© Edwards Limited 2013. All rights reserved. Page 53
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Operation
B800-00-880 Issue D
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 the pump is shipped, it is
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 12) or by using a serial command. If using the buttons, each button press will adjust the speed
by 10 Hz (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 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, send a query as follows:
The reply 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 the pump is shipped, it is 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 will be as follows:
The normal speed is now stored in memory within the nEXT pump.
To check what normal speed is set, send a query as follows:
The reply 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
Reply * S
8 5 6sprcr
Command ? S
8 5 6cr
Reply = S
8 5 6spd d dcr
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