Titan ProPAC-3, Руководство пользователя

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Section 3
Alarm Operations
Version 3.01
1.0 Introduction
The ProPAC-3 incorporates twelve (12) distinct alarms. All alarms are incorporated into the microprocessor
software except one alarm, which is an integral part of the main circuit board design. The alarms are
provided in order to insure the additive to product ratio during product loading is within prescribed user
specifications for each and every product load. Alarms are useful in determining conditions that may
adversely affect the desired additive/product ratio.
It is important to note, the desired additive/product ratio can only be achieved if the ProPAC-3 is
integrated into a control system where product loading is terminated anytime an alarm is activated.
Alarms may generally be covered by the following five category types:
1. Failure to inject additive when required (no additive flow)
2.
Unauthorized flow of additive, when additive is not required (additive leak)
3.
Under injection of additive (ratio of additive to product is less than specification)
4. Over injection of additive (ratio of additive to product is more than specification)
5.
Other alarm conditions not specifically related to the additive/product ratio,
permissive timeout, calibration, excessive temperature.
1.1 Recommended System Integration
It is recommended at a minimum, that the ProPAC-3 Permissive Output be integrated into the control
system, so product loading can be terminated on the activation of an injector alarm.
Termination of
product loading is instrumental in insuring the integrity of the additive/product ratio . In the event of
an injector alarm, the ProPAC-3 Permissive Output relay, which is normally energized, will be de-
energized. The Permissive Output relay is provided in order to simplify integration of the injector
permissive output with an electronic preset, PLC or TAS. Use of the Permissive Output provides the
additional advantage of prohibiting product loading in the event power is not on the ProPAC-3 or the
external OFF/ON switch has been positioned to the OFF position. The Permissive Output relay may be AC,
DC or mechanical dry contact (standard product).
Alarm State Screen
Fig. 1
X
BATCH CONTROLLER TITAN PRO PAC-3
Alarm
No Additive Pulse
A 298.013
P 451,240