Pulsar UltraTWIN, Инструкция по эксплуатации

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PULSAR MEASUREMENT
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The decision on whether or not to attempt to start the failed pump on
subsequent pump cycles will be determined by
P*300 Max. Attempts . Once
the number of attempts stipulated have been made the pump will be put
out of service until such time the Device Fail input is cleared by a
Reset
( P*391 = 4) on Digital Input 7. Alternatively, the +/- key can be used as a as
a Hot Key, which when pressed, whilst the unit is in RUN, will give details of
any
Device Fail and provides prompts to Reset any failures to the no fault
condition.
Duty
When this function is selected, the digital inputs are used to determine, via
an ‘auto/manual’ switch, which one of the devices, connected to the relay
outputs of the UltraTWIN , will be the “lead” or “duty” device.
Consider the example of an application using 2 pumps. Each pump is
connected and controlled by one of the UltraTWIN relay outputs, the pump
duty and setpoints have been programmed as detailed in
Using the Relays ,
earlier in this chapter. The signals prov iding details on the “lead” or “duty”
pump ‘status’ are connected to the digital inputs as described in Chapter 2
UltraTWIN Installation , and the input Type P*372, 375, 378, 381, 384,
387, 390 is configured as detailed in Input Type , earlier in this chapter.
Pump 1 is connected and programmed to operate on Relay 1
Pump 2 is connected and programmed to operate on Relay 2
Pump 1 Duty signal is connected to Digital Input 3
Pump 2 Duty signal is connected to Digital Input 4
The type of switch to be used to determine the duty is selected and
configured as detailed in
P*301 Switch Mode .
Standard Switch Mode (P*301 = 0 Standard)
When a standard rotary type of switch is used, to determine auto/manual
duty one input per device is required, with each input being assigned to the
appropriate device relay output that it relates to, this is determined by
Assignment P*374, 377, 380, 383, 386, 389, 392. In the case of our
example Digital Input 3 will be assigned to Relay 1 (P*380 = 1) and
Digital Input 4 will be assigned to Relay 2 (P*383 = 2) .