Cascade Controller; System Settings - Danfoss VLT FC 102 Programming Manual

Programming Guide | VLT® HVAC Drive FC 102
C ation mode (P 1-00):
Cascade controller (P 25-00):
Motor start (P 25-02):
Pump cycling (P 25-04):
Fixed lead pump (P 25-05):
Number of pumps (P 25-06):
Lead pump alternation (P 25-50):
Alternation Event (P 25-51):
Alt. if capacity<50% (P 25-55):
Staging mode at alternation (P 25-56):
Figure 101: Cascade Controller Sample Setup
6.25.2

25-0* System Settings

25-00 Cascade Controller

Default value: [0] Disabled
Setup:
2 setups
Data type: Uint8
For operation of multiple devices (pump/fan) systems where capacity is adapted to actual load with speed control combined with on/off
control of the devices. For simplicity, only pump systems are described. To enable the cascade controller functionality, set parameter 1-00
Configuration Mode to [3] Closed loop.
552 | © 2024.10
C . of cascade controller
Open Loop Closed Loop
Disabled Enabled
Direct on line
Disabled
No
2
At
staging command
External
Disabled
Slow
Parameter type:
Conversion index:
Change during operation:
Soft Starter
Enabled
Yes
2 3
At At staging
or
command
Alt. timer
Sleep
interval
mode
P 25-52
Enabled
Quick
Option
–
False
AU430028034214en-001901 / 130R0310
Parameter Descriptions
Pr
timer
P 25-54