Wiring Configuration For A Relay Set-Up With Smart Logic Control; Wiring Configuration For A Cascade Controller - Danfoss VLT HVAC Drive FC 102 Operating Manual

Operating Guide | VLT® HVAC Drive FC 102

8.1.11 Wiring Configuration for a Relay Set-up with Smart Logic Control

Table 68: Wiring Configuration for a Relay Set-up with Smart Logic Control
XD2.21
XD2.22
XD2.23
XD2.24
XD2.25
XD2.26

8.1.12 Wiring Configuration for a Cascade Controller

See illustration 63 for an example of a built-in basic cascade controller with 1 variable-speed pump (lead) and 2 fixed-speed pumps, a
4–20 mA transmitter, and system safety interlock.
122 | Danfoss A/S © 2018.10
Parameters
Function
Parameter 4-30 Motor Feedback Loss Function
Parameter 4-31 Motor Feedback Speed Error
Parameter 4-32 Motor Feedback Loss Timeout
Parameter 7-00 Speed PID Feedback Source
Parameter 17-11 Resolution (PPR)
Parameter 13-00 SL Controller Mode
Parameter 13-01 Start Event
Parameter 13-02 Stop Event
Parameter 13-10 Comparator Operand
Parameter 13-11 Comparator Operator
Parameter 13-12 Comparator Value
Parameter 13-51 SL Controller Event
Parameter 13-52 SL Controller Action
Parameter 5-40 Function Relay
*=Default value
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. Exter-
nal equipment may require service.
However, if the feedback error goes below the limit again within 5 s and the warning disappears,
press [Reset] on the LCP.
Wiring Configuration Examples
Setting
[1] Warning
100 RPM
5 s
[2] MCB 102
1024*
[1] On
[19] Warning
[44] Reset key
[21] Warning no.
[1] ≈ (equal)*
90
[22] Comparator 0
[32] Set digital out A low
[80] SL digital output A
AQ262141314214en-000101 / 130R0880