No Controller Operation - Graco G3 Series Instructions Manual

No Controller Operation

No Controller Operation
The G3 Pump can be controlled using an external, user
supplied, power source and controller.
Refer to the Typical Installation diagrams provided on
page 8 for correct location of the required pump ground
wire and fuses.
NOTE:
• When using an external power source and control-
ler, Pump ON (Run) Time should be set for no lon-
ger than 30 minutes.
• In most cases, Pump OFF (Rest) Time should be
twice as long as Pump ON (Run) time. If alternative
ON / OFF times are required, contact Graco Cus-
tomer Service for assistance.
Typical Low Level Output Response with Low Level Fluid
Closed
Contact
Position
Open
F . 10
IG
28
Low Level Output Option
Some G3 pumps without controllers include a Low Level
Output Option. When the fluid level has reached a low,
warning level, PINS 3 and 4 momentarily close (1 time
per paddle revolution), sending the signal to the control-
ler that the fluid has reached a low level. For PIN 3 and 4
locations and wiring information, see the Low Level Out-
puts diagram, page 19.
To ensure a low level condition has been met, 3 or more
low warning level triggers must be detected within 1 min-
ute or less.
NOTE: A low level warning is triggered when the con-
troller detects PINS 3 and 4 have momentarily closed.
See F . 10 for an illustration of a Typical Low Level Out-
IG
put Response with Low Level Fluids.
200 ms
3 s
3A0414B