Electrical installation
Important notes
Safety notes for the installation according to U
L
or U
R
l
88
EDS84ASC552 EN 6.0
6.1.6
Safety notes for the installation according to U
L
or U
R
J
Warnings!
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The device has no overspeed protection.
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Must be provided with external or remote overload protection.
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The integral solid state protection does not provide branch circuit protection
and that branch circuit protection has to be provided externally in
accordance with manufacturers instructions, the National Electrical Code
and any additional codes.
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Branch Circuit Protection:
– Suitable for use on a circuit capable of delivering not more than 5000 rms
Symmetrical Amperes, 240 V Maximum (240 V devices).
– Suitable for use on a circuit capable of delivering not more than 5000 rms
Symmetrical Amperes, 400 V/500 V Maximum (400/500 V devices).
– Suitable for use on a circuit capable of delivering not more than 50k rms
Symmetrical Amperes, 240 V Maximum when protected by CC, J, T or R
Class Fuses or when protected by a circuit breaker having an interrupting
rating not less than 50k rms Symmetrical Amperes, 240 Volts Maximum
(240 V devices).
– Suitable for use on a circuit capable of delivering not more than 50k rms
Symmetrical Amperes, 500 V Maximum when protected by CC, J, T or R
Class Fuses or when protected by a circuit breaker having an interrupting
rating not less than 50k rms Symmetrical Amperes,
480/277 V Y Maximum (400/500 V devices).
Branch Circuit Short Circuit Protection with fuses in accordance with UL248
or circuit breaker, 400/480 V Y Maximum, in accordance with UL489.
Voltage of the fuses or circuit breaker must at least be suitable with the
input voltage of the drive. The specific fuse/circuit breaker sizes and
allowable circuit breaker manufacturer and types for each inverter are
shown in the table below.
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For information on the protection level of the internal overload protection
for a motor load, see the corresponding Manual or Online Help. This
function has to be activated; i. e. the reaction must be changed from
"Warning" (factory setting) to "Fault".
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For information on rating and proper connection of the thermal protector
(only for connection to motors having integral thermal protection), see the
corresponding Manual or Online Help.
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Shall be installed in a pollution degree 2 macro−environment.
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Maximum surrounding air temperature: 55 °C.
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Use 75 °C copper wire only, except for control circuits.
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Control card protection:
– External fuse for 24 V DC supply voltage of control terminal X107.
– Rated 4 A DC fuse UL248−14.
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Safety card protection:
– External fuse for 24 V DC supply voltage of control terminal X80.
– Rated 4 A DC fuse UL248−14.
– Functional Safety is evaluated according to standards listed in section
"Safety engineering".
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