ATV12H075M2 Crouzet USA, ATV12H075M2 Datasheet - Page 38

• Manufacturer Part Number: ATV12H075M2
• Description: 11R1089
• Manufacturer: Crouzet USA

Specifications of ATV12H075M2

• No. Of Phases: Single
• Power Rating: 0.75kW
• Output Voltage Max: 230V
• Frequency Range: 0.5 To 400Hz
• Output Current: 4.2A
• Supply Voltage Max: 230V
• Rohs Compliant: Yes

10
1
2
3
4
5
6
7
8
9
Functions
Introduction:
page 8
LSP: Low speed
SLE: Sleep threshold offset
UPP: Wake-up threshold
tLS: Sleep threshold operating time
LPI: PID feedback supervision threshold
HSP: High speed
FPI: Fallback speed
APO: Maximum speed detection hysteresis
tPI: PID feedback supervision function time delay
36
(continued)
Specifications:
page 10
Altivar
variable speed drives
Underload detection
See page 34.
Overload detection
See page 34.
Sleep/Wake-up
Allows the variable pump to come to a complete stop when the flow rate is
considered too low, below an adjustable “sleep threshold” (LSP+ SLE) and time
delay (tLS).
When the system is in “sleep” state, if the PID feedback value (showing the pressure
downstream of the pump) falls below a “wake up” threshold (UPP), the variable
pump is restarted.
PID feedback supervision
Once the variable pump is running at maximum speed and at the same time the PID
feedback is lower than the supervision threshold (LPI) at the end of a time delay
(tPI), the drive switches to fallback mode. There are two possible scenarios (see
graphs below):
v The drive performs a freewheel stop and displays a specific fault code 1.
v Configurable fixed speed operation with display of a specific fault code 2.
The drive reverts to regulation mode when the PID feedback returns to the
supervision threshold (LPI).
HSP - AP0
In single variable mode with auxiliary pump, this function is active when both pumps
are operating.
No-load operation detection
This function is used in applications where zero flow cannot be detected by the sleep
function alone. It is active when the auxiliary pump is stopped and the variable pump
motor frequency reference is below a configured threshold.
It consists of periodically forcing the motor frequency reference to a low value:
v If the request is still present, it results in an increase in the PID error and the drive
reverts to regulation in line with the previous reference.
v If the request is no longer present (zero flow), the PID error will not change,
which is characteristic of no-load operation. The variable pump motor is stopped.
References:
page 14
LSP + SLE
Sleep/Wake-up functions
PID feedback supervision
LPI - 2 %
LPI + 3 %
frequency
feedback
frequency
feedback
Motor
HSP
Motor
UPP
LSP
PID
LPI
FPI
PID
®
12
tLS
< tPI
Dimensions:
page 18
Sleep
tPI
Wake-up
Connections:
page 22
2
1
t
t
t
t