Watson-Marlow OEM User Manual
Page 9
9
7.2 Procedure
To calibrate the maximum and minimum speeds, the following procedure should be followed:
Top speed
(This adjustment should be carried out with the drive under the duty load)
Set the “Speed control” potentiometer to maximum or the “Control Signal” input to 5V DC. Adjust the “motor
voltage feedback” (P2) potentiometer to give the required maximum output shaft speed.
Note: Do not exceed 110rpm for the 100rpm motor, 70rpm for the 65rpm motor, 55rpm for the 50rpm motor, 11
rpm for the 10rpm motor, 5rpm for the 4rpm motor.
Circuit gain
Set the “Speed Control” potentiometer or the “Control Signal” input to give approximately 10% of the maximum
speed setting. Adjust the “Torque Preset” potentiometer (P1) until the output shaft speed remains constant
when the normal load is applied.
Note: The motor will hunt if too much torque is set.
Minimum speed
Set the “Speed Control” potentiometer or the “Control Signal” input to the minimum
required setting. Adjust the “Minimum Speed Preset” (P3) potentiometer until the
output shaft stops (or rotates at the desired minimum speed).
8.0 Components
Reference
Watson-Marlow
Description
RS part
part number
number
C5 (102)
CE0159
1000mF, 35V
844-068
C5 (313)
CE0155
4700mF, 63V
105-329
J1
US0051
32-way connector
467-453
J2
SL0052
Molex housing
467-605
SL0024
Molex header
467-554
SL0012
Molex terminal
467-598
J3
SL0052
Molex housing
467-605
SL0024
Molex header
467-554
SL0012
Molex terminal
467-598
D3
SD0020
IN4005
261-182
D4 (102)
SD0020
IN4005
261-182
D4 (313)
******
P600D
183-4450
D5 (102)
SD0020
IN4005
261-182
D5 (313)
******
P600D
183-4450
P4
RV0054
Preset
162-221
Q2 (313)
ST0019
TIP141
294-839
Q3
******
TIPP116
638-627
R13
RC0142
100k
Ω
148-972
R14 (20-25V) RC0042
1k 1/2W
148-506
R14 (25-30V) RC0094
1k5 1/2W
148-540
R18 (20-25V) RC0156
180
Ω
132-315
R18 (25-30V) RC0103
270
Ω
132-359
R19
RC0142
100k
Ω
149-972
RL1
******
Relay 12V DC
376-149
TF0008
Transformer 12VA
207-655
******
Transformer 100VA
207-302
SD0035
LED
590-474
RV0020
Potentiometer 4k7/5k
162-827
Note: Re-check the
sequence as interaction
may occur between
adjustments.