Rockwell Automation DC3R Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC User Manual
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ATTENTION:
The equipment is at line voltage when AC power is
connected. Disconnect and lockout all ungrounded conductors of the
AC power line. Failure to observe this precaution could result in severe
bodily injury or loss of life.
Installation
+15 and –15 terminals
DC3R drives can supply a regulated +15 and –15 VDC signal (each
sourcing 25 mA maximum) to isolated, external devices. These voltage
supply terminals are located on terminal block 502 (TB502).
IMPORTANT:
Do not short +15 and –15 terminals for any reason!
Shorting these terminals may damage the drive.
ƽ
ATTENTION:
Most code requires that upstream branch protection be
provided to protect input power wiring. Failure to observe this
precaution could result in severe bodily injury or loss of life.
ƽ
DC3R drives require fuses for protection. Use fast acting fuses rated for
250 VAC or higher, and approximately 150% of the maximum armature
current. Fuse both L1 and L2 when the line voltage is 230 VAC.
Table 2 lists the recommended line fuse sizes.
Table 2. Fuse Chart
90 VDC Motor
180 VDC
Max. DC Armature AC Line Fuse
Horsepower
Horsepower
Current (amps)
Size (amps)
1/20
1/10
0.5
3
1/15
1/8
0.8
3
1/8
1/4
1.5
5
1/6
1/3
1.7
5
1/4
1/2
2.6
8
1/3
3/4
3.5
8
1/2
1
5.0
10
3/4
1 1/2
7.6
15
1
2
10
20
Install the required, user-supplied branch circuit protection fuses according
to the applicable local, national, and international codes (e.g., NEC/CEQ.
The fuses must be installed in the line before the drive input terminals.
Line Fusing for DC3R Drives