Manual - EH Wachs
Servo Drive Electric
for LCSF and EP 424
User’s Manual
E.H. Wachs
600 Knightsbridge Parkway
Lincolnshire, IL 60069
www.ehwachs.com
E.H. Wachs Part No. 11-028-INST
Copyright © 2012 E.H. Wachs. All rights reserved.
This manual may not be reproduced in whole or in part
without the written consent of E.H. Wachs.
Servo Drive Electric
for LCSF and EP 424
PURPOSE OF THIS DOCUMENT
This document explains how to operate E.H. Wachs low
clearance split frame (LCSF) and EP 424 machines using
the servo drive electric (SDE).
Each page is designed with two columns. This large column
on the inside of the page contains instructions and illustrations. Use these instructions to perform the machining operation.
In This Document
PURPOSE OF THIS DOCUMENT
EQUIPMENT DESCRIPTION
OPERATING INSTRUCTIONS
MAINTENANCE
DRAWINGS AND SCHEMATICS
The narrower column on the outside contains additional
information such as warnings, special notes, and definitions. Refer to it for safety notes and other information.
This is the safety alert symbol. It is used
to alert you to potential personal injury
hazards. Obey all safety messages that
follow this symbol to avoid possible
injury or death.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
WARNING
A WARNING alert with the
safety alert symbol indicates
a potentially hazardous situation that could result in serious injury or death.
1
Servo Drive Electric for LCSF and EP 424
CAUTION
A CAUTION alert with the
safety alert symbol indicates
a potentially hazardous situation that could result in
minor or moderate injury.
CAUTION
A CAUTION alert with the
damage alert symbol indicates a situation that will
result in damage to the
equipment.
This is the equipment damage alert
symbol. It is used to alert you to potential equipment damage situations.
Obey all messages that follow this symbol to avoid damaging the equipment or
workpiece on which it is operating.
IMPORTANT
An IMPORTANT alert with
the damage alert symbol indicates a situation that may
result in damage to the
equipment.
NOTE
NOTE
A NOTE provides supplementary information or operating tips.
This symbol indicates a user note. Notes
provide additional information to supplement the instructions, or tips for easier
operation.
Read and follow all safety guidelines and instructions in
the manual for your split frame machine.
2
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Equipment Description
EQUIPMENT DESCRIPTION
The servo drive electric (SDE) is a high-torque electric
drive, with models designed for Wachs LCSF and EP 424
machines. Each model is available in three electrical configurations. Table 1 lists the SDE models and part numbers.
Table 1: SDE Models and Part Numbers
Voltage
LCSF Part No.
EP 424 Part No.
200-240 V
11-028-402
11-028-403
380-480 V
11-028-400
11-028-401
575 V
11-028-404
11-028-405
SDE models for the LCSF have a right-angle adapter (see
Figure 1-3 below). SDE models for the EP 424 have a
straight adapter (see Figure 1-4 below).
Each SDE model is provided with wiring for its specified
electrical service.
The SDE system includes the following components:
•
•
•
cart-mounted power supply cabinet with on/off and
emergency stop buttons
electric drive motor assembly with adapter for LCSF or
EP 424
control pendant with speed controls and emergency
stop.
These components are shown in the following figures.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
3
Servo Drive Electric for LCSF and EP 424
Emergency
stop button
Machine
power button
Power switch
Cabinet locking screw
Storage tray
Figure 1-1. The photo shows the front of the control
cabinet.
Power
cable to
drive motor
Feedback
cable to
drive motor
Control
pendant
cable
Power
source in
cable
Figure 1-2. The cable connections are on the bottom
of the cabinet. Only the pendant cable is removable.
4
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Equipment Description
Figure 1-3. The SDE for LCSF machines is equipped
with a right-angle adapter. The adapter mounts
directly to the standard pinion assembly.
Figure 1-4. The SDE for the EP 424 uses a straight
adapter. The adapter mounts directly to the standard
drive mount.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
5
Servo Drive Electric for LCSF and EP 424
Decrease speed
button
Decrease speed
button
On/Off trigger
(on bottom)
Emergency Stop
button
Figure 1-5. The control pendant is used to operate the
SDE. It includes a 20 ft (6 m) cable.
OPERATING INSTRUCTIONS
Installing the SDE on the LCSF
It is recommended that you mount the SDE on the LCSF
before connecting the cables. This reduces the chance of
damaging the cables or connectors.
1. Mount the LCSF on the pipe according to the instructions in the LCSF user’s manual.
NOTE
You can remove the screws
from the pinion assembly to
mount the SDE. Engage the
square shaft in the pinion
gear, then rotate the drive so
you can install the screws.
6
2. Mount the SDE to the LCSF pinion assembly. Use a
lifting device if necessary; the drive motor assembly
has a lift eye.
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Operating Instructions
1. Engage shaft in
pinion gear. (Remove
mounting screws if
necessary.)
2. Tighten screws
through holes in
adapter.
Figure 1-6. Mount the SDE to the pinion assembly on
the LCSF.
3. Turn the SDE to engage the mounting screws in the
adapter slots. Tighten the screws securely.
Figure 1-7. Insert the mounting screws and turn the
drive to engage them in the slots. Tighten the screws
(one each side).
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
7
Servo Drive Electric for LCSF and EP 424
Installing the SDE on the EP 424
It is recommended that you mount the SDE on the EP 424
before connecting the cables. This reduces the chance of
damaging the cables or connectors.
1. Mount the EP 424 on the pipe according to the instructions in the EP 424 user’s manual.
2. Mount the SDE to the EP 424 motor adapter. Use a
lifting device if necessary; the drive motor assembly
has a lift eye.
Adapter
screws
Figure 1-8. Install the drive on the EP 424 drive
mount and secure it with the adapter screws.
3. Tighten the screws in the slots on the adapter to secure
the drive.
Connecting the Cables and Using the
Control Cabinet
NOTE
The cable is supplied from
the factory without a wall
plug. Install the appropriate
plug for your electrical service.
8
1. A power cable for the appropriate electrical service is
provided with the control cabinet. Connect it to the
electrical source.
2. Connect the power and feedback cables from the control cabinet to the drive motor assembly. Screw the
collars down to secure the connections.
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Operating Instructions
Power
cable
connector
Feedback
cable
connector
Figure 1-9. Attach the cables to the drive and tighten
the collars.
3. If the pendant cable is disconnected, attach it to its
connector on the bottom of the control cabinet.
Control
pendant
cable
Figure 1-10. Connect the control pendant cable on
the bottom of the cabinet.
Using the Control Pendant
The control pendant is enabled when the electrical system is
powered on:
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
9
Servo Drive Electric for LCSF and EP 424
•
Turn the power switch on the front of the cabinet to the
ON position.
Figure 1-11. Turn the power switch to the ON position.
•
Pull out the Emergency Stop and Machine Power buttons on the top of the cabinet.
Figure 1-12. To enable the SDE, make sure the Emergency Stop button is pulled out, then pull the Machine
Power button. The light in the center of the button will
come on to indicate power is enabled.
1. Squeeze the trigger on the control pendant to start the
LCSF. The machine will start at minimum speed.
10
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Operating Instructions
Figure 1-13. Squeeze the trigger to start the LCSF.
2. Use the Increase Speed button on the pendant to set
the operating speed. Press and hold the button while
holding the trigger until the desired speed is reached.
To slow the machine down, use the Decrease Speed
button.
Increase Speed
NOTE
The speed resets to the minimum each time you release
the trigger.
Decrease Speed
Figure 1-14. Use the speed control buttons to set the
machine’s operating speed. You must be holding the
trigger while adjusting the speed.
3. As the machine operates, continue holding the trigger
and adjust the speed as necessary using the buttons on
the control pendant. Release the trigger to stop the
machine.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
11
Servo Drive Electric for LCSF and EP 424
NOTE
4. Press the Emergency Stop button on the pendant to
immediately stop the machine and disable power.
After pressing Emergency
Stop (either on the cabinet or
the pendant), you will have to
re-enable power using the
Machine Power button on
the cabinet.
Figure 1-15. Push down the Emergency Stop button
on the pendant to stop the machine and shut down
power to the drive.
MAINTENANCE
The SDE does not require any lubrication. Mechanical components are sealed and lubricated for life.
The control cabinet has two air filters. Check these filters
periodically, and clean or replace them as necessary.
12
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Maintenance
Figure 1-16. Remove the filter cover to check or
replace the air filter. The control cabinet has 2 filters,
one on each side.
Opening the Cabinet for Electrical Service
You may need to open the control cabinet to replace fuses or
perform other service. See the electrical schematic at the
end of this document for fuse identification.
1. Turn the power switch on the cabinet to the OFF position.
WARNING
Do not open the cabinet
when power is connected to
it. Electrical shock can cause
serious injury or death.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
13
Servo Drive Electric for LCSF and EP 424
Figure 1-17.
2. Disconnect the cabinet from the power supply.
3. Loosen the screw in the cabinet door.
Figure 1-18. Loosen the screw before opening the
cabinet door.
4. Press the locking tab on the power switch down to
open the cabinet door.
14
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
Maintenance
Figure 1-19. Push down the locking tab on the switch
to open the door.
5. The fuse block is shown in fig. If necessary, replace
blown fuses.
Fuse block
Figure 1-20. The fuse block is accessible with the
cabinet door open.
6. Close the cabinet door and press it shut until the locking tab in the switch “clicks” into place.
7. Tighten the cabinet door screw.
E.H. Wachs
Part No. 11-028-INST, Rev. 0-0412
15
Servo Drive Electric for LCSF and EP 424
DRAWINGS AND SCHEMATICS
The follow pages illustrate the components and the electrical schematics of the SDE system.
16
Part No. 11-028-INST, Rev. 0-0412
E.H. Wachs
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600 Knightsbridge Parkway • Lincolnshire, IL 60069
847-537-8800 • www.ehwachs.com
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