Danfoss VLT Refrigeration Drive FC 103 Design Manual page 66

System Integration
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INFO, TEST, and RESET keys.
Fuses
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Fuses are recommended for fast-acting current-
overload protection of the frequency converter.
Fuse protection limits frequency converter
3 3
damage and minimises service time in the event
of a failure. Fuses are required to meet marine
certification.
Disconnect
•
A door-mounted handle allows for the manual
operation of a power disconnect switch to enable
and disable power to the frequency converter,
increasing safety during servicing. The disconnect
is interlocked with the enclosure doors to prevent
them from being opened while power is still
applied.
Circuit breakers
•
A circuit breaker can be remotely tripped but
must be manually reset. Circuit breakers are
interlocked with the enclosure doors to prevent
them from being opened while power is still
applied. When a circuit breaker is ordered as an
option, fuses are also included for fast-acting
current overload protection of the frequency
converter.
Contactors
•
An electrically controlled contactor switch allows
for the remote enabling and disabling of power
to the frequency converter. If the IEC emergency
stop option is ordered, the Pilz Safety monitors
an auxiliary contact on the contactor.
Manual motor starters
Provide 3-phase power for electric cooling blowers often
required for larger motors. Power for the starters is
provided from the load side of any supplied contactor,
circuit breaker, or disconnect switch and from the input
side of the Class 1 RFI filter (optional). Power is fused
before each motor starter, and is off when the incoming
power to the frequency converter is off. Up to 2 starters
are allowed (1 if a 30 A, fuse-protected circuit is ordered).
Motor starters are integrated into the frequency converter's
Safe Torque Off circuit.
Unit features include:
•
Operation switch (on/off).
•
Short circuit and overload protection with test
function.
•
Manual reset function.
30 A, fuse-protected terminals
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3-phase power matching incoming mains voltage
for powering auxiliary customer equipment.
•
Not available if 2 manual motor starters are
selected.
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VLT Refrigeration Drive FC 103
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24 V DC supply
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External temperature monitoring
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Serial communications
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VLT
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VLT
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Danfoss A/S © 08/2015 All rights reserved.
Terminals are off when the incoming power to
the frequency converter is off.
Power for the fuse-protected terminals is
provided from the load side of any supplied
contactor, circuit breaker, or disconnect switch,
and from the input side of the Class 1 RFI filter
(optional).
5 A, 120 W, 24 V DC.
Protected against output overcurrent, overload,
short circuits, and overtemperature.
For powering customer-supplied accessory
devices such as sensors, PLC I/O, contactors,
temperature probes, indicator lights, and/or other
electronic hardware.
Diagnostics include a dry DC-ok contact, a green
DC-ok LED, and a red overload LED.
Designed for monitoring temperatures of external
system components, such as the motor windings
and/or bearings. Includes 8 universal input
modules plus 2 dedicated thermistor input
modules. All 10 modules are integrated into the
STO circuit and can be monitored via a fieldbus
network (requires the purchase of a separate
module/bus coupler). Order an STO brake option
to select external temperature monitoring.
PROFIBUS DP-V1 MCA 101
PROFIBUS DP-V1 gives wide compatibility, a high
level of availability, support for all major PLC
vendors, and compatibility with future versions.
Fast, efficient communication, transparent instal-
lation, advanced diagnosis, and parameterisation
and auto-configuration of process data via GSD
file.
Acyclic parameterisation using PROFIBUS DP-V1,
PROFIdrive, or Danfoss FC profile state machines,
PROFIBUS DP-V1, master class 1 and 2.
Ordering numbers:
- 130B1100 uncoated.
- 130B1200 coated (Class G3/ISA
S71.04-1985).
®
LonWorks for ADAP-KOOL MCA 107
Continuous exchange of messages between a
number of processors.
Enables direct communication between individual
network devices.
MG16G202