Chapter 3 Installation MS300 3-1 Mounting Clearance Prevent fiber particles, scraps of paper, shredded wood, sawdust, metal particles, etc. from adhering to the heat sink. Install the AC motor drive in a metal cabinet. When installing one drive below another one, use a metal separator between the AC motor drives to prevent mutual heating and to prevent the risk of fire accident. Install the AC motor drive in a Pollution Degree 2 environment with clean and circulating air. A clean and circulating environment means air without polluting substances and dust. Mount the drive in an IP54 cabinet in order to maintain the Pollution Degree 2 or in a pollution- controlled environment.
When installing the AC motor drive in a Pollution Degree 2 ( IEC/EN 60664-1 ) environment, only nonconductive pollution occurs for the electrical equipment in the cabinet and thermostatic chamber and temporary conductivity caused by condensation is expected. The appearances shown in the following figures are for reference only. The actual motor drives may look different. Airflow direction: (Blue arrow) Inflow (Red arrow) Outflow (Black) Distance Single drive installation Side-by-side horizontal installation / Zero stack installation Figure 3-1 Figure 3-2 Minimum mounting clearance Table 3-1 The minimum mounting clearances A–C stated in the table above apply to AC motor drives installation.
Failing to follow the minimum mounting clearances may cause the fan to malfunction and heat dissipation problems. 3-2 Installation method A [mm] B [mm] C [mm] Ambient temperature (oC) Max. (Without derating) Max. (derating) Single drive installation 50 30 - 50 60 Side-by-side horizontal installation 50 30 30 50 60 Zero stack installation 50 30 0 40 50 NOTE