EasyManuals Logo

Edwards nXDS15i User Manual

Edwards nXDS15i
58 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #35 background imageLoading...
Page #35 background image
5.3 Parallel control and monitoring
Figure 10 Logic interface c
onnecons - parallel control
1. Start switch 2. Standby switch (oponal)
3. nXDS pump logic interface
1. Start switch 2. Standby switch (oponal)
3. nXDS pump logic interface
CAUTION:
If using the normal and f
ail lines to drive the coils of d.c. relays, include a back EMF
suppression diode in parallel with each relay coil to protect the pump.
Connect the control equipment to the control input pins of the logic interface mang
half. Refer to Table: Logic interface technical data on page 21 to idenfy the logic
interface connector pins. The control inputs are as follows:
Start
Standby speed
Analogue speed
T
o acvate any of these control inputs, connect the relevant control input (pin 14) to the
0 V control reference.
To monitor the normal status output, connect the control equipment to the Normal
status output (pin 15) and to pin 2 of the logic interface mang half. The output can be
used to control other devices in the pumping system. The output can drive a low power
relay of up to 24 V coil rang (up to 10 mA).
To monitor the fail status output, connect the control equipment to the fail output (pin
7) and to pin 2 of the logic interface mang half. The output can be used to control other
devices in the pumping system. The output can drive a low power relay of up to 24 V coil
rang (up to 10 mA).
5.4 Analogue speed control
The Analogue Speed input is a process control source which enables the nXDS Scroll
pump to run at variable operang speeds. This speed control source is an alternave to
standby speed control.
Page 33
A73501880_G - Oper
aon

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Edwards nXDS15i and is the answer not in the manual?

Edwards nXDS15i Specifications

General IconGeneral
BrandEdwards
ModelnXDS15i
CategoryWater Pump
LanguageEnglish

Related product manuals