Danfoss VLT AQUA Drive FC 202 Design Guide

•
Master/slave mode runs all blowers/pumps at the
same speed, potentially reducing the energy
consumption to less than half that of valve
throttling or traditional, across-the-line on/o
cycling.
•
Lead-pump alternation assures that multiple
pumps or blowers are used equally.
24 V DC supply option MCB 107
The option is used to connect an external DC supply to
keep the control section and any installed option active
when line power is down.
•
Input voltage range: 24 V DC +/- 15% (max. 37 V
in 10 s).
•
Maximum input current: 2.2 A.
•
Maximum cable length: 75 m (250).
•
Input capacitance load: <10 uF.
•
Power-up delay: <0.6 s.
•
Easy to install in adjustable frequency drives in
existing machines.
•
Keeps the control board and options active
during power cuts.
•
Keeps serial communication busses active during
power cuts Ordering number 130B1108 uncoated
– 130B1208 coated (Class G3/ISA S71.04-1985).
3.7.1
Communication Options
•
VLT
®
PROFIBUS DP V1 MCA 101
•
VLT
®
DeviceNet MCA 104
•
VLT
®
PROFINET MCA 120
•
VLT
®
EtherNet/IP MCA 121
•
VLT
®
Modbus TCP MCA 122
For further information, refer to chapter 7
Specications.
3.7.2
Input/Output, Feedback and Safety
Options
•
VLT
®
General Purpose I/O Module MCB 101
•
VLT
®
Relay Card MCB 105
•
VLT
®
PTC Thermistor Card MCB 112
•
VLT
®
Extended Relay Card MCB 113
•
VLT
®
Sensor Input Option MCB 114
For further information, refer to chapter 7
Specications.
3.7.3
Cascade Control Options
The cascade controller options extend the number of
available relays. Once one of the options is installed, the
parameters needed to support the cascade controller
functions will be available through the control panel.
MCO 101 and 102 are add-on options extending the
supported number of pumps and the functionalities of the
built-in cascade controller in the VLT
®
AQUA Drive.
The following options for cascade control are available for
the VLT
®
AQUA Drive:
•
Built-in basic cascade controller (standard cascade
controller)
•
MCO 101 (extended cascade controller)
•
MCO 102 (advanced cascade controller)
For further information, see chapter 7
Specications.
The extended cascade controller can be used in two
dierent modes:
•
With the extended features controlled by
parameter group 27-** Cascade CTL Option.
•
To extend the number of available relays for the
basic cascade controlled by parameter
group 25-**. Cascade Controller.
MCO 101 allows using a total of
ve relays for cascade
control. MCO 102 allows controlling a total of eight pumps.
The options are able to alternate the lead pump with two
relays per pump.
NOTICE!
If the MCO 102 is installed, the relay option MCB 105 can
extend the number of relays to 13.
Application
Cascade control is a common control system used to
control parallel pumps or fans in an energy-ecient way.
The cascade controller option enables control of multiple
pumps congured in parallel by:
•
Automatically turning individual pumps on/o.
•
Controlling the speed of the pumps.
When using cascade controllers, the individual pumps are
automatically turned on (staged) and turned o (de-
staged) as needed in order to satisfy the required system
output for ow or pressure. The speed of pumps
System Integration
VLT
®
AQUA Drive FC 202
72 Danfoss A/S © 09/2014 All rights reserved. MG20N622
33

Danfoss VLT AQUA Drive FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive FC 202
Category	DC Drives
Language	English