EC2 sCR Adjustable Speed Drives for DC Brush

EC2 sCR Adjustable Speed Drives for DC Brush
EC2
sCR Adjustable Speed Drives for DC Brush Motors
LINE INPUT
115 VAC INPUT
POWER INPUT
L2
SCR502
D503
D502
D501
Connect the AC line power to terminals L1 and L2.
SCR501
LINE FUSE
A1
FUSING
+
POWER
115 VAC: FUSE L1 (HOT SIDE)
EC2 drives require an external fuse for protection. Use fast
acting fuses rated for 250 VAC or higher, and
approximately 150% of the maximum armature current.
Fuse only the HOT line, connected to L1 and leave L2
unfused.
MOTOR
INHIBIT HEADER
FUSE
L1
L1
IR COMP
S1
S2
S3
INHIBIT
MAX SPD
Short the INHIBIT pins to coast the motor to stop. Open
the INHIBIT terminals to accelerate the motor to set speed.
CUR LIMIT ACCEL/DECEL
Twist the inhibit wires and separate them from powercarrying wires or sources of electrical noise. Use shielded
cable if the inhibit wires are longer than 18 inches (46 cm).
If shielded cable is used, ground only one end of the shield
to earth ground. Do not ground both sides of the shield.
A2
MIN SPD
I NHI B I T TE RMI NA LS
SHORT THE INHIBIT TERMINALS
TO COAST TO A STOP.
10K OHM
SPEED ADJUST
POTENTIOMETER
OPEN THE INHIBIT TERMINALS
TO ACCELERATE TO SET SPEED.
D I M E N S I O N S
All dimensions in inches [millimeters]
CW
T RIM M E R PO T
R A N GE S
MIN SPEED
0 - 35 VDC
MAX SPEED
45 -120 VDC
IR COMPENSATION
0 - 15 V
CURRENT LIMIT
0 - 18 A
ACC/DEC
0.5 - 8 SEC.
S P E C I F I C A T I O N S
AC Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 VAC, single phase
Horsepower Range with 115 VAC applied * . . . . . . . . . . . . . . . . . . . . . . .1/8 - 1/2 HP
Maximum Armature Current * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ADC
Form Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.37 at base speed
Analog Input Voltage Range
(signal must be isolated; S1 to S2): . . . . . . . . . . . . . . . . . . . . . . . . . . .0 - 6 VDC
Input Impedance (S1 to S2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200K ohms
Load Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1% base speed or better
* Double maximum armature current and horsepower when drive is mounted on
heatsink part number 223-0159.
0.188 [5]
SCR502
D503
D502
SCR501
A1
POWER
2.64 [67]
1.75 [44]
L1
S1
S2
S3
14300 De La Tour Drive - South Beloit, IL 61080;
Phone: (800) MINARIK (646-2745); Fax: (815) 624-6960
Document Number 250-0354, Revision 3; Printed in the U.S.A. – September 2003
HEIGHT: 1.41 [35.8]
Copyright 2003 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. mvd090803
D501
L2
3.80 [97]
4.30 [109]
I N H I BI T
A2
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