Automation Direct DURApulse GS4 User Manual

Page 4–198
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 4: AC Drive Parameters
tiMing chart P10.00 = 2: quantity cycle
The drive powers one pump at a time. When demand increases, the drive-powered pump is
switched to line power, and the next pump is started up on drive power. Up to 4 motors can be ON
at the same time (only one will be powered by drive power at a time).
In decreasing demand, the last pump that is on drive power stays on drive power. When demand
increases, the active pump will be switched to line power and the next pump will start up with
drive power.
Example: Assume Pumps 1, 2, and then 3 were required to satisfy the load and then demand
decreased to zero. Pump 1 and 2 (were on line power) would turn OFF, and Pump 3 would go to
0Hz (on drive power). When demand increased, Pump 3 would ramp to max frequency and then
get switched to line power. Pump 4 would then get drive power (then Pump 1, then Pump 2, etc.).
Related parameters: P10.00, P10.01, P10.03, P10.04, P10.05, P10.06, P10.07, P10.08
increasing deMand
MOTOR 1 ON GS4
MOTOR 1 ON
AC LINE POWER
MOTOR 2 ON
AC LINE POWER
MOTOR 3 ON
AC LINE POWER
MOTOR 2 ON GS4
MOTOR 3 ON GS4
MOTOR 4 ON GS4
1s*
1s*
1s*
P10-05 P10-05 P10-05
P10-03 P10-03 P10-03 P10-03 P10-03 P10-03
FREQ.
P10-06
RELA
Y
R1O
R2O.
RO10
RO11
RO12
RO13
RO14
*One second delay before start
of acceleration is not adjustable
,
and cannot be turned off.
decreasing deMand
P10-05 P10-04 P10-05 P10-04 P10-05 P10-04
MOTOR 1 ON AC LINE POWER
MOTOR 2 ON AC LINE POWER
MOTOR 3 ON AC LINE POWER
MOTOR 4 ON GS4 POWER
P10-08
FREQ.
RELAY
R1O
R2O
RO10
RO11

Automation Direct DURApulse GS4 Specifications

General

Brand	Automation Direct
Model	DURApulse GS4
Category	Controller
Language	English