D-Series Syringe Pumps - Isco

D Series Syringe Pumps
Section 4 Theory of Operation
DANGER
RISK OF ELECTRIC SHOCK -
DISCONNECT THE ELECTRIC POWER BEFORE
SERVICING. ONLY TRAINED SERVICE
PERSONNEL MAY REMOVE THE CASE TOP.
DANGER
RISQUE DE CHOC ÉLECTRIQUE.
COUPER L´ALIMENTATION AVANT LA
RÉPARATION. L´USAGER NE DOIT PAS
DÉMONTER L´INSTRUMENT OU DÉRANGER LE
MÉCANISME DEDANS. ADRESSER LA
REPARATION SEULEMENT AUX TECHNICIENS
COMPÉTENTS.
4.1 Introduction The following sections describe the electrical theory of operation
for the D Series syringe pumps and controller. These descriptions
are included to aid you in troubleshooting your instrumentation.
To view the schematic drawings referred to in this section, first
find the serial number for your unit. Then go to our Web site at
www.isco.com. In the left column, click Service & Support. In
the center of the page, click Fast, thorough factory repair
service. Find the blue heading Circuit Schematics and click
the indicated link. After you enter your serial number in the field
provided, you will be able to view the schematics online. If you
need assistance, or don’t see the correct schematic for your specific
unit, contact our service department.
4.2 Pump Controller The pump controller is a microprocessor-based user interface and
motor control system. The user interface consists of a keypad
label; a four-line, 40 character display; and various digital and
analog interface connectors, located on the rear panel of the
instrument. Up to three syringe pump modules of various capacities
can be operated independently or in several coordinated
configurations.
Power Supplies
The pump controller, hereinafter referred to as the controller,
does not contain a power supply. Each pump connected to the
controller contains a power supply but the controller is powered
4-1