NC
NC NC
NC
NC NC
NC
NC NC
PELV
PELV
PELV
1
10
2 3 4 5 6 7 8 9
12
11
PELV
LIVE
PART
LIVE
PART
1
10
2 3 4 5 6 7 8 9
12
11
1
10
2 3 4 5 6 7 8 9
12
11
130BA176.10
LIVE
PART
LIVE
PART
LIVE
PART
Figure 3.7
WARNING
Do not combine low voltage parts and PELV systems. At a single fault the whole system might become dangerous to touch
and it could result in death or serious injury.
3.1.8 24 V Backup Option MCB 107 (Option D)
External 24V DC Supply
An external 24V DC supply can be installed for low-voltage supply to the control card and any option card installed. This
enables full operation of the LCP (including the parameter setting) and serial communication busses without line power
supplied to the power section.
External 24V DC supply specification:
Input voltage range
24V DC ±15% (max. 37 V in 10 sec.)
Max. input current
2.2A
Average input current for the Adjustable frequency drive
0.9A
Max cable length
246 ft [75m]
Input capacitance load
< 10uF
Power-up delay
< 0.6sec.
The inputs are protected.
Terminal numbers:
Terminal 35: - external 24V DC supply.
Terminal 36: + external 24V DC supply.
Follow these steps:
1.
Remove the LCP or blind cover
2.
Remove the Terminal Cover
3.
Remove the cable de-coupling plate and the
plastic cover underneath
4.
Insert the 24V DC Backup External Supply Option
in the Option Slot
5.
Mount the cable de-coupling plate
6.
Attach the terminal cover and the LCP or blind
cover.
When MCB 107, 24V backup option is supplying the
control circuit, the internal 24V supply is automatically
disconnected.
35 36
35
36
130BA028.11
Figure 3.8 Connection to 24V Backup Supplier (A2-A3).
VLT
®
HVAC Drive Selection
VLT
®
HVAC Drive Design Guide
MG11BB22 - VLT
®
is a registered Danfoss trademark
3-5
3
3
Содержание VLT HVAC Drive FC 100 Series
Страница 10: ...How to Read this Design Gui VLT HVAC Drive Design Guide 1 6 MG11BB22 VLT is a registered Danfoss trademark 1 1...
Страница 56: ...Introduction to VLT HVAC D VLT HVAC Drive Design Guide 2 46 MG11BB22 VLT is a registered Danfoss trademark 2 2...
Страница 126: ...How to Install VLT HVAC Drive Design Guide 5 38 MG11BB22 VLT is a registered Danfoss trademark 5 5...
Страница 136: ...Application Examples VLT HVAC Drive Design Guide 6 10 MG11BB22 VLT is a registered Danfoss trademark 6 6...
Страница 160: ...RS 485 Installation and Set VLT HVAC Drive Design Guide 7 24 MG11BB22 VLT is a registered Danfoss trademark 7 7...