Delta VFD-EL-W Series User Manual

Chapter 4 Parameters｜VFD-EL-W
143
 bit 0: When the operating pump is failed, whether it switches to an alternative pump or not
0: Stop all pump action
1: Switch to an alternative pump
Example: bit0 = 0, when an error occurs to the running pump, all pumps stop.
bit0 = 1, when an error occurs to the running pump, switch the erroneous pump to an
alternative one.
 bit 1: During the operation, stop or standby after resetting from error
0: Set the erroneous pump to be in a standby status after reset (the pump receives the RUN
command)
1: Set the erroneous pump to be in a stop status after reset (the pump does not receive the
RUN command).
Example: bit1 = 0, after you reset the erroneous pump, it can be set running through the
controller
bit1 = 1, after you reset the erroneous pump, it cannot be set running through the controller
until the master pump gives a STOP command.
 bit 2: Whether the master pump receives the RUN command or not when the pump has an error
0: The master pump does not receive RUN command when an error occurs to the running
pump
1: The master pump can choose an alternative pump to run when an error occurs to the
running pump
Example: bit 2 = 0: when an error occurs to Pump #2, the master pump does not accept the
RUN command.
bit 2 = 1: when an error occurs to Pump #2, the master pump receives the RUN command
and chooses to run with an alternative pump.
 This parameter is only valid in AUTO mode.
10.44
Pump Start-Up Sequence Selection
Default: 0
Settings
0–1
0: By pump ID
1: By the operating time
 0: By pump ID (1 2  3  4  1)
 1: By the shortest operating time

10.45
Pump Alternative Operation Time Setting
Default: 60.0
Settings
0.0–360.0 sec.
 Sets the time for switching the master pump and the slave pump. This parameter is only valid for
master pump settings.
10.46
Reserved
–
10.48

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English