Edwards nEXT 240D User Manual

© Edwards Limited 2013. All rights reserved. Page 25
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Technical data
B800-00-880 Issue D
Analogue output
Output voltage 0 to 10 V d.c. (directly proportional to measured
parameter)
Motor speed: 0 - 1000 Hz (0-100%)
Input power: 0 - 200 W
Motor temperature: 0 - 100 °C
Controller temperature: 0 - 100 °C
Voltage accuracy ± 0.2 V
Output current  5 mA for specified accuracy
NORMAL status output:
Type Open collector transistor plus pull up resistor. Refer to
Figure 8
< Normal speed (default 80%) Off (2.2 k internal pull up to 12 V d.c.)

Normal speed On (<0.8 V d.c. sinking 20 mA)
Current rating 20 mA to 0 V
Voltage rating 28.8 V d.c. maximum external pull up voltage
FAI L sta t us o u tp u t:
Type Open collector transistor plus pull up resistor. Refer to
Figure 8.
Fail Off (3.3 k pull up to 12 V d.c.)
OK On (< 0.1 V d.c. sinking 1.7 mA,
< 0.8 V d.c. sinking 20 mA)
Current rating 20 mA to 0 V
Voltage rating 28.8 V d.c. maximum external pull up voltage
*
Mating half of connector not supplied.
Table 11 - Logic interface connector pins
Pin Number Signal Polarity Use
2 0 V Control reference - 0 V reference for all control and status signals below
3 START/STOP control input - Connect to Pin 2 to start pump
4STANDBY control input /
Serial RX/RS485 A-
- Connect to Pin 2 to enable standby speed when serial enable
is inactive and RS485/RS232 switch is in the RS232 position.
5 Serial enable - Connect to Pin 2 to enable the serial link.
7 FAIL / Serial TX/RS485 B+ - Logic high when fail condition exists and serial enable is
inactive and RS485/RS232 switch is in the RS232 position.
9 Analogue output Positive 0 - 10 V output proportional to measured output
10 Chassis / Screen - Screen
12 Chassis / Screen - -
15 NORMAL status output - Logic low when pump rotational speed is at normal speed or
above
8, 13, 14 Electrical supply: 0 V -
1, 6, 11 Electrical supply: 24-48 V Positive
Table 10 - Logic interface technical data (continued)
Logic interface item

Edwards nEXT 240D Specifications

General

Brand	Edwards
Model	nEXT 240D
Category	Water Pump
Language	English