OPERATION INSTRUCTIONS DANFOSS ENG

ManualsBrandsSystemair ManualsElectrical accessories VentilationFC102-45,0kW/90A-IP55, 150/50m - frequency converter, 380-480V, 45kW, 90A, IP55

4.5 Access

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Remove cover with a screwdriver (See Figure 4.3)

or by loosening attaching screws (See Figure 4.4).

130BT248.10

Figure 4.3 Access to Wiring for IP20 and IP21 Enclosures

130BT334.10

Figure 4.4 Access to Wiring for IP55 and IP66 Enclosures

See

Table 4.1 before tightening the covers.

Enclosure IP55 IP66

A4/A5 2 2

B1/B2 2.2 2.2

C1/C2 2.2 2.2

No screws to tighten for A2/A3/B3/B4/C3/C4.

Table 4.1 Tightening Torques for Covers [Nm]

4.6

Motor Connection

WARNING

INDUCED VOLTAGE!

Induced voltage from output motor cables that run

together can charge equipment capacitors even with the

equipment turned off and locked out. Failure to run

output motor cables separately or use shielded cables or

metal conduits could result in death or serious injury.

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Comply with local and national electrical codes

for cable sizes. For maximum wire sizes, see

chapter 8.1 Electrical Data.

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Follow the motor manufacturer wiring

requirements.

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Motor wiring knockouts or access panels are

provided at the base of IP21 (NEMA1/12) and

higher units.

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Do not wire a starting or pole-changing device

(e.g., Dahlander motor or slip ring induction

motor) between the adjustable frequency drive

and the motor.

Procedure

1. Strip a section of the outer cable insulation.

2. Position the stripped wire under the cable clamp

to establish mechanical fixation and electrical

contact between cable shield and ground.

3. Connect ground wire to the nearest grounding

terminal in accordance with grounding

instructions provided in chapter 4.3 Grounding,

see Figure 4.5.

4. Connect the 3-phase motor wiring to terminals

96 (U), 97 (V), and 98 (W), see Figure 4.5.

5. Tighten terminals in accordance with the

information provided in chapter 8.7 Connection

Tightening Torques.

Electrical Installation Instruction Manual

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