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Wiring clearance disconnect 24v power supply – Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 32

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2–14

Installation

Publication 1397-5.0 — June, 2001

Table 2.A
Chassis Ground Connections

Hardware Size

Tightening

M5

18 lb/in (2Nm)

M6

33 lb/in (3.7 Nm)

M8

100 lb/in (11.3 Nm)

M10

200 lb/in (23 Nm)

Lug with 14–10 AWG

35 lb/in (4 Nm)

Lug with 8 AWG

40 lb/in (4.5 Nm)

Lug with 6–4 AWG

45 lb/in (5.1 Nm)

Although the minimum clearance should be maintained for proper
cooling, this space may not always provide proper wiring clearance.
The minimum allowable wire bending radius may necessitate that
extra space be provided to accommodate power wiring. Consult the
governing code for the proper wiring method.

NOTE: You are responsible for completing the installation of the
Drive system and to comply with all National and Local Electrical
Codes. The following information is to be used as a reference only.

ATTENTION: Hazard of electric shock or equipment
damage exist if the Drive is not installed correctly. The
National Electrical Code (NEC) and local codes outline
provisions for safely installing electrical equipment.
Installation must comply with specifications regarding
wire types, conductor sizes, branch circuit protection
and disconnect devices. Failure to do so may result in
personal injury and/or equipment damage.

!

You must provide a main disconnect and lockout device with cabinet
interlocks. This device must be wired in the isolation transformer or
reactor primary circuit. The device must be sized to handle 115% of
the full load primary current plus any additional loads that are
connected to the control system. Proper branch circuit protection for
the Drive and additional devices must be provided according to NEC
and local codes.

NOTE: Refer to Table on Page 1-6 for Drive current ratings to aid
in properly sizing wire.

The 1397 is equipped with a 250mA 24V power supply to power
additional peripheral devices. For example, up to two of the following
24V DC Scanport modules can be used:

1203-GK1 Single Point Remote I/O
1203-GK2 DFI (RS–232 / 422 / 485) or DH–485

Wiring Clearance

Disconnect

24V Power Supply