Ransburg DynaFlow User Manual - Manual (Page 26)

LN-9400-00.9
DynaFlow TM User Manual - Installation
22
GUN INPUTS (Continued)
Description
Total Hold
Transparent/
PID
Analog Hold
Load
External Fault/
Enable
Spare Digital
Input
Analog Set
Point
Spare Analog
Input
This signal will stop all totals for the CHANNEL as long as the signal is supplied, even if the
GUN is running and there is fluid flow. The non-resettable total will not be effected. This is
most often used during flush or soft air push cycles. It can also be used to account for only
that material which is delivered onto parts.
For GUNs configured as single-component, automatic mode only. This input is only acknowl-
edged for run and load modes. This input must be supplied before the clean input or the trig-
ger input if in run mode. This signal will place the CHANNEL in single-component, open loop
mode and redirect the Analog Set Point Input directly to the E/P transducer control output.
MAXIMUM FLOW RATE, MINIMUM FLOW RATE, MVR HIGH and MVR LOW parameters
have no effect while in the transparent mode. The Out of Tolerance, FLOW TOO LOW and
FLOW TOO HIGH faults will also be disabled while in the Transparent condition.
This signal applies only to GUNs configured for single-component automatic mode. This
signal will suspend PID control and freeze the analog control output to the E/P transducer to
the current value. Normal PID operation will resume when this signal is removed. This would
typically be used during flushing operations or for control stability in situations where there
are extremely quick trigger cycles or equipment limitations. The Out of Tolerance, Flow Too
Low and Flow Too High faults will also be disabled while in the Analog Hold condition.
Load requires a pulsed signal of at least 0.25 seconds duration. The LOAD input places a
manual, two-component GUN into LOAD MODE. LOAD MODE is a special way to meter
both resin and catalyst to the applicator after the system has been through a CLEAN opera-
tion while assuring accurate ratios. A GUN can be placed into the LOAD MODE directly from
the RUN MODE. For details, refer to LOAD MODE in the "Operation" section of this manual.
External Fault will detect a low signal of at least 0.25 seconds duration. This signal must be
maintained high for normal operation. No fluid flow will occur regardless of the operat-
ing mode if the Enable input is not active. This input is supplied as an interlock for other
equipment to automatically shut down the fluid flow controller. The system must be reset after
the External Fault is returned to the high state. Reference "Recovering From Faults" in the
"Operation" section of this manual. A Global Gun Enable system input will override this input.
Not used presently.
This is a 0-10 VDC or 4-20 ma input signal (hardware selectable on the Channel Card) which
can be used to command flow rate when the applicator is in AUTOMATIC mode. The scaling
for input signal vs. flow rate is determined by the GUN JOB # parameters, MAXIMUM FLOW
RATE and MINIMUM FLOW RATE. An Analog Set Point signal less than 0.25 VDC will cause
the controller to use the SET POINT parameter located in the JOB table instead.
Not used presently.
Input
Signals