5 installing peripheral devices, Installing peripheral devices – Yaskawa R1000 Series Power Regenerative Unit User Manual
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YASKAWA ELECTRIC TOEP C710656 08B YASKAWA Power Regenerative Unit - R1000 Instruction Manual
7.5 Installing Peripheral Devices
7.5 Installing Peripheral Devices
This section describes the proper steps and precautions to take when installing or connecting various peripheral devices to
the regenerative unit.
NOTICE: Use a class 2 power supply when connecting to the control terminals. Improper application of peripheral devices could result
in regenerative unit performance degradation due to improper power supply. Refer to NEC Article 725 Class 1, Class 2, and Class 3
Remote-Control, Signaling, and Power Limited Circuits for requirements concerning class 2 power supplies.
◆ Installing a Molded Case Circuit Breaker (MCCB) or Ground Fault Circuit Interrupter
(GFCI)
Install an MCCB or GFCI for line protection between the drive power supply and the main circuit power supply input
terminals R/L1, S/L2, and T/L3. This protects the main circuit and devices wired to the main circuit while also providing
overload protection.
Consider the following when selecting and installing an MCCB or a GFCI:
• The capacity of the MCCB or GFCI should be 1.5 to 2 times the rated output current of the drive. Use an MCCB or
GFCI to keep the drive from faulting out instead of using overheat protection (150% for one minute at the rated output
current).
• If several drives are connected to one MCCB or GFCI that is shared with other equipment, use a sequence that shuts the
power OFF when errors are output by using magnetic contactor (MC) as shown in
Figure 7.2
Figure 7.2 Power Supply Interrupt Wiring (Example)
WARNING! Electrical Shock Hazard. Disconnect the MCCB (or GFCI) and MC before wiring terminals. Failure to comply may result in
serious injury or death.
R/L1
1
MB
MCCB
MC
U
X
V
Y
W
Z
MC
MC
MC
S/L2
T/L3
SA
Power
Supply
Power
Coordinating
Reactor
Drive
Regenerative
Unit
X
R
Y
S
Z
T
Current
Suppression
Reactor
Fuse
+
-
+
-
R/L1
S/L2
T/L3
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