Danfoss VLT MCD 600 Installation Guide

6.5.2.1 Level Control Operation
A pressure sensor can be used to control the pump based on fluid level in a storage tank on the principle that deeper water exerts
higher pressure on the sensor.
Set parameter 33-1 Pressure Control Mode to Falling Pressure Start to fill the tank or Rising Pressure Start to empty the tank.
2
1
4
3
A
D
B
C
e77ha748.10
20 mA
4 mA
A
Time
1 Parameter 32-1 High Pressure Trip Level
3 Pump wake (parameter 33-2 Start Pressure Level)
A Pump on (wake)
C Falling fluid level
2 Pump sleep (parameter 33-4 Stop Pressure Level)
4 Parameter 32-4 Low Pressure Trip Level
B Pump off (sleep)
D Rising fluid level
Illustration 5: Falling Pressure (Fill Tank)
1
2
A
A
D
D
B
C
e77ha749.10
20 mA
4 mA
Time
1 Pump wake (parameter 33-2 Start Pressure Level) 2 Pump sleep (parameter 33-4 Stop Pressure Level)
Configuration
Installation Guide | Pumping Smart Card
AN279052730268en-000102 / 175R1183 | 21
Danfoss A/S © 2018.10

Danfoss VLT MCD 600 Specifications

General

Brand	Danfoss
Model	VLT MCD 600
Category	Controller
Language	English