E.H. Wachs MDSF Manual de usuario
MDSF Servo Electric Drive
User’s Manual
Copyright © 2022 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.
E.H. Wachs
600 Knightsbridge Parkway
Lincolnshire, IL 60069
www.ehwachs.com
E.H. Wachs Part No. 69-SERVO-MAN-01
Rev. A, July 2022
MDSF Servo Electric Drive
69-SERVO-MAN-01 E.H. Wachs Company
E.H. Wachs Part No. 69-SERVO-MAN-01, Rev. A 1
MDSF Servo Electric
Drive
PURPOSE OF THIS DOCUMENT
This document explains how to operate the E.H. Wachs
MDSF servo electric drive. It describes the equipment com-
ponents and operating features, and includes a reference of
error codes and troubleshooting.
The servo electric drive can also be used to operate the EP
424 end prep machine, using an optional adapter (part no.
81-180-00).
Each page is designed with two columns. This large column
on the inside of the page contains instructions and illustra-
tions. Use these instructions to perform the machining oper-
ation.
The narrower column on the outside contains additional
information such as warnings, special notes, and defini-
tions. Refer to it for safety notes and other information.
A WARNING alert with the
safety alert symbol indicates
a potentially hazardous situa-
tion that could result in seri-
ous injury or death.
WARNING
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.
In This Document
PURPOSE OF THIS DOCUMENT
EQUIPMENT DESCRIPTION
SETUP AND CONNECTIONS
OPERATING INSTRUCTIONS
MAINTENANCE
MDSF Servo Electric Drive
2 Part No. 69-SERVO-MAN-01, Rev. A E.H. Wachs
A CAUTION alert with the
safety alert symbol indicates
a potentially hazardous situa-
tion that could result in
minor or moderate injury.
A CAUTION alert with the
damage alert symbol indi-
cates a situation that will
result in damage to the
equipment.
An IMPORTANT alert with
the damage alert symbol indi-
cates a situation that may
result in damage to the
equipment.
A NOTE provides supple-
mentary information or oper-
ating tips.
Read and follow all safety guidelines and instructions in
the manual for your MDSF or EP 424 machine.
CAUTION
CAUTION This is the equipment damage alert
symbol. It is used to alert you to poten-
tial equipment damage situations.
Obey all messages that follow this sym-
bol to avoid damaging the equipment or
workpiece on which it is operating.
IMPORTANT
NOTE NOTE
This symbol indicates a user note. Notes
provide additional information to supple-
ment the instructions, or tips for easier
operation.
Equipment Description
E.H. Wachs Part No. 69-SERVO-MAN-01, Rev. A 3
EQUIPMENT DESCRIPTION
The servo electric drive provides high operating torque
through its full speed range. Electric power requirements
are 380-480 VAC, 50/60 Hz.
The system includes the following components:
• power supply cabinet with on/off switch and electronic
error code display panel
• electric drive motor assembly with adapter for mounting
to MDSF pinion housing
• control pendant with start/stop, speed control, and emer-
gency stop
• power cable
• storage/shipping case
• optional drive adapter (81-180-00) for EP 424.
These components are shown in the following figures.
Figure 1-1. The photo shows the components of the
servo electric drive.
Power supply
cabinet
Power
cable
Control pendant
with cable
Motor assembly
with cable
MDSF Servo Electric Drive
4 Part No. 69-SERVO-MAN-01, Rev. A E.H. Wachs
Figure 1-2. The drive system is provided in a custom
storage/shipping case. Keep all components stored in
the case when not in use.
Specifications
Table 1: Servo Electric Drive Specifications
Power Requirements 380-480 VAC, 50/
60 Hz
Component Weights
Power cabinet 40.8 lb (18.5 kg)
Motor assembly
with cable 40.2 lb (18.3 kg)
Pendant with cable 2.6 lb (1.2 kg)
Cable lengths
Power 12 ft (3.7 m)
Pendant 12 ft (3.7 m)
Motor power and
encoder 15 ft (4.6 m)
Operating speed/range (motor shaft) 0-90 RPM
Power 4.5 HP
Power
cable to
drive motor
Feedback
cable to
drive motor
Control
pendant
cable
Power
source in
cable
Setup and Connections
E.H. Wachs Part No. 69-SERVO-MAN-01, Rev. A 5
SETUP AND CONNECTIONS
Installing the Motor on the MDSF
1. Mount and position the MDSF on the pipe according
to the instructions in the MDSF user’s manual.
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.
2. Mount the motor to the MDSF pinion assembly. Use a
lifting device if necessary; the drive motor assembly
has a lift handle.
• Insert the motor drive shaft all the way into the pin-
ion spline, engaging the face gear.
• Snap the motor mounting clamp handle over the
motor adapter ring.
Figure 1-3. The photo shows the motor mounting
interface to the MDSF.
Installing the Motor on the EP 424
1. Mount the EP 424 on the pipe according to the instruc-
tions in the EP 424 user’s manual.
2. Mount the optional adapter (81-180-00) onto the
motor shaft.
3. Attach the motor to the drive mount on the EP 424.
NOTE
Drive shaft
Face gear
Adapter ring
MDSF Servo Electric Drive
6 Part No. 69-SERVO-MAN-01, Rev. A E.H. Wachs
Connecting the Cables and Using the
Control Cabinet
The cable is supplied from
the factory without a wall
plug. Install the appropriate
plug for your electrical ser-
vice.
1. A power cable for the appropriate electrical service is
provided with the control cabinet. Connect it to the
back of the control cabinet.
• NOTE: Do not plug the power cable into the elec-
trical source until you have the machine and
drive mounted and ready to operate.
2. Connect the power (orange) and feedback (gray)
cables from the drive motor assembly to the back of
the control cabinet.
3. Attach the pendant cable to the connector on the con-
trol cabinet.
Figure 1-4. Attach the cables to the control cabinet as
shown.
NOTE
Power cord
connector
Pendant connector
Motor
power
(orange)
Motor
encoder
(gray)
Operating Instructions
E.H. Wachs Part No. 69-SERVO-MAN-01, Rev. A 7
Figure 1-5. Press the tab as shown to unlock the con-
nector cover.
OPERATING INSTRUCTIONS
Using the Control Pendant
The control pendant is enabled when the electrical system is
powered on.
When not operating the drive, push in the Emergency Stop
button to prevent accidentally engaging the motor.
To re-enable operation, pull out the Emergency Stop button,
then press the Reset button.
MDSF Servo Electric Drive
8 Part No. 69-SERVO-MAN-01, Rev. A E.H. Wachs
Figure 1-6. Use the control pendant to operate the
drive.
Figure 1-7. Squeeze the hold-to-run trigger to operate
the motor. Releasing the trigger will stop the motor; to
re-start, hold the trigger and press the Start button.
Operating the Drive
1. Make sure the cables are connected to the control cab-
inet:
• power source
• motor power (orange)
Emergency Stop
—push to stop
—pull to release
Speed control
—turn dial to
adjust speed
Push Reset after
releasing Emer-
gency Stop
Push Start to start
motor while hold-
ing trigger
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