Minarik MAC Series Bedienungsanleitung
USER’S MANUAL
Models:
MAC03-115AC
MAC06–115AC
MAC03–D240AC
MAC06–D240AC
Variable-frequency drives for 3-phase AC motors
MAC Series
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II
Copyright 1999 by
Minarik Corporation
All rights reserved. No part of this manual may be reproduced or transmitted in any
form without written permission from Minarik Corporation. The information and
technical data in this manual are subject to change without notice. Minarik
Corporation and its Divisions make no warranty of any kind with respect to this
material, including, but not limited to, the implied warranties of its merchantability
and fitness for a given purpose. Minarik Corporation and its Divisions assume no
responsibility for any errors that may appear in this manual and make no
commitment to update or to keep current the information in this manual.
Printed in the United States of America.
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Safety Warnings
• This symbol mdenotes an important safety tip or warning.
Please read these instructions carefully before performing
any of the procedures contained in this manual.
• Have a qualified electrical technician install, adjust and service
this equipment. Follow the National Electrical Code and all
other applicable electrical and safety codes, including the
provisions of the Occupational Safety and Health Act (OSHA),
when installing equipment. DO NOT INSTALL, REMOVE,
OR REWIRE THIS EQUIPMENT WITH POWER
APPLIED.
• Reduce the chance of an electrical fire, shock, or explosion by
proper grounding, over-current protection, thermal protection,
and enclosure. Follow sound maintenance procedures.
• It is possible for a drive to run at full speed as a result of a
component failure. Minarik strongly recommends the
installation of a master switch in the AC power input to stop
the drive in an emergency.
• This drive is isolated from earth ground. Circuit potentials are
at 115 VAC or 230 VAC above earth ground. Avoid direct
contact with the printed circuit board or with circuit elements to
prevent the risk of serious injury or fatality. Use a non-metallic
screwdriver for adjusting the calibration trimpots.
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Contents
Safety Warnings i
Illustrations iv
Tables v
General Information vi
Specifications 1
Dimensions 3
Installation 5
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Shielding guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Heat sinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Speed adjust potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cage-clamp terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power, Fuse and Motor Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Signal and Optional Switch Connections . . . . . . . . . . . . . . . . . . . . . . . . . .12
Operation 13
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
To reverse motor direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
To brake the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
To coast the motor to a stop without disconnecting power . . . . . . . . . . . . .16
I²T trip operation (class 10 characteristics) . . . . . . . . . . . . . . . . . . . . . . . .16
Drive thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Thermal protection of the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Line starting and line stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
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Calibration 19
Warning! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Max Frequency DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Calibration Procedure Setup for 60 Hz Motors: . . . . . . . . . . . . . . . . . . . . .23
MIN SPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
MAX SPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
TQ LIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
SLIP COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
TQ BOOST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
ACCEL/DECEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Accel Torque Boost Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Application Notes 29
Thermal Protection Switch Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Decelerate to minimum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Decelerate to minimum with DC injection braking . . . . . . . . . . . . . . . . . . .31
Independent adjustable speeds with . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
FWD-REV switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
RUN/JOG switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Single speed potentiometer control of multiple motors . . . . . . . . . . . . . . .34
Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Troubleshooting 37
Warning! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Before troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Clearing LED fault indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Unconditional Warranty inside back cover
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Illustrations
Figure 1. Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Figure 2. Speed Adjust Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 3. Cage-Clamp Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 4. Power and Motor Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Figure 5. Signal and Optional Switch Connections . . . . . . . . . . . . . . . . . . .12
Figure 6. Thermal Overload Switch with Optional Enable/Disable Switch . .17
Figure 7. Calibration Trimpot Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 8. DIP Switch Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 9. Thermal Overload Protection Switch Installation . . . . . . . . . . . . . .29
Figure 10. Thermal Overload Protection Switch Installation With
Optional Enable/Disable Switch . . . . . . . . . . . . . . . . . . . . . . . .29
Figure 11. Run/Decelerate to Stop Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 12. RUN/BRAKE Switch with Optional Enable/Disable Switch . . . . . .31
Figure 13. Independent Adjustable Speeds . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 14. RUN/JOG Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Figure 15. Single Speed Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Figure 16. Reversing Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 17. Diagnostic LED Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
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v
Tables
Table 1. Max Frequency DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . .22
Table 2. Torque Boost Calibration DIP Switch Settings . . . . . . . . . . . . . . .28
Table 3. Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
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vi
General Information
The Minarik AC (MAC) Series are solid-state, microprocessor-
based, variable-frequency AC motor drives. With a 120 or 240
VAC, 50/60 Hz, single-phase input, MAC drives are factory
calibrated for an output of 0 to 60 Hz*. They will operate any
1 HP or smaller, 115- or 208/230-volt†, three-phase AC induction
motor through a speed range of zero* through nameplate speed.
They can be user calibrated for 0 through 400 Hz output.
Although MAC inverters can operate over a 100:1 speed range,
most motors will operate over a 10:1 speed range with constant
torque at 0* to 60 Hz and constant horsepower above 60 Hz.
(Inverter-duty motors may operate satisfactorily over a 20:1 speed
range, while vector-duty motors may operate satisfactorily over a
30:1 speed range.) Some motors can be satisfactorily operated at
speeds as low as 100 rpm (speed range 25:1). Below 100 rpm,
some motors may show signs of “stepping” or “cogging”, or they
may run warmer.
*Actual minimum frequency will depend on motor type and the load to which it is
connected.
†
Motor voltage should be matched to the nominal AC line voltage (e.g., 208VAC
motor for 208VAC nominal input; 115VAC motor for 115VAC nominal input).
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viiGeneral Information
MAC Series drives feature solid-state reversing with adjustable
acceleration and deceleration. They also feature adjustable
current limit and I²T class 10 current trip to protect the motor, the
control and the driven machine from damage caused by motor
overload or machine jamming. The MAC may also interface with
motor thermal protection through the enable circuit.
The MAC is very efficient when the two (2) torque boost settings
are properly adjusted; the accel torque boost is applied only
during acceleration. Other drives, with only one torque boost
setting, can cause motor overheating by applying too much during
steady-state operating conditions.
Caution should be taken when operating fan-cooled motors at low
speeds because their fans may not move sufficient air to properly
cool the motor. Minarik recommends “inverter-duty” motors
when the speed range is beyond 6:1.
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MAC Series Features
• Microprocessor-based
• Solid-state circuitry
• Adjustable minimum and maximum speed
• Adjustable acceleration and deceleration
• Solid-state reversing
• Adjustable current limit
• I²T current trip (class 10)
• Adjustable torque power boost during acceleration
• Adjustable voltage boost at low speeds
• Adjustable slip compensation
• Multiple motor operation
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250-0262 rev 1.qxd 6/30/99 10:36 AM Page viii
Andere Handbücher für MAC Series
1
Dieses Handbuch passt für folgende Modelle
4
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