Digitax HD M753 Control User Guide
257
Issue Number: 3
14 UL listing information
This section is intended to be used in conjunction with the
Digitax
HD M75X Series Installation and Technical Guide
.
14.1
Scope
All models are cUL Listed to Canadian and US requirements.
The UL file reference is: NMMS / 7. E171230.
14.2
Applicant and Listee
Nidec Control Techniques Ltd
The Gro
Pool Road
Newtown
Powys
SY16 3BE
UK.
14.3
Manufacturer
Products are manufactured at several sites worldwide.
Primary manufacturing site:
Nidec Industrial Automation UK Ltd
Unit 79
Mochdre Industrial Estate
Newtown
Powys
SY16 4LE
UK.
The Manufacturing Location Code is: 8D14
14.4
Model numbers
Model numbers are listed within the ‘Ratings’ section (Chapter 2 -
Product Information) of the
Digitax HD M75X Series Installation and
Technical Guide
.
14.5
Safety information
Appropriate installation warnings, cautions and notes are located in the
Chapter 1
14.6
Adjustments
The
Digitax HD M75X Series Installation and Technical Guide
gives
details of all safety-relevant adjustments intended for the user. The
identification or function of each control or indicating device and fuse is
clearly marked in the diagrams in the
Digitax HD M75X Series
Installation and Technical Guide
.
Maintenance adjustments are also described in the
Digitax HD M75X
Series Installation and Technical Guide
. They should only be made by
qualified personnel. Clear warnings are provided where excessive
adjustment could lead to a hazardous state of the Power Drive System
(PDS), Complete Drive Module (CDM) or Basic Drive Module (BDM).
Any special equipment necessary for making adjustments is specified
and described in the ‘Mechanical Installation’ (Chapter 3) of the
Digitax
HD M75X Series Installation and Technical Guide
.
14.7
Ratings
The electrical ratings are listed within the ‘Ratings’ section (Chapter 2 -
Product Information) of the
Digitax HD M75X Series Installation and
Technical Guide
.
14.8
Short circuit current rating
All drives:
5 kA when protected by Listed fuses as specified in the
Digitax
HD M75X Series Installation and Technical Guide
.
100 kA when protected by recognized supplemental fuses as specified
in the
Digitax HD M75X Series Installation and Technical Guide
.
14.9
Overvoltage category
The Over Voltage Category is OVC III.
OVC III applies to equipment permanently connected in fixed
installations (Downstream of and including the main distribution board).
14.10 Input current, fuse ratings and cable
sizes
Electrical installation shall be in accordance with the US National
Electrical Code, the Canadian Electrical Code and any additional local
codes, as required.
The ground (earth) connections and the DC power connections must
use UL Listed ring terminals sized according to the field wiring. Only one
cable is permitted to be connected to each field wiring terminal.
The recommended cable sizes and fuse ratings are shown in the
‘Technical Data’ (Chapter 6) of the
Digitax HD M75X Series Installation
and Technical Guide
.
14.11 Motor cable size and maximum
length
The recommended motor cable sizes and maximum length are shown in
the ‘Technical Data’ (Chapter 6) of the
Digitax HD M75X Series
Installation and Technical Guide
.
14.12 Multiple wiring arrangements
The drives are able to operate from either a single phase or a three-
phase AC supply.
Additionally, the drives are able to operate from a DC supply with a
range from 24 Vdc up to the maximum rated DC supply voltage.
It is possible for the drive to go from operating on a normal line power
supply voltage to operating on a much lower supply voltage without
interruption. The wiring arrangements are shown in the ‘Electrical
installation’ (Chapter 4) of the
Digitax HD M75X Series Installation and
Technical Guide
.
14.13 External 24 V supply
An external 24 Vdc supply is required to power the low voltage circuits
within the drive. The low voltage circuits are isolated from the live
circuits.
The 24 V supply must be protected by a supplemental fuse.
Refer to the ‘Electrical installation’ (Chapter 4) of the
Digitax HD M75X
Series Installation and Technical Guide
.
14.14 Common DC bus systems
Multiple drives can be connected together via a common DC bus. For
further details, refer to ‘Multi axis system design’ (Chapter 5) of the
Digitax HD M75X Series Installation and Technical Guide
.
14.15 Solid state short circuit protection
Integral solid state short circuit protection is provided. However, this
does not provide branch circuit protection.
In the event of a ground (earth) fault within the drive, the input protective
devices (fuses or circuit breaker) provide overcurrent protection in the
usual way.
All AC drives incorporate solid state short circuit protection. If a ground
(earth) fault occurs in the motor circuit, the solid-state protection
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