Original Line Electric Actuator, Electric Thruster, Motor, and Driver Quick Start Manual Please read this manual carefully before implementing your Original Line Electric or Electric Thruster Actuator
Scope of this manual This instruction manual supports Bimba standard components only. If special motion control components, including but not limited to power supplies, encoders, motors, controls, and drivers, are included based on a customer’s specifications or special request, it is the customer’s responsibility to consult support materials and technical support specific to these special components provided by the third party manufacturers.
Original Line Electric Actuator, Electric Thruster, Motor, and Driver Quick Start Manual Contents 1. Actuator-only Models ...................................................................... 2 Installing your motor 2. Actuator and Motor Models ............................................................ 4 Motor specifications and wiring diagram 3. Actuator, Motor, and Driver Models ................................................ 6 a. Mount your drive ......................................................
Congratulations on purchasing an Original Line Electric actuator from Bimba. Our OLE and OLET actuators are designed, built, and tested to provide the longest life, greatest durability, highest speed, and greatest thrust per dollar. We look forward to serving your electric actuator needs with the same responsiveness and engineering expertise you are accustomed to receiving for our pneumatic products. Every OLE and OLET actuator is backed by a one-year warranty.
c. Mount motor to actuator, slip shaft into coupler. Secure motor to actuator using 4 screws provided. Allen key sizes and torque values are provided in Table 2. Be careful not to turn the coupler. Table 2 Allen Key 9/64" 9/64" 5/32" Note: Torque range is ± 10%. Actuator 75 150 350 Torque 12 in-lbs. 12 in-lbs. 35 in-lbs. d. Tighten coupler clamp screw so motor shaft is secured (refer to Table 1 for torque specification). The coupler clamps around the circumference of the motor shaft.
$ 2. Actuator and Motor Models Orange All Bimba step Org/Wht motors use the same 6HULHV 8-wire wiring color code convention, as Blk/Wht shown below. . $² Black Red Red/ Wht % ! Yel/ Wht $ Blk/Wht Org/ Wht $² Yellow %² Orange 3DUDOOHO Black Red Yel/ % Wht Figure 1 Yellow Red/Wht %² Warning: Be sure power is off before connecting or disconnecting the motor. Specifications for Bimba 8-lead 1.8 degree step motors are provided in Table 3. Winding Min.
Encoder connections for Bimba step motors are identified in Table 5. The cable provided has flying leads which can be connected to your controller. Pin No.
3. Actuator, Motor, and Driver Models You will need: • • • • • An OLE or OLET actuator with motor attached. A small flat blade screwdriver for tightening the connectors. Wires - 18 to 20 gage recommended Wire cutter/stripper An appropriate DC power supply. ! Warning: Do not apply power until all connections are made. The DRV-4 accepts power supply voltages from 24 to 48 VDC, while the DRV-8 accepts power supply voltages from 24 to 75 VDC.
! Warnings: • Do not install drive where ambient air is more than 104° F. • Do not install drive where there is no air flow • Do not install drive where drive can get wet. • Do not install drive where electrically conductive material can fall on the driver. • Drives must be mounted at least one-half inch apart. b. Connect the DC power supply to the driver -- Do not apply power ! Warning: Observe proper polarity when connecting wires. I. Make sure the power supply is not on.
d. Set rotary switch for the motor selected (This is normally set by the factory for the motor specified.) Turn the rotary switch to the number that represents the motor you have. This sets current and antiresonance settings for optimum performance. OLE -75 -75 -150 -350 Bimba Motor Frame 17 frame 23 frame 23 frame 34 frame Option Code Setting P1, E1, Y1, Z1 P2, E2, Y2, Z2 P2, E2, Y2, Z2 P3, E3, Y3, Z3 5 7 6 F e.
f. Set load inertia Switch 3 chooses between two load inertia ranges. • Values are multiples of rotor inerta (see Table 3) • Use 0-4x for smaller (0.2" or smaller) leads and shorter strokes (factory default) • Use 5-10x for longer (0.25" or larger) leads and greater loads • 5-10x may reduce performance. This information is used in the anti-resonance configuration. 3 3 5-10X 0-4X g.
Microstepping provides smoothest rotation. However, a faster step pulse rate (frequency) is required for a given RPM as shown in Table 8 below. Pulses per Degrees per revolution step 200 1.8 400 0.9 2000 0.18 5000 0.072 12800 0.028 20000 0.018 Table 8 Pulse frequency required for 300 RPM 1,000 Hz 2,000 Hz 10,000 Hz 25,000 Hz 64,000 Hz 100,000 Hz Pulse frequency required for 3000 RPM 10,000 Hz 20,000 Hz 100,000 Hz 250,000 Hz 640,000 Hz 1,000,000 Hz h.
Connection Examples: STEP & DIR Indexer with Sourcing Outputs COM DIR- DIR DIR+ STEP- STEP DRV STR STEP+ Connecting to indexer with Sourcing Outputs Indexer with Sinking Outputs +5V OUT DIR+ DIR DIRSTEP+ STEP STR DRV STEP- Connecting to Indexer with Sinking Outputs Indexer with Differential Outputs DIR+ DIR+ DIR- DIR- STEP+ STEP+ STEP- STEP- STR DRV Connecting to Indexer with Differential Outputs (Many High Speed Indexers have Differential Outputs) 11
Connection Examples: EN The 5-24 V EN input disables power to the motor.
j. FAULT output The DRV drives feature a digital FAULT output. This output closes to signal a fault condition. This output can be used to drive LEDs, relays and the inputs of other electronic devices like PLCs. The “+” (collector) and “-” (emitter) terminals of the output transistor are available at the connector. This allows you to configure the output for current sourcing or sinking. Diagrams of each type of connection follow. ! Do not connect the output to more than 30 VDC.
k. Set step pulse type Most indexers and motion controllers provide motion commands in the “Step and Direction” format. The Step signal pulses once for each motor step and the direction signal commands direction. However, a few PLCs use a different type of command signal: one signal pulses once for each desired step in the clockwise direction (called STEP CW), while a second signal pulses for counterclockwise motion (STEP CCW).
m. Technical specifications Amplifier Digital MOSFET. 20 kHz PWM. Suitable for driving two phase and four phase step motors with four, six or eight leads. Supply voltage: DRV-4 24-48 VDC Under voltage alarm: 20 VDC Over voltage shutdown: 60 VDC DRV-8 24-75 VDC Under voltage alarm: 20 VDC Over voltage shutdown: 85 VDC Motor current: 0.5 to 7.8 amps/phase peak of sine (DRV8) 0.25 to 4.5 amps/phase peak of sine (DRV4) Digital Inputs Optically isolated, 5 - 24V logic.
n. Alarm codes In the event of a drive fault or alarm, the green LED will flash one or two times, followed by a series of red flashes. The pattern repeats until the alarm is cleared. You may clear the alarm by cycling power off and then on.
Troubleshooting Guide and FAQ Problem: Actuator does not move when step motor is energized. Solution: Step motor windings may be shorted. Use an Ohmmeter to measure the resistance between pairs of windings (should be infinite) and between the leads of each winding (should be the same for each winding). Use your motor’s wiring diagram to identify the correct leads. If windings are shorted, the motor must be replaced. Problem: Actuator operation is stiff, seems to be binding.
Inspect the motor and rotate the shaft when the motor is not connected. If you feel any rubbing or there are any dents on the motor, there is probably an alignment problem and the motor may need to be replaced. If the rotor was removed from the stator, it could have been demagnetized. The motor would need to be replaced. If you still cannot solve the problem, the size of your power supply (voltage output) may need to be greater.
Problem: The motor does not move when a step signal is sent to the drive. Solution: If the enable input is on (low with respect to a 5-24 volt signal), it will disable the motor. Do not connect anything to the enable input if there is no reason to disable the motor. Problem: The motor will not run slow enough with a potentiometer connected to my drive (it has an internal oscillator). Solution: Some drives’ internal potentiometers cannot be adjusted to zero speed.
Bimba Manufacturing Company Monee, Illinois 60449-0068 Tel: 708.534.8544 Tech Support: 800.44BIMBA Fax: 708.235.2014 support@bimba.com www.bimba.
