Edwards nXDS Series User Manual

A735-01-880 Issue C
Page 12 © Edwards Limited 2017. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
2.5 Logic interface data
The pumps have a 15-way D-type logic interface connector located on the user interface panel (Figure 1, item 7).
The logic interface connector can be plugged directly into the Edwards 200W Turbo Instrument Controller (TIC) or
turbo controller, or Turbo and Active Gauge controller (TAG). A suitable connector mating half must be used (not
supplied) to connect the nXDS pump to the customer control system. Refer to Table 10 for the interface technical
data and Table 11 for the logic interface pins for the electrical connections.
Table 10 - Logic interface technical data
Logic interface description
Connector
*
*
Mating half of connector not supplied
15-way D-type (male)
Start, serial enable and remote enable:
Enable control voltage: low (closed) 0 to 0.8 V d.c. (l
OUT
= 0.55 mA nominal)
Disable control voltage: high (open) 4 to 26.4 V d.c. (Internal pull up to 6.4 V nominal)
Standby control input:
Enable control voltage: low (closed) 0 to 0.8 V d.c. (l
OUT
= 0.3 mA nominal)
Disable control voltage: high (open) 4 to 26.4 V d.c. (Internal pull up to 3.2 V nominal)
Analogue and RS485 enable control inputs:
Enable control voltage: low (closed) 0 to 0.8 V d.c. (l
OUT
= 0.55 mA nominal)
Disable control voltage: high (open) 4 to 52.8 V d.c. (Internal pull up to 6.4 V nominal)
Analogue speed input
0 to 10 V d.c. directly proportional to the motor speed
e.g. 0 V = 0 Hz, 10 V = 30 Hz
Voltage accuracy ± 5% full scale
NORMAL status output:
Type Open collector transistor plus pull up resistor.
< Normal speed (default 80%) OFF (4.7 k pull up + diode to 12 V d.c.)
≥ Normal speed ON (< 0.8 V d.c. sinking 10 mA)
Maximum current rating 10 mA
Maximum voltage rating 28.8 V d.c.
FAIL status output:
Type Open collector transistor plus pull up resistor.
Fail OFF (4.7 k pull up + diode to 12 V d.c.)
OK ON (< 0.8 V d.c. sinking 10 mA)
Maximum current rating 10 mA
Maximum voltage rating 28.8 V d.c.
Analogue 10 V reference
+ 10 V d.c. analogue voltage reference
Unipolar output with diode protection
Voltage accuracy ± 2% full scale
Output current ≤ 5 mA for specified accuracy

Edwards nXDS Series Specifications

General

Brand	Edwards
Model	nXDS Series
Category	Water Pump
Language	English