Wiring Configuration For A Relay Set-Up With Smart Logic Control; Wiring Configuration For A Fixed Variable-Speed Pump; Wiring Configuration For Lead Pump Alternation - Danfoss VLT HVAC Drive FC 102 Design Manual

Application Examples
12.10 Wiring Configuration for a Relay Set-
up with Smart Logic Control
FC
+24 V 12
+24 V 13
D IN 18
D IN 19
COM 20
D IN 27
29
D IN
D IN 32
D IN 33
D IN
37
+10 V 50
A IN
53
A IN
54
COM
55
A OUT
42
COM
39
01
02
03
04
05
06
12 12
Notes/comments:
If the limit in the feedback monitor is exceeded, warning 90,
Feedback Mon. is issued. The SLC monitors warning 90, Feedback
Mon. and if the warning becomes true, relay 1 is triggered.
External equipment may require service. If the feedback error
goes below the limit again within 5 s, the drive continues and
the warning disappears. Reset relay 1 by pressing [Reset] on the
LCP.
Table 12.13 Wiring Configuration for a Relay Set-up with
Smart Logic Control
214
®
VLT HVAC Drive FC 102
Parameters
Function Setting
Parameter 4-30 [1] Warning
Motor Feedback
Loss Function
Parameter 4-31 100 RPM
Motor Feedback
Speed Error
Parameter 4-32 5 s
Motor Feedback
Loss Timeout
Parameter 7-00 S [2] MCB 102
peed PID
Feedback Source
Parameter 17-11 1024*
Resolution (PPR)
Parameter 13-00 [1] On
SL Controller
Mode
Parameter 13-01 [19] Warning
Start Event
Parameter 13-02 [44] Reset key
Stop Event
Parameter 13-10 [21] Warning
Comparator no.
Operand
Parameter 13-11 [1] ≈ (equal)*
Comparator
Operator
Parameter 13-12 90
Comparator
Value
Parameter 13-51 [22]
SL Controller Comparator 0
Event
Parameter 13-52 [32] Set digital
SL Controller out A low
Action
Parameter 5-40 F [80] SL digital
unction Relay output A
*=Default value
Danfoss A/S © 11/2017 All rights reserved.
12.11 Wiring Configuration for a Fixed
Variable-speed Pump
L1/L2/L3 L1/L2/L3
Illustration 12.5 Fixed Variable Speed Pump Wiring Diagram
12.12 Wiring Configuration for Lead Pump
Alternation
L1/L2/L3 L1/L2/L3
FC
k3 k3
k2 k1
K2
K1 K3
Illustration 12.6 Lead Pump Alternation Wiring Diagram.
Every pump must be connected to 2 contactors (K1/K2 and
K3/K4) with a mechanical interlock. Thermal relays or other
motor overload protection devices must be applied
according to local regulation and/or individual demands.
•
Relay 1 (R1) and relay 2 (R2) are the built-in relays
in the drive.
•
When all relays are de-energized, the 1
relay that is energized cuts in the contactor
corresponding to the pump controlled by the
L1/L2/L3
L1/L2/L3
K1
K1
K4
K3
K4
st built-in
MG16C302