Omega Products 1240i User Manual

PROGRAMMABLE STEP MOTOR
INDEXER/DRIVE

MICROSTEPPING 1.2 A, 40 Vdc

1240i

lPrecise Pulse Width Modulation

Switching Amplifiers Providing
Up to 1.2 A per Phase and
Microstepping to 50,800 Steps
Per Revolution

lAccepts 12 to 42 Vdc

Power Supply

lPowerful, Flexible,

Easy to Use Indexer

lConnects by a Simple Cable

to Your PC for Programming
(Cable Included)

TM

lMicrosoft Windows

-Based
Software for Easy Setup and
Programming

lEight Inputs for Interacting with

the User and Other Equipment

lThree Outputs for Coordinating

External Equipment

lExternal Trigger I/O is Optically

Isolated, 5 to 24V, Sinking or
Sourcing Signals; PC/MMI
Port is RS232

l76.2 x 101.6 x 16.5 mm

(3 x 4 x 0.65") Overall
Dimensions

lOptional Man Machine Interface

(MMI) Allows Operator to Enter
Distances, Speeds, Cycle
Counts and More

lCE Compliant

The 1240i is a programmable step
motor driver suited for a wide range of
motion control applications. It includes a
sophisticated controller integrated with a
48-watt microstepping amplifier. The
1240i includes easy to use software for the
rapid development of stand-alone motion
control programs. The 1240i can also be
commanded in real time from a host PC or

PLC, using the Si Command Language™.
For multi-axis applications, up to four drives
(stepper or Servo) can be networked using a
single SiNet™ Hub 444. The 1240i includes
8 optically isolated programmable inputs for
triggering, branching, position sensing and
end of travel detection. 3 optically isolated
programmable outputs can send signals to
other electronic devices and activate relays.

SPECIFICATIONS

Amplifiers: Dual H-bridge, 3 state, pulse

width modulated (PWM) switching at
25 KHz. 0.2 to 1.2 A/phase output
current, software selectable; 48 watts
maximum output power; automatic
idle current reduction (software
programmable) reduces current to
motor when idle; minimum motor
inductance is 0.8 mH

Power Supply: Accepts 12 to 42 Vdc
power supply, 1.2 A typical max load

Inputs: 5 to 24 Vdc, optically isolated;
2200 Ω internal resistance; can be
configured for sinking (NPN) or
sourcing (PNP) signals

Outputs: Optically isolated; 5 to 24 Vdc,
100 mA max

Microstepping: 13 software selectable
resolutions; steps per revolution with

1.8° motor: 2000, 5000, 10,000,
12,800, 18,000, 20,000, 21,600,
25,000, 25,400, 25,600, 36,000, 50,000,
50,800; waveform: pure sine

Motion Update: 12,800 Hz
Physical: Constructed on 2 mm

(0.063") thick printed circuit board;
four mounting holes, 4 mm
(0.156") diameter

Overall size: 76.2 x 101.6 x 16.5 mm
(3 x 4 x 0.65")

Weight: 68.3 gm (2.4 oz)
Ambient Operating Temperature:

0 to 50°C (32 to 122°F)
Connectors: European style screw

terminal blocks
Power Supply and Motor: 6 position
Signal Input/Output: 19 position

Wire Size: 16 to 28 AWG
Agency Approvals: CE compliant to

EN55011A, EN50082-1(1997)

1240i shown close
to actual size.

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motor phase A

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TIMIL WCC

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Power

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I/O connector

inputs 1,2,3,4

jog cw
jog ccw
cw limit

ccw limit
out 1,2,3

Power/motor

connector

DC power supply

motor

Power LED

Mounting hole (1 of 4)

PC/MMI

connector

Always use the blue & white

Applied Motion screwdriver

with these connectors.

Larger screwdrivers may remove

the plastic dimples that prevent

the screws from falling out.

38

(0.150")

4x Ø.156

2(0.062")

MECHANICAL OUTLINE

94

(3.70")

69

(2.70")

102

(4.00")

76

(3.00")

18(0.70")

max

Dimensions: mm (inch)
Ø = diameter

Software
Free with
purchase!

Program using

the Si Simple

Indexer software

or the SCL

command

language

ACCESORIES INCLUDED

Programming software
Programming cable

OPTIONAL ACCESSORIES

Power Supply (Required for Drive Operation):
Recommended: OMPS150A24, 24 Vdc, 6.3 A
Multi-Axis Systems:
Hub 444: Network up to 4 drives

Operator Interface:
MMI-01: Stand-alone operation

Si Programmer

TM

OMPS150A24
shown smaller than
actual size. Visit
omega.com/ps_series

MMI-01

HUB 444 with DIN rail
shown smaller than actual
size. Visit omega.com/hub444

shown smaller than

actual size. Visit

omega.com/mmi-01

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