MSA SUPREMA - Page 34

REV 0, June 2005Page 34
Operation Manual SUPREMA
3. Description of the System
MRO-8-TS Module: Function of the Module
• The module is controlled by an MGO module operating via the MRC module.
• 8 relays for alarms or control functions.
• 1 changeover contact per relay (230 VAC/3 A) connected to terminals.
• The relays can be inhibited by the LOCK function (no alarm). The LOCK function can be
controlled via the MRC-TS module.
MRO-8-TS Module: Relay Assignment
The first 8 outputs of the system are allocated to the common alarm signals. The other outputs
can be assigned to any desired signal.
Relay 1: 1
st
Alarm
Relay 2: 2
nd
Alarm
Relay 3: 3
rd
Alarm
Relay 4: 4
th
Alarm
Relay 5: signal failure (sensor)
Relay 6: horn
Relay 7: Inhibit
Relay 8: power supply failure
MRO-16-TS Module (Relay Output Module (Redundant))
For systems that are designed for redundancy, the MRO-16-TS module is used. To transmit a
message, the working contacts of 2 relays are connected in series and connected to 2 terminals.
The relays are controlled by different MGO modules and are configured in such a way that the
relay is de-energised when an alarm is triggered (normally energised).
MRO-16-TS-MODULE: Module Function
• Relay module for a redundant system.
• 2 x 8 relays for alarms or control functions.
• The module is controlled by 2 MGO modules, operating via the MRC module.
• The two working contacts of 2 relays are connected in series on the MRO-16-TS module
and connected to 2 terminals. In an alarm situation, one or both contacts open.
• Relays energised = no alarm. The relays are de-energised when an alarm is triggered at
one or more measuring points.
• Controlled by 2 separate MGO modules.
• Relays can be inhibited via the MRC-TS module (no alarm).
MRO-16-TS-Module: Relay Assignment
The first 8 outputs of the system are allocated to the common alarm signals. The other
outputs can be assigned to any desired signal.
Relay 1: 1
st
Alarm
Relay 2: 2
nd
Alarm
Relay 3: 3
rd
Alarm
Relay 4: 4
th
Alarm
Relay 5: signal failure (sensor)
Relay 6: horn
Relay 7: Inhibit
Relay 8: power supply failure