GSE 355 - 3.10.2 Pre-acts; 3.10.3 Activation Method; 3.10.5 Fill and Discharge Example

AWT35‐500349|June2009 Page22
3.10.3 Activation Method
The fill and discharge functions begin with their selected activation methods. The deactivation of the
setpoints is automatic. The desired target may be based on net or quantity (if counting is enabled).
Activation types
• Tare key – Press the
# key to start the process. A tare weight will be set and the weight will switch
to net zero.
• Remote key – Press the remote key switch.
• Auto-start – The process is automatically activated. It waits for a no-motion condition and then adds
the target to the current displayed weight to achieve a relative cutoff value.
3.10.3.1 Annunciators
Status Annunciator Status Setpoint Status (Requires Setpoint Option Board)
Vessel Fill SP 1 Illuminated Relay 1 Contacts Closed
Vessel Discharge SP 2 Illuminated Relay 2 Contacts Closed
Fill Done or Pause SP 1 & SP 2 Off Relay 1 and Relay 2 Contacts Open
3.10.4 Pause
The 350/355 can pause setpoint operations. This is useful as a safety device, for mid-cycle operator breaks,
mechanical adjustments, etc. This feature must be enabled before attempting to use.
When invoked, Pause deactivates all setpoints. The display will show: Tare= ~ Abort. Pressing
# will
abort the current cycle; any other keypress will resume the cycle. The Pause feature has four settings:
Pause Setting Action Result
Keypad 350/355 Key Press
Current cycle paused – all
setpoints deactivated.
Remote Key Remote Key Contact Closure
Current cycle paused – all
setpoints deactivated.
Both
350/355 Key Press OR Remote Key Contact
Closure
Current cycle paused – all
setpoints deactivated.
3.10.5 Fill and Discharge Example
Parameter Setting Actual Cutoff Value Comments
Targ 1 = 2000 Desired vessel fill target.
Based = Net Targets are compared to net weight.
PA 1 = 5 2000 – 5 = 1995 Fill valve closes at 1995 lbs.
Start 1 = R-but Start fill with remote key closure.
Targ 2 = 45 0 – 45 = (-45)
Desired discharge target (decreasing weight from a net
zero: enter as a positive value).
PA 2 = 5
45 – 5 = 40
0 – 40 = (-40)
Discharge valve closes at (-40) lbs. (decreasing weight
from a net zero: enter as a positive value).

Pre-act 1 controls setpoint 1. Pre-act 2 controls setpoint 2.