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UL Listing
Unidrive M200 / M201 Control User Guide 153
Issue Number: 2
13 UL Listing
13.1 UL file reference
All models are UL Listed to both Canadian and US requirements. The
UL file reference is: NMMS/7.E171230.
13.2 Option modules, kits and accessories
Option Modules, Control Pods, Installation Kits and other accessories for
use with these drives are UL Listed.
13.3 Enclosure ratings
All models are Open Type as supplied.
The drive enclosure is not classified as a fire enclosure. A separate fire
enclosure must be provided. A UL/ NEMA Type 12 enclosure is suitable.
When fitted with a conduit box the drives meet the requirements for UL
Type 1. Type 1 enclosures are intended for indoor use, primarily to
provide a degree of protection against limited amounts of falling dirt.
The drives meet the requirements for UL Type 12 when installed inside a
Type 12 enclosure and through-hole mounted using the sealing kit and
the high-IP insert (where provided).
When through-hole mounted, the drives have been evaluated as
suitable for use in surrounding air temperatures up to 40
o
C.
Remote Keypads are UL Type 12 when installed with the sealing washer
and fixing kit provided.
When installed in a Type 1 or Type 12 enclosure, the drives may be
operated in a compartment handling conditioned air.
13.4 Mounting
Drives may be surface, through-panel or tile mounted using the
appropriate brackets. Drives may be mounted singly or side by side with
suitable space between them (bookcase mounting).
13.5 Environment
Drives must be installed in a Pollution Degree 2 environment or better
(dry, non-conductive pollution only).
The drives have been evaluated for use at ambient temperatures up to
40 °C. The drives have additionally been evaluated for 50
o
C and 55
o
C
ambient air temperatures with a derated output.
13.6 Electrical Installation
OVERVOLTAGE CATEGORY
OVC III
SUPPLY
The drives are suitable for use on a circuit capable of delivering not more
than 100,000 RMS symmetrical amperes, 600 Volts AC Maximum.
TERMINAL TORQUE
Terminals must be tightened to the rated torque as specified in the
Installation Instructions.
WIRING TERMINALS
Drives must be installed using cables rated for 75 °C operation, copper
wire only.
Where possible, UL Listed closed-loop connectors sized according to
the field wiring shall be used for all field power wiring connections.
GROUND CONNECTION INSTRUCTIONS
UL Listed closed-loop connectors sized according to the field wiring shall
be used for grounding connections.
BRANCH CIRCUIT PROTECTION
The fuses and circuit breakers required for branch circuit protection are
specified in the Installation Instructions.
OPENING OF BRANCH CIRCUIT
Opening of the branch-circuit protective device may be an indication that
a fault has been interrupted. To reduce the risk of fire or electric shock,
the equipment should be examined and replaced if damaged. If burnout
of the current element of an overload relay occurs, the complete
overload relay must be replaced.
Integral solid state short circuit protection does not provide branch circuit
protection. Branch circuit protection must be provided in accordance
with the National Electrical Code (NEC), The Canadian Electrical Code,
and any additional local codes.
DYNAMIC BRAKING
M100, M101, M200, M201, M300 or M400, frame sizes 1 to 4 have been
evaluated for dynamic braking applications. Other drive models have not
been evaluated for dynamic braking.
13.7 Motor overload protection and
thermal memory retention
All drives incorporate internal overload protection for the motor load that
does not require the use of an external or remote overload protection
device.
The protection level is adjustable and the method of adjustment is
provided in section 8.4 Motor thermal protection on page 54. Maximum
current overload is dependent on the values entered into the current limit
parameters (motoring current limit, regenerative current limit and
symmetrical current limit entered as percentage) and the motor rated
current parameter (entered in amperes).
The duration of the overload is dependent on motor thermal time
constant. The maximum programmable time constant depends on the
drive model. The method of adjustment of the overload protection is
provided.
The drives are provided with user terminals that can be connected to a
motor thermistor to protect the motor from high temperature, in the event
of a motor cooling fan failure.
13.8 External Class 2 supply
The external power supply used to power the 24 V control circuit shall be
marked: "UL Class 2". The power supply voltage shall not exceed 24
Vdc.
13.9 Modular Drive Systems
Drives with DC+ and DC- supply connections, rated 230 V or 480 V have
been investigated for use in Modular Drive Systems as inverters when
supplied by the converter sections from the Unidrive-M range. In these
applications the inverters are required to be additionally protected by
supplemental fuses.
Alternatively, the inverters may be supplied by converter models: Mentor
MP25A, 45A, 75A, 105A, 155A or 210A.
Contact the supplier of the drive for more information.
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