REV 0, June 2005 Page 197
Operation Manual SUPREMA
7. Maintenance and Service
Attention: When replacing MPI modules, always electrically separate the connected
sensor to prevent damage as a result of uncompensated sensor current.
When replacing MCI modules, it is not necessary to repeat the adjustment steps, but it is
necessary to make sure that the modules are configured correctly.
(see section 5.3.3).
Replacement of the MGO Module
It is necessary to turn off the system to replace the MGO module. To prevent alarms and
malfunction messages, the relays must be inhibited directly on the MRC-TS module (see section
5.7.2 Relay Inhibit).
Replacement of the MAO Module
It is necessary to turn off the system to replace the MAO module. The failure message can be
prevented from being sent any farther by inhibiting the relays on the MST module (MOR-8
module) or on the MRC-TS module (MRO-8-TS module)
(see section 5.10.7 LOCR Terminal
or section 5.7.2 Relay Inhibit).
7.4.2 Connection Modules
Replacement of MAT/MAT-TS, MUT, and MGT-40-TS Modules
These modules can be replaced without interrupting the system, although the function in question
(sensor input, relay driver or analog output) is not available during the replacement.
When the modules which implement sensor connections are replaced, the assigned measure
points must be locked to prevent alarms or failure messages
(see section 6.3.6.2 Set the Input
Parameters).
When it is necessary to replace a MUT module to which an MRC-TS module is connected, the
connected relays can be locked by using the LOCK connection on the MRC-TS module, provided
that the MRC-TS module has a voltage supply separate from the system
(see section 5.7.2
Relay Inhibit)
Replacement of MRO-8/MRO-8-TS Modules
It is not necessary to turn off the system to replace MRO-8/MRO-8-TS modules. Alarm devices
which are connected to the modules must be deactivated, however (especially when the relays
are operating Normally energised).
7.5 Changing the Password
f the current password is to be changed, a new password can be entered in the following way:
• Use the cursor key in the “Setup/System” menu to select the field “Password”.
• Press the Enter key; you will be asked to enter the current password or to actuate the key
switch.
Note: If you have forgotten the current password, a new password can be entered
by actuating the key switch. If there is no key switch to close, connect terminal
contacts 1 (GND) and 2 (PSW) on the MST module
(see section 5.10.8 Password
Connection) with a wire jumper, provided that these terminals can be accessed
safely.
To Next Page
Loading...
