Toshiba SX 2000 - Manual (Page 143)

Chapt.4 Installation and Wiring
4.2 Installing bases
Installation precautions:
( 1 )
B
Because the S2T is not of dust-proof construction, install it in a dust-proof
control panel.
(2) Do not install the bases directly above equipment which generates a large
amount of heat, such as a heater, transformer, or large capacity resistor.
(3) Do not install the bases within 200mm (Sin) of a high-voltage or power cable.
(4) Allow at least 70mm on all sides of the base for ventilation.
(5) For safety during operation and maintenance, install the base as far as is
possible from high-voltage or power equipment.
Alternatively, isolate the base using a steel plate or similar separator.
( 6 )
(7)
( 8 )
(9)
Decide the bases mounting position with considering the length of the expansion
cables.
Install the bases in fully contacting with the mounting frame in order to equalize
the potentials of basic and expansion bases.
In the vicinity of high-voltage and power equipment, it is necessary to give
consideration to grounding. (See 4.5 Grounding)
Install the bases where the power modules are always mounted on the left hand
side, vertically on the mounting frame.
(10) Mount the bases securely, using the base mounting screws of M4 size.
(Screws torque : approx. 1.47N*m=15kgf‘m)
The installation dimensions is as follows.
Type a [mm] b [mm] Weight [g] Remarks
BU648E 402.5 95 900
BU668 402.5 95 900
BU666 95 850 Under
development BU664 95 800
1 2 6 Sequence Controller S2T