-16-
°
If two or more drives need to be installed in the same device or control panel, they should be ar-
ranged horizontally to minimize the influence of heat between them. If two or more drives must be
installed vertically, place a plate between them to prevent the upper drive from being affected by
heat from the lower drive.
Figure 2-2-2 How to install two or more drives
!
CAUTION
1.
Do not allow foreign matter such as lint, paper dust, small chips of
wood or metal, or dust to enter the drive or adhere to the heat sink.
Risk of fire!
2-3 Connection
Remove the surface cover to connect the terminal blocks. Wire them properly as follows.
2-3-1
Basic connection
¬
Only connect the power to the main power supply input terminal of the drive. If connected to an-
other terminal, the drive will be damaged (see Figure 2-3-1).
-
Always ground the ground terminal to help prevent fire and electric shock, and to minimize noise.
®
Use a reliable crimp terminal for connection between terminal and wire.
¯
After terminating the connection (wiring), check for the following items:
a. Correct connection.
b. All necessary connections have been made
c. Short-circuit or ground fault between terminals and wires
°
Connection modification after power-on
The smoothing capacitor in the direct current part of the main circuit takes some time to discharge
after the power is turned off. Use a multimeter to check that the DC voltage is reduced to a safe
level (25 VDC or less) after the charge lamp goes off to avoid danger. Check that the voltage is
zero before short-circuiting any circuit, since residual voltage may cause sparking.
!
WARNING
1. Always ground the drive.
Risk of electric shock and fire!
2. Ensure that a licensed specialist performs the wiring work.
3. Check before starting the wiring that the power is off.
Risk of electric shock!
Drive
Drive
Air supply Air supply
(a) Horizontal arrangement
(b) Vertical arrangement
Drive
Air
supply
Plate
Drive
