Edwards nXR60i User Manual

A. To acv
ate the control inputs, connect the relevant control input (pin 14) to the 0 V
control reference.
B. The NORMAL output can go down up to 100 mA when you control an external
relay coil with an external coil voltage of + 24 V d.c. The external + 24 V voltage
source, must be referenced to the common control voltage of the pump control
system, i.e. pin 2 of the 15-Way D-Type customer interface connector.
Alternavely, if the NORMAL output is connected to + 10 V reference output of the
control system, i.e. pin 11 of the 15-Way D-Type connector, a 4.7 kOhm pull-up
resistor is recommended to be kept in the current rang of + 10 V reference rail.
C. The FAIL output can go down up to 100 mA when you control an external relay coil
with an external coil voltage of + 24 V d.c. The external + 24 V voltage source, must
be referenced to the common control voltage of the pump control system, i.e. pin
2 of the 15-Way D-Type customer interface connector. Alternavely, if the FAIL
output is connected to + 10 V reference output of the control system, i.e. pin 11 of
the 15-Way D-Type connector, a 4.7 kOhm pull-up resistor is recommended to be
kept in the current rang of + 10 V reference rail.
Figure 13 Logic interface connecons - parallel control
CS/1043/B
1 2
3
1
2 = 0 V Control reference
3 = Start/ Stop control input
4 = Standby enable input
5
6
7
8
9
10
11
12
13
14 = Remote enable input
15
1. Start switch 2. Standby switch (oponal)
3. nXRi pump logic interface
1. Start switch 2. Standby switch (oponal)
3. nXRi pump logic interface
6.5 Analogue speed control
The analogue speed input is a pr
ocess control source which enables the nXRi pump to
run at variable operang speeds. This speed control source is an alternave to standby
speed control.
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aon

Edwards nXR60i Specifications

General

Brand	Edwards
Model	nXR60i
Category	Water Pump
Language	English