
OPERATING CONDITIONS:
Temperature: -10 to 45°C (14 to 113°F)
AC input Voltage: ± 10% rated line voltage
Input Frequency: 50/60 Hz
1
⁄2% with Tach Feedback)
1
⁄8 to 1⁄2; 240 Vac; 1⁄25 to 1⁄4 and
For OMEGA’s
Full Selection
of Enclosures
Visit omega.com/
nema_enclosures
Speed
potentiometer
kit included.
OMDC-125DV-C, $98,
shown smaller than
actual size.
STANDARD FEATURES
l
Adjustable IR compensation
l
Adjustable current limit
l
Overload capacity (200% for
one minute)
l
Transient voltage protection
l
Shunt fields supply provided
l
Voltage following mode or
DC tachometer follower by
supplying ungrounded analog
input signal (0 to 12 Vdc)
l
DC tachometer feedback
l
Inhibit circuit permits start
and stop without breaking
AC lines
AC INPUT 50/60 HZ: 120 Vac SINGLE PHASE INPUT,
0 to 90 Vdc OUTPUT
H.P. MAX AC AMPS KVA MAX ARM* AMPS DC
1
⁄
8
1
⁄
4
1
⁄
3
1
⁄
2
2.0 0.24 1.6
3.5 0.42 2.7
4.4 0.53 3.4
6.5 0.78 5.0
* Minimum armature Amps: 150 mA DC
240 Vac SINGLE PHASE INPUT, 0 to 180 Vdc OUTPUT
H.P. MAX AC AMPS KVA MAX ARM* AMPS DC
1
⁄
4
1
⁄
3
1
⁄
2
3
⁄
4
1 6.5 1.56 5.0
1.8 0.42 1.4
2.2 0.53 1.7
3.3 0.78 2.5
4.8 1.15 3.7
To Order (Specify Model Number)
MODEL NO. PRICE HP RANGE INPUT OUTPUT OPTIONS
OMDC-123D-C $116 150 mA to 5.5 ADC
OMDC-123D-C-2A 127 150 mA to 5.5 ADC
OMDC-123D-C-5 191 150 mA to 5.5 ADC
1
1
to
* 120 Vac 0 to 90 Vdc
⁄
⁄
8
OMDC-125DV-C 98
OMDC-125DV-C-2A 109
OMDC-125DV-C-5 173
2
1
to 1* 240 Vac 0 to 180 Vdc
⁄
4
1
1
to
* 120 Vac 0 to 90 Vdc
⁄
⁄
8
2
1
to 1* 240 Vac 0 to 180 Vdc
⁄
4
1
1
to
* 120 Vac 0 to 90 Vdc
⁄
⁄
8
2
1
to 1* 240 Vac 0 to 180 Vdc
⁄
4
OMDC-HS125 35 Heat sink 178 L x 159 W x 35 mm D (7 x 6.25 x 1.375")
UL rating for output amps can be increased from 5.5 to 10.0 Amps with suitable external heat sink.
*
Comes complete with speed potentiometer, dial and knob and operator’s manual.
Ordering Examples: OMDC-123D-C, chassis model speed control for 0 to 30 Vdc motors, $116.
OMDC-125DV-C, dual voltage variable speed control for
control for increased Arm Amps usage, $98 + 35 = $133.
1
to 1 horsepower DC motors and OMDC-HS125, heatsink for OMDC-125 speed
⁄
8
24 Vac 0 to 20 Vdc
36 Vac 0 to 30 Vdc
24 Vac 0 to 20 Vdc
36 Vac 0 to 30 Vdc
24 Vac 0 to 20 Vdc
36 Vac 0 to 30 Vdc
D-x
MOST POPULAR MODELS HIGHLIGHTED!
—
Independently adjustable linear
accel and decel
4 to 20 mA isolated
signal follower
—
Independently adjustable linear
accel and decel
4 to 20 mA isolated
signal follower
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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