Presys DMY-2030 Light Technical Manual page 15

PRESYS
 Instruments
The state of the relay contacts illustrated in Figure 8 assume the instrument
turned off. If the power is on, the status (open or closed) depends on the SAFE setup
and if the instrument is in alarm condition or not. Table 2 shows the state of the relay
contacts in all conditions.
Power SAFE
Off ---
On Yes
On Yes
On No
On No
The factory setting for the relays is SAFE = NO for trip relays and
SAFE = YES for the others.
Fig. 8 - Output Connections
Relay 1
Alarm
Terminals
Condition
13 and 14
--- Open
No Closed
Yes Open
No Open
Yes Closed
DMY-2030-Light-5S-Energy
Relay 2 Relay 3
Terminals Terminals
15 and 16 17 and 18
Open Open
Closed Closed
Open Open
Open Open
Closed Closed
Relay 4
Terminals
20 and 21
Open
Closed
Open
Open
Closed
Installation
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