Graco 332564B Inactive Pump Flush and Prime Sequences, Flush Pump Command

Operation Using a Programmable Logic Controller (PLC)

Inactive Pump Flush and Prime Sequences

Write Flush Sequence # (1-5) to Output Register 01

Write

Flush Pump Command

(1,3,5,7) to Input Register 02

Is requested pump status* = Standby?

(Output Register* = ‘1’)

YES

Pump is flushed using

assigned sequence number.

Pump Status = Flushing (Output Register* = ‘3’)

NO

NOTE: Be sure to read to appropriate Output Register* for the desired pump status: Register 01 - Pump 1 Register 02 - Pump 2 Register 03 - Pump 3 Register 04 - Pump 4

Pump is either Off or Busy (Output Register* = ‘0’ or ‘2’)

Busy refers to a pump that is currently involved in a mixing operation. No action taken.

Invalid request.

No action taken.

Write Prime Material #

(1-34) to Output Register 01

Write

Prime Pump Command

(2,4,6,8) to Input Register 02

Is requested pump

NO status* = Standby? (Output Register* = ‘1’)

YES

	Is selected material valid
NO
	for requested pump?
		YES

Pump is primed using

assigned material.

Pump Status = Priming (Output Register* = ‘4’)

NO Is Flush complete?

YES

Pump is returned to Standby.

Pump Status = Standby (Output Register* = ‘1’)

NO Is Prime complete?

YES

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