Edwards nXDS10i nXDS15i User Manual

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Technical data
A735-01-860 Issue A
2Technical data
2.1 Logic interface
nXDS pumps have a male 15-way D-type logic interface connector located on the user interface panel (Figure 2, Item
2). The logic interface connector can be plugged directly into your control equipment or a PC using a suitable
connector mating half (not supplied). Refer to Table 1 for the logic interface pins for the electrical connections and
Table 2 for the interface technical data.
Table 1 - Logic interface connection pins
Pin Number Signal Use
1 Analogue Speed Enable-control Input Connect to Pin 2 (0 V) to enable analogue speed control via
Pin 9.
2 0 V Control Reference 0 V reference for ALL control and status signals listed within
this table.
3 START / STOP – Control Input Connect to Pin 2 (0 V) to START the nXDS pump system.
4STANDBY – Control Input /
RS232 Rx / RS485 A-
Connect to Pin 2 (0 V) to enable STANDBY speed when the
SERIAL ENABLE control input is inactive.
5 Serial Enable – Control Input Connect to Pin 2 (0 V) to enable serial communications.
6 RS232 / RS485 – Control Input Default configuration is RS232 with Pin 6 unconnected.
Connect to Pin 2 (0 V) to enable RS485 serial
communications.
7 FAIL – Status Output /
RS232 Tx / RS485 B+
Logic HIGH when a fail / fault condition exists and the SERIAL
ENABLE control input is inactive.
8 0 V Control Reference 0 V reference for ALL control and status signals listed within
this table.
9 Analogue Speed – Control Input 0-10 V Analogue Input: 0 V = 0% Speed; +10 V = 100% Speed
10 Chassis / Screen Screen
11 +10 V Analogue Reference – Control
Output
+10 V analogue voltage reference output: 5 mA;
uni-polar output, diode protected.
12 Chassis / Screen Screen
13 Not Connected Unused control pin.
14 REMOTE – Control Input Connect to Pin 2 (0 V) to enable remote operation via Parallel
control mode.
15 NORMAL – Status output Logic LOW when the pump rotational speed is at normal
speed or above.

Edwards nXDS10i nXDS15i Specifications

General

Brand	Edwards
Model	nXDS10i nXDS15i
Category	Water Pump
Language	English