Electrical hook-up – Yaskawa DSD 406 User Manual
Page 18
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Installation and Start-Up
14
Electrical Hook-Up
3/21/96
Ensure that wire size and disconnect devices conform to the installation
contractor’s drawings and to all applicable codes.
●
Although the three phase input power line is fuse protected internal to the
drive, it is recommended to provide branch circuit protection by means of a
circuit breaker in accordance with the National Electrical Code, local codes
and with a rating of not less than 5,000 rms Symmetrical Amperes and 600
Volts for 2 to 25 Hp rated drives or 10,000 rms Symmetrical Amperes and
600 volts for 30 to 60 Hp rated drives.
●
Electronic overload protection is provided as part of the standard DSD
product. It si electronically timed and will shut down the drive along a
time/output current curve which provides shutdown at 60 seconds at 150%
or 10 seconds at 200% of rated output current. An overload relay may be
added external to the drive in accordance with the National Electrical Code
and local codes for additional protection.
●
Main Circuit Input/Output Wire Sizing:
L1-3: Using 600V vinyl-sheathed wire per the following table.
Electrical
Hook-Up
Recommended Wire Gauge (Copper Only)
Torque
Drive Hp
60°C
75°C
(in-lbs)
2
14
14
35
3
14
14
35
5
14
14
35
7
8
10
40 - 35 *
10
8
10
40 - 35 *
15
6
8
45 - 40 *
20
6
8
45 - 40 *
25
4
4
45
30
4
4
45
40
1
150
50
1
150
60
1/0
180
75
3/0
250
100
3/0
250
125
250 MCM
325
150
600 MCM
375
200
600 MCM
375
* Torque per wire gauge.