Specifications

Relay 7
NC NCNC
Relay 9Relay 8
1 23 12
130BA162.10
75468910 11
Illustration 3.3 Relay Locations
130BA177.10
8-9mm
2mm
Illustration 3.4 Correct Installation
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.
1 1 1
11023456789 1211
22 3
1 1 1
11023456789 1211
33 3
1 1 1
11023456789 1211
22
2
130BA176.11
Illustration 3.5 Location of NC, PELV and Live Parts
1NC
2 Live part
3 PELV
Table 3.5 Legend to
3.1.7 24 V Back-Up Option MCB 107 (Option D)
External 24 V DC Supply
An external 24 V DC supply can be installed for low-voltage supply to the control card and any option cardS. This enables
full operation of the LCP (including the parameter setting) and fieldbuses without mains supplied to the power section.
External 24 V DC supply specification:
Input voltage range 24 V DC ±15 % (max. 37 V in 10 s.)
Max. input current 2.2 A
Average input current for the frequency converter 0.9 A
Max cable length 75 m
Input capacitance load < 10 uF
Power-up delay < 0.6 s.
The inputs are protected.
Terminal 35: (-) external 24 V DC supply.
Terminal 36: (+) external 24 V 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 24 V 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
Selection VLT® HVAC Drive FC 102 Design Guide
52 MG16C102 - Rev. 2013-08-20
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