Initial Setup - Danfoss Cascade Operating Instructions Manual

Initial Setup

Instructions for programming Quick Menu items
1-20 are presented in Chapter 5, VLT Drive and
Cascade Controller Card Setup. Parameters
1-20 must be programmed before programming
additional options described below.
Quick Menu 021 Par. 712 Motor Pump
Combinations
(PUMP COMBINATION)
Value:
Function:
The combinations of pumps and their rated capacities
are selected in this parameter. The lead pump (or fan)
with the cascade contol option must have a capacity
of 100% and its speed is controlled by the VLT
adjustable frequency drive. This enables the highest
accuracy in regulation of the system. In Standard
cascade control mode, additional pumps can be either
100%, 200% or 300% relative to the VLT driven pump.
Motor Pump Combinations
Value:
Additional Constant Speed Pumps Operated by Cascade Control
Display Option
R6 @100%
R6, R7 @100%
R6-R8 @100%
R6-R9 @100%
R6 @100%, R7 @200%
R6 @100%, R7, R8
@200%
R6, R7 @100%, R8
@300%
R6, R7 @100%, R8, R9
@300%
MG.60.I3.02 - VLT is a registered Danfoss trademark
(See options in table below)
100% Capacity
1 pump controlled by
relay 6
2 pumps controlled by
relays 6, 7
3 pumps controlled by
relays 6, 7, 8
4 pumps controlled by
relays 6, 7, 8, 9
1 pump controlled by
relay 6
1 pump controlled by
relay 6
2 pumps controlled by
relays 6, 7
2 pumps controlled by
relays 6, 7
Cascade Controller Option
Description of choice:
Select the pump combination and capacities
from the choices offered.
200% Capacity
1 pump controlled
by relay 7
2 pumps controlled
by relays 7, 8
300% Capacity
1 pump controlled
by relay 8
2 pumps controlled
by relays 8, 9
39