B800-00-880 Issue D
Page 24 © Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
2.7 Electrical data
nEXT pumps can be driven either by the customer system or by the Edwards TIC Turbo Instrument Controller or TIC
Turbo Controller.
If using the customer system, the size of the power supply required depends on the application. The power limit
setting determines how quickly the pump ramps up and dictates the size of the power supply required. If serial
communications or access to an Edwards TIC is available, the power limit setting of the nEXT pump can be selected.
Refer to Table 10 for the maximum power limit settings for nEXT pumps. If the application requires rapid cycling of
the pump, faster ramp times can be achieved if the power supply delivers higher current, up to a maximum in
accordance with Table 10.
If the facility to adjust the power limit setting is not available, use a power supply capable of delivering enough
current to meet the Edwards factory default power limit setting, shown in Table 10.
If the nEXT pump is driven using an Edwards TIC, be aware that there are several variants. Contact Edwards to
determine which is most suitable for the application.
2.8 Logic interface connector
nEXT pumps have a 15-way logic interface connector on the end of the logic interface cable. The logic interface
connector can be plugged directly into the Edwards TIC Turbo Instrument Controller or TIC Turbo Controller.Use a
suitable connector mating half (not supplied) to connect the nEXT pump to the customer equipment. Refer to
Table 10 for the connector mating half type, to Table 11 for Logic Interface connector pins for the electrical
connections and to Figure 8 for the connector interface circuit diagrams.
Table 10 - Logic interface technical data
Logic interface item
Connector
*
15-way D-type male
nEXT pumps electrical supply:
Allowable voltage range
(including any ripple)
24 - 48 V d.c. +5%, -10%
(21.6 to 50.4 V d.c.)
Maximum voltage ripple 0.5 V r.m.s.
Fuse rating 10 A for 24 V d.c. supply
5 A to 10 A for 48 V d.c. supply
Type 'T' IEC approved or
Time delay fuse UL/CSA approved
Limit on power drawn from supply.
Factory default setting 160 W
Maximum setting 200 W
Minimum setting 50 W
Accuracy of power regulation +/- 10 W
Start and serial enable control inputs:
Enabled control voltage: low (close) 0 to 0.8 V d.c. (I
out
= 0.55 mA nominal)
Disabled control voltage: high (open) 4 to 26.4 V d.c. (Internal pull up to 6.4 V nominal)
Standby control input
Enabled control voltage: low (close) 0 to 0.8 V d.c. (I
out
= 0.29 mA nominal)
Disabled control voltage: high (open) 4 to 26.4 V d.c. (Internal pull up to 3.2 V nominal)
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