Installation Of E Load Share Option; Enclosure Type F Panel Options; Enclosure Type F Options - Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual

Mechanical Installation

3.4.12 Installation of E Load Share Option

The load share option can be installed on enclosure size
E2.
3 3
Ordering information
•
Enclosure type E1/E2: 176F1843

3.5 Enclosure Type F Panel Options

3.5.1 Enclosure Type F Options

Space heaters and thermostat
Mounted on the cabinet interior of enclosure size F
frequency converters, space heaters controlled via
automatic thermostat help control humidity inside the
enclosure. This control extends the lifetime of frequency
converter components in damp environments. The
thermostat default settings turn on the heaters at 10 °C
(50 °F) and turn them off at 15.6 °C (60 °F).
Cabinet light with power outlet
A light mounted on the cabinet interior of enclosure size F
frequency converters increases visibility during servicing
and maintenance. The housing light includes a power
outlet, which temporarily powers tools or other devices,
available in 2 voltages:
•
230 V, 50 Hz, 2.5 A, CE/ENEC
•
120 V, 60 Hz, 5 A, UL/cUL
Transformer tap set-up
If the cabinet light and outlet and/or the space heaters
and thermostat are installed, transformer T1 requires its
taps to be set to the proper input voltage. A 380-480/500
V frequency converter is initially set to the 525 V tap, and
a 525–690 V frequency converter is set to the 690 V tap.
This setting ensures that no overvoltage of secondary
equipment occurs if the tap is not changed before power
is applied. See Table 3.12 to set the proper tap at terminal
T1 located in the rectifier cabinet. For location in the
frequency converter, see Illustration 4.1.
Input voltage range [V]
380–440
441–490
491–550
551–625
626–660
661–690
Table 3.12 Setting of Transformer Tap
NAMUR terminals
NAMUR is an international association of automation
technology-users in the process industries, primarily
chemical and pharmaceutical industries in Germany.
Selecting this option provides terminals organised and
labelled to the specifications of the NAMUR standard for
frequency converter input and output terminals. This
34
Operating Instructions
Tap to select
400 V
460 V
525 V
575 V
660 V
690 V
Danfoss A/S © 08/2014 All rights reserved.
requires VLT PTC Thermistor Card MCB 112 and VLT
Extended Relay Card MCB 113.
RCD (residual current device)
To monitor ground fault currents in grounded and high-
resistance grounded systems (TN and TT systems in IEC
terminology), use the core balance method. There is a pre-
warning (50% of main alarm setpoint) and a main alarm
setpoint. Associated with each setpoint is an SPDT alarm
relay for external use. It requires an external "window-type"
current transformer (supplied and installed by customer).
•
Integrated into the frequency converter's safe-
stop circuit.
•
IEC 60755 Type B device monitors AC, pulsed DC,
and pure DC ground fault currents.
•
LED bar graph indicator of the ground fault
current level from 10–100% of the setpoint.
•
Fault memory.
•
[TEST/RESET].
IRM (insulation resistance monitor)
IRM monitors the insulation resistance in ungrounded
systems (IT systems in IEC terminology) between the
system phase conductors and ground. There is an ohmic
pre-warning and a main alarm setpoint for the insulation
level. Associated with each setpoint is an SPDT alarm relay
for external use.
NOTICE
Only 1 insulation resistance monitor can be connected to
each ungrounded (IT) system.
•
Integrated into the frequency converter's safe-
stop circuit.
•
LCD display of the ohmic value of the insulation
resistance.
•
Fault memory.
•
[INFO], [TEST], and [RESET].
IEC emergency stop with Pilz safety relay
IEC emergency stop with Pilz safety relay includes a
redundant 4-wire emergency-stop push-button mounted
on the front of the enclosure and a Pilz relay that monitors
it with the frequency converter's safe-stop circuit and the
mains contactor located in the options cabinet.
STO + Pilz Relay
STO + Pilz Relay provides a solution for the "Emergency
Stop" option without the contactor in F enclosure
frequency converters.
Manual motor starters
Manual motor starters provide 3-phase power for electric
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. Power is
fused before each motor start, and is off when the
incoming power to the frequency converter is off. Up to 2
MG11F502