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UL Listing
Information
294 Unidrive SPM User Guide
www.controltechniques.com Issue Number: 3
16 UL Listing Information
The Control Techniques UL file number is E171230. Confirmation of UL
listing can be found on the UL website: www.ul.com.
16.1 Common UL information
Conformity
The drive conforms to UL listing requirements only when the following
are observed:
• The drive is installed in a type 1 enclosure, or better, as defined by
UL50
• The ambient temperature does not exceed 40°C (104°F) when the
drive is operating
• The terminal tightening torques specified in section 5.13.2 Terminal
sizes and torque settings on page 63.
• If the drive control stage is supplied by an external power supply
(+24V), the external power supply must be a UL Class 2 power
supply
Motor overload protection
The drive provides motor overload protection. The default overload
protection level is no higher than 150% of full-load current (FLC) of the
drive in open loop mode and no higher than 175% of full-load current
(FLC) of the drive in closed loop vector or servo modes. It is necessary
for the motor rated current to be entered into Pr 0.46 (or Pr 5.07) for the
protection to operate correctly. The protection level may be adjusted
below 150% if required. Refer to section 10.3 Current limits on page 146
for more information. The drive also provides motor thermal protection.
Refer to section 10.4 Motor thermal protection on page 146.
Overspeed Protection
The drive provides overspeed protection. However, it does not provide
the level of protection afforded by an independent high integrity
overspeed protection device.
16.2 Power dependant UL information
16.2.1 Unidrive SPMA
Conformity
The drive conforms to UL listing requirements only when the following is
observed:
Fuses
Unidrive SPMA
• The UL-listed Ferraz HSJ (High speed J class) fuses are used in the
AC supply. The drive does not comply with UL if any other fuses or
MCBs are used in place of those stated.
For further details on fusing, refer to Table 6-15 Unidrive SPMA input
current, fuse and cable size ratings on page 74.
Unidrive SPMU/C/D
• UL recognised semiconductor fuses type Ferraz type PSD size 32
660V (e.g. Ferraz designation 6,6 URD 32 0400 for a 400A 660Vac
fuse) or SIBA UL recognised semiconductor fuses type URS SQB2
690Vac (e.g. Siba model number 20 627 31.400
• SPMD inverter models are supplied by SPMU or SPMC rectifiers
only. The model does not comply with UL if any other fuses or MCBs
are used in place of those stated.
For further details refer to Table 6-17 Unidrive SPMC/U 400V input
current, fuse and cable size rating on page 74.
With reference to the above the fuse current rating should be taken from
the column headed “Semiconductor IEC class aR”. This semiconductor
fuse must be used in series with a HRC type fuse to provide full circuit
protection. For UL applications the applicable HRC type fuse to use is
UL listed class J, with the current rating obtained from the column
headed “HRC IEC class gG UL class J”.
Field wiring
Unidrive SPM
• Class 1 75°C (167°F) copper wire only is used in the installation
Field wiring connectors
Unidrive SPM
• UL listed wire connectors are used for terminating power circuit field
wiring, e.g. Ilsco TA series
16.3 AC supply specification
The Unidrive SPM is suitable for use in a circuit capable of delivering not
more than 100,000rms symmetrical Amperes at 528Vac rms maximum
(400V drives) or 600Vac rms maximum (575V and 690V drives).
16.4 Maximum continuous output current
The drive models are listed as having the maximum continuous output
currents (FLC) shown in Table 16-1 (see Chapter 14 Technical Data for
details).
Table 16-1 Maximum continuous output current
* SPMD 1XX4 rating with rectifier undocked
** SPMD 1XX4 rating with rectifier docked
*** SPMC/U typical DC output current
16.5 Safety label
The safety label supplied with the connectors and mounting brackets
must be placed on a fixed part inside the drive enclosure where it can be
seen clearly by maintenance personnel for UL compliance.
The label clearly states “CAUTION Risk of Electric Shock Power down
unit 10 minutes before removing cover”.
16.6 UL listed accessories
Model FLC (A) Model FLC (A)
SPMA14X1 205 SPMA16X1 125
SPMA14X2 236 SPMA16X2 144
SPMD12X1 192 SPMD14X1 205
SPMD12X2 248 SPMD14X2 246
SPMD12X3 312 SPMD14X3 290
SPMD12X4* 350 SPMD14X4* 350
SPMD12X4** 335 SPMD14X4** 335
SPMD16X1 125 SPMC/U 1402*** 379
SPMD16X2 144 SPMC/U 2402*** 2 x 345
SPMD16X3 168 SPMC/U 1601*** 209
SPMD16X4 192 SPMC/U 2601*** 2 x 185
• SM-Universal Encoder Plus • SM-PROFIBUS-DP
• SM-Resolver • SM-DeviceNet
• SM-Encoder Plus • SM-INTERBUS
• 15-way D-type converter • SM-CAN
• SM-I/O Plus • SM-CANopen
• SM-Applications • SM-Keypad
• SM-Applications Lite • SM-Keypad Plus
• SM-SLM • SM-I/O Lite
• SM-I/O Timer • SM-I/O PELV
• SM-I/O 120V • SM-I/O 24V Protected
• SM-Applications Plus • SM-SERCOS
• SM-Ethernet
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