Parameter
Range
Default
Function
25-58 Run
Next Pump
Delay
0.1-5.0 s
*0.1 s
Time between
stopping the old
variable speed
pump and
starting the new
appointed pump.
25-59 Run on
Mains Delay
Expressionlimit
(0.1)-5.0 s
*0.5 s
Time delay
before a fixed
speed pump is
staged on
according to
normal staging
sequence.
25-80 Cascade
Status
View the control
status for the
Cascade
Controller.
25-81 Pump
Status
0-0
* 0
View the status
for the pumps
connected:
X=Disabled,
O=Off, D=Speed
controlled,
R=Mains.
Parameter
Range
Default
Function
25-84 Pump
ON Time
0-2147483647
* 0
View the total
operating hours
of the connected
pumps. Can be
reset by writing
0..
25-90 Pump
Interlock
*[0] Off
[1] On
*[0] Off
Choose the
pump to
interlock for e.g.
service. The
pump will be
taken out of any
pump cycling etc.
Table 1.3
1.2 Installation
1.2.1 Control Terminals
Illustration 1.3
shows all control terminals of the frequency
converter. Applying Start (terminal 18), connection
between terminal 12-27 and an analog reference (terminal
53 or 54 and 55) make the frequency converter run.
18 19
12 20 55
27 29 42 45 50 53 54
DIGI IN/OUT
DIGI IN/OUT
DIGI IN
DIGI IN
61 68 69
N
P
COMM. GND
+24V
0/4-20mA A OUT / DIG OUT
0/4-20mA A OUT / DIG OUT
COM A IN
COM DIG IN
10V/20mA IN
10V/20mA IN
10V OUT
130BB985.10
BUS TER.
OFF
ON
Illustration 1.3 Control Terminals
VLT® HVAC Basic Drive Casca...
VLT
®
HVAC Basic Drive Cascade Controller
4
MI18I302 - VLT
®
is a registered Danfoss trademark
1
1
