Access; Options And Accessories - Danfoss VLT AQUA Drive FC 202 Design Manual

System Integration
3 3
1 Backplate
Figure 3.25 Mounting with Backplate
For adjustable frequency drives with protection rating IP66,
use a fibre or nylon washer to protect the epoxy coating.
1 Backplate
2 Adjustable frequency drive with IP66 enclosure
3 Backplate
4 Fiber washer
Figure 3.26 Mounting with Backplate for Protection Rating
IP66
68
®
VLT AQUA Drive FC 202
1
2
3
1
4
Danfoss A/S © 09/2014 All rights reserved.

3.6.3 Access

To plan accessibility for cabling before mounting, refer to
the drawings in chapter 8.1 AC Line Input Connection
Drawings (3-phases) and chapter 8.2 Motor Connection
Drawings.

3.7 Options and Accessories

Options
For ordering numbers, see chapter 6 Type code and
Selection
Line power shielding
•
®
Lexan shielding mounted in front of incoming
power terminals and input plate to protect from
accidental contact when the enclosure door is
open.
•
Space heaters and thermostat: Mounted on the
cabinet interior of F frames, space heaters
controlled via automatic thermostat prevents
condensation inside the enclosure. The
thermostat default settings turn on the heaters at
10 °C (50 °F) and turn them off at 15.6 °C (60 °F).
RFI filters
•
Adjustable frequency drive feature integrated
Class A2 RFI filters as standard. If additional levels
of RFI/EMC protection are required, they can be
obtained using optional Class A1 RFI filters, which
provide suppression of radio frequency
interference and electromagnetic radiation in
accordance with EN 55011.
Residual current device (RCD)
Uses the core balance method to monitor ground fault
currents in grounded and high-resistance grounded
systems (TN and TT systems in IEC terminology). 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, which requires an external
window-type current transformer (supplied and installed by
the customer).
•
Integrated into the adjustable frequency drive's
safe torque off circuit
•
IEC 60755 Type B device monitors, 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 key
MG20N622