© Edwards Limited 2009. All rights reserved. Page 47
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Operation
B800-00-880 Issue A
4.1.4 Standby speed setting
The pump can be run at Standby Speed rather than full rotational speed. The Standby Speed is a user configurable
option and can be set to any value between 55% and 100% full rotational speed. When you receive the pump, it will
be configured with a standby speed of 70% full rotational speed.
The standby speed setting can be changed using the STDBY+ and STDBY- push buttons located on the controller
(shown in Figure 10) or by using a serial command. If using the buttons, each button press will adjust the speed by
10Hz (1%).
To change the Standby Speed setting using a serial command, send the following command (where the characters 'd'
represent the value as a percentage of full rotational speed):
The reply you receive will be in the following format:
The Standby Speed is now stored in memory within the nEXT pump.
To check what Standby Speed is set, you can send a query as follows:
The reply you receive will be as follows:
4.1.5 Normal speed setting
The Normal Speed is a user-configurable setting and can be set to any value between 50% and 100% full rotational
speed. When you receive the pump, it will be configured with a Normal speed of 80% full rotational speed.
To change the Normal Speed setting, send the following command (where the characters 'd' represent the value as a
percentage of full rotational speed):
The reply you receive will be as follows:
The Normal Speed is now stored in memory within the nEXT pump.
To check what Normal Speed is set, you can send a query as follows:
The reply you receive will be as follows:
Command ! S 8 5 7spd d dcr
Reply * S 8 5 7sprcr
Command ? S 8 5 7cr
Reply = S 8 5 7spd d dcr
Command ! S
8 5 6spd d dcr
Command * S
8 5 6sprcr
Command ? S
8 5 6cr
Reply = S
8 5 6spd d dcr
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