Contents
1 Safety and precautions
1-1
Safety Instructions
1-1
Avoid unintended Start.
1-1
2 Introduction
2-1
General Description
2-2
3 Supported Configuration
3-1
Introduction
3-1
Fixed-speed Pump Configuration
3-3
Master-Follower Configuration
3-4
Mixed Pump Configuration
3-5
Unequal Size Pump Configuration
3-6
Mixed Pump Configuration with Alternation
3-7
Soft Starters
3-9
4 Configuring the System
4-1
Introduction
4-1
Setting up the cascade parameters
4-1
Additional Configuration for Multiple Drives
4-1
Closed-loop Control
4-2
Staging /De-staging of Variable Speed Pumps Based on Drive Speed
4-2
Staging/De-staging of Fixed-speed Pumps Based on Pressure Feedback
4-3
5 Cascade Controller Features
5-1
Pump Status and Control
5-1
Manual Pump Control
5-1
Runtime Balancing
5-2
Pump Spin for unused pumps
5-2
Total lifetime hours
5-3
Alternation of the Lead Pump
5-3
Staging / De-staging in Mixed Pump Configurations
5-3
Override Staging /De-staging
5-4
Minimum Speed De-staging
5-4
Fixed speed only operation
5-4
6 How to Program
6-1
Extended Cascade Controller Parameters
6-1
Extended and Advanced Cascade Controller
Option
Contents
MI.38.C2.22 - VLT
®
is a registered Danfoss trademark
