Flush mounting local HMI - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Installation Manual - REX640 Protection and control - Relion Protection and Control - PCL4 - IEC - ANSI - 16.02.2023

REX640 Installation Manual
  1. Make a cutout for the LHMI according to the dimensional drawing.
    Figure 1. Making a cutout
    image/svg+xmlAB
    A
    188 ±1 mm (7.4016 ±0.03937 in)
    B
    151 ±1 mm (5.9449 ±0.03937 in)
  2. Mount the LHMI to the cutout with the installation brackets and screws.
    Figure 2. Mounting the local HMI to the cutout
    image/svg+xml321
    1
    LHMI
    2
    Installation brackets
    3
    Screws
  3. Tighten the screws evenly to 3.5 Nm ±5% (2.5815 ft-lb ±5%).
    Figure 3. Tightening the screws
    image/svg+xml1
    1
    Screws
Figure 4. Flush mounted local HMI
image/svg+xmlBADC
A
212.5 mm (8.3661 in)
B
177.5 mm (6.9882 in)
C
50.0 mm (1.9685 in)
D
7.6 mm (0.2992 in)