8.2.3 Checking binary input and output circuits
8.2.3.1 Binary input circuits
Preferably, disconnect the binary input connector from the binary input cards. Check
all connected signals so that both input level and polarity are in accordance with the
IEDs specifications.
8.2.3.2 Binary output circuits
Preferably, disconnect the binary output connector from the binary output cards.
Check all connected signals so that both load and voltage are in accordance with the
IED specifications.
8.3 Authorizations
8.3.1 User authorization
The user categories have been predefined for LHMI and WHMI, each with different
rights and default passwords.
Passwords are settable. LHMI password must be at least four and WHMI password
at least nine characters. Maximum number of characters is 20 for the WHMI password
and 8 for the LHMI password. Only the following characters are accepted:
• Numbers 0-1
• Letters a-z, A-Z
• Space
• Special characters !"#%&'()*+´-./:;<=>?@[\]^_`{|}~
User authorization is disabled by default and can be enabled either
via the LHMI or WHMI Main Menu/Configuration/
Authorization.
Table 18: Predefined user categories
Username
LHMI
password
WHMI password User rights
VIEWER 0001 remote0001 Only allowed to view
OPERATOR 0002 remote0002 Authorized to make operations
ENGINEER 0003 remote0003 Allowed to change IED parameters, but no
operation rights
ADMINISTRATOR 0004 remote0004 Full access
1MRS756499 A Section 8
Commissioning
RED615 85
Operation Manual
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