LEESON NEMA 4x SCR Control: 174103 - Manual (Page 2)

SIGNAL / MANUAL SWITCH
The signal/manual switch on
the case cover is factory-wired
to Pins 1, 2, & 3 on SO501. S T E P # 4
WIRE THE CONTROL
AS SHOWN THROUGH
THE CONDUIT HOLES
IN THE BOTTOM PLATE.
S T E P # 5
REPLACE SIX SCREWS
ON FRONT CASE &
FIVE SCREWS ON
BOTTOM PLATE.
FIELD OUTPUT
CONNECTIONS
The field output is for shunt
wound motors only. Do not
make any connections to
F1 and F2 when using a
permanent magnet (PM) motor.
115 VAC
LINE
VOLTAGE
INPUT
(115 or 230 VAC)
EARTH
GROUND
(GREEN
SCREW)
MOTOR
ARMATURE
RSH = 1000 OHM for 4 - 20 mA
RSH = 250 OHM for 10 - 50 mA
RSH = NOT USED for 1 - 5 mA
RSH = NOT USED for 0 - 10V signal
TERMINAL 2
+ 0 - 10V
SPEED ADJUST
SIGNAL INPUT
TERMINAL 3
(-) COMMON
RSH
+
230 VAC
FIELD
OUTPUT
1
2
3
1
2 3 4
TQ LIMIT ACCEL DECEL
IR COMP MIN. SPD MAX SPD
L2 FRM SW L1
L2 TO SW L1
L2-115
F1 F2
L2-230
L1
F501
MOV503
T501
F502
MOV502 MOV501
R502
C503
SW501
230-115
A2 A1
A2 TO SW A1
A2 FRM SW A1
IC501
IC502 C501
C502
R501
SO501 INHIBIT
S3
S2
S1
SW502
180-90
C504
PL501
SO501
TB501
PL502
R9
R6
R2
R4
R3
R7
R5
R8
Q2
IC1
C4
T501
D502
D501
C3
2
3
1
1 2 3 4
SIG MAX SIG MIN.
TQ LIMIT ACCEL DECEL
IR COMP MIN. SPD MAX SPD
PL501
SO501
TB501
R9
R6
R2
R1
R4
R3
R7
R5
R8
Q2
Q1
IC1
C4
C2
T501
P502 P501
D502
D501
C3
PCM
CARD
C2
R
Q2
C O N N E C T I O N S
Manual Operation
1. Set the Signal/Manual Switch to
the MANUAL position.
2. Set the speed adjust dial to “0”
(full CCW).
3. Apply AC line voltage.
4. Set the POWER switch to the ON
position.
5. Slowly advance the speed adjust
dial CW. The motor slowly
accelerates as the dial is turned
CW. Continue until the desired
speed is reached.
6. To coast the motor to a stop, turn
the speed adjust dial to “0” or set
the POWER switch to the OFF
position.
Signal Operation
1. Set the Signal/Manual Switch to
the SIGNAL position.
2. Apply AC line voltage.
3. Set the POWER switch to the ON
position.
4. Apply minimum current or voltage
signal. Adjust the SIG MIN trimpot
to achieve the desired minimum
motor speed.
5. Apply maximum current or voltage
signal. Adjust the SIG MAX
trimpot to achieve the desired
maximum motor speed.
O P E R A T I O N
L E E S O N E l e c t r i c
w w w . l e e s o n . c o m
2100 Washington Street, Grafton, WI 53024-0241, USA
Phone: 262-377-8810 Fax: 262-377-9025
Document Number: 250-0388, Revision 0; Printed in the U.S.A. - May 2004
Copyright 2003 by LEESON Electric - All rights reserved. No part of this document may be reproduced or transmitted in any form without written permission from
LEESON Electric. The information and technical data in this document are subject to change without notice. LEESON Electric makes 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. LEESON Electric and its
Divisions assume no responsibility for any errors that may appear in this document and make no commitment to update or to keep current the information in this
document.
kc0504