Unidrive M702 User Guide
279
Issue Number: 3
14 UL listing information
14.1 General
Drive sizes 3, 4 and 6 have been assessed to meet both UL and cUL
requirements.
UL listings can be viewed online at www.UL.com. The UL file number is
E171230.
14.2 Mounting
Drives can be installed in the following configurations:
•
Standard or surface mounted. This is described in section
3.5.1
•
Through-hole mounted. This is described in section 3.5.2
•
Tile mounted. The drive is mounted sideways with the side panel
against the mounting surface. This configuration reduces the overall
depth of the installation. A Tile mounting kit is available. See UL
listed accessories.
•
Bookcase mounted. Drives are mounted side by side with no space
between them. This configuration minimises the overall width of the
installation.
14.3 Environment
Drives are able to meet the following UL/ NEMA environmental ratings:
•
Type 1. The drive must either be installed with a UL Type 1 kit
or be
installed in a Type 1 enclosure.
•
Type 12. The drive must be installed in a Type 12 enclosure.
•
If the drive is through-hole mounted inside a Type 12 enclosure, then
both the High-IP insert and the Type 12 sealing kit must be installed
in order to provide protection against ingress of dirt and water. See
section 3.9
Enclosing standard drive for high environmental
•
The remote keypad is rated to both UL Type 1 and UL Type 12
•
Drives must be installed in a pollution degree 2 environment or
better.
14.4 Electrical installation
The following precautions must be observed when installing drives to UL
requirements:
•
Drives are rated for use at 40 °C, 50 °C and 55 °C ambient
temperature except where indicated otherwise in Table 12-1 to Table
12-3. Size 4, 400 V variant drives are rated to 35 °C, 40 °C and
45 °C.
•
For operation up to 50 °C, the temperature rating of the power
cables must be at least 60 °C.
•
For operation up to 55 °C, the temperature rating of the power
cables must be at least 75 °C.
•
If the drive control stage is powered from an external power supply
(+24 V), the power supply must be listed or recognized to UL class 2
with appropriate fusing, see section 4.5
•
Ground connections must use UL listed closed loop (ring) terminals.
14.5 UL listed accessories
The following options are UL listed
14.6 Motor overload protection
•
The drives are installed with solid state motor overload protection.
•
The default overload protection level is less than 150 % of full load
rated current for open loop operation.
•
The default overload protection level is less than 175 % of full load
rated current for closed loop vector or servo mode operation.
•
In order for the motor protection to work correctly, the motor rated
current must be entered into Pr
00.046
or Pr
05.007
•
The protection level may be adjusted below 150 % if required. See
section 8.3
14.7 Motor overspeed protection
The drive is installed with solid state motor overspeed protection.
However, this feature does not provide the level of protection provided
by an independent, high-integrity overspeed protection device.
14.8 Thermal memory retention
Drives incorporate thermal memory retention that complies fully with the
requirements of UL508C.
The drive is provided with motor load and speed sensitive overload
protection with thermal memory retention that complies with the US
National Electrical Code (NFPA 70) clause 430.126, and Underwriters
Laboratories Standard UL508C, clause 20.1.11 (a). The purpose of this
protection is to protect both drive and motor from dangerous overheating
in the event of repeated overload or failure to start, even if the power to
the drive is removed between overload events.
For a full explanation of the thermal protection system, refer to section
8.4
In order to comply with UL requirements for thermal memory retention it
is necessary to set the
Thermal Protection Mode
(Pr 04.016) to zero;
and the
Low Speed Protection Mode
(Pr 04.025) must be set to 1 if the
drive is operated in Heavy Duty mode.
Alternatively, an external thermal sensor or switch may be used as a
means of motor and drive overload protection that complies with the
requirements of UL508C, clause 20.1.11 (b). This protection method is
particularly recommended where independent forced cooling of the
motor is used, because of the risk of overheating if the cooling is lost.
External thermal sensor
The drive is provided with a means to accept and act upon a signal from
a thermal sensor or switch imbedded in the motor or from an external
protective relay. Refer to section 4.14.2
Control terminal specification
14.9 Electrical Ratings
•
Drives are listed for connection to an AC supply capable of delivering
no more than 100 kA symmetrical amperes. See Table 4-3.
•
Drives are listed for Over Voltage CAT III.
•
Power and current ratings are given in Table 12-1 to Table 12-3.
•
Fuse and circuit breaker ratings are given in Table 4-4 to Table 4-7
•
Unless indicated otherwise in Table 4-4 to Table 4-7, fuses may be
any UL listed Class J or CC with a voltage rating of at least 600 VAC.
•
Unless indicated otherwise in Table 4-4 to Table 4-7, circuit breakers
may be any UL listed type, category control number: DIVQ or
DIVQ7, with a voltage rating of at least 600 Vac.
•
KI-Keypad
•
Tile mounting kit
•
KI-Keypad RTC
•
Metal conduit entry plate
•
KI-Keypad Advanced
•
Type 12 sealing kit
•
SI-PROFIBUS
•
SD card kit
•
SI-DeviceNet
•
UL Type 1 kit
•
SI-CANopen
•
SI-Applications Plus
•
SI-Register
Summary of Contents for Unidrive M702
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