32
Entek IRD 6652 DSP Protection Monitor
Configuration
For failsafe operation, the following are true:
l
Under normal (nonalarm with power applied to the unit) conditions, the relay closes the
circuit between the common and the N/O (normally open) terminals.
l
Under alarm or loss-of-power conditions, the relay changes state to close the circuit
between the common and N/C (normally closed) terminals.
The following are true of a relay in nonfailsafe condition:
l
The relay is not energized when power is applied to the unit.
l
The relay in a nonalarmed condition does not have power applied to the coil.
l
In alarmed condition, power is applied to the relay coil, causing the relay to change
state.
For nonfailsafe operation, the following are true:
l
Under normal (nonalarm) conditions, the relay closes the circuit between the common
and the N/C (normally closed) terminals.
l
Under alarm conditions, the relay changes state to close the circuit between the
common and the N/O (normally open) terminals.
DELAYS submenu
The DELAYS submenu has the following options. These options apply to both channels of
the monitor.
Note:
The GLOBAL alarm delays do not affect the System OK relay.
N/C
N/O
COM
N/C
N/O
COM
N/C
N/O
COM
N/C
N/O
COM
Factory menu
→
RANGES
→
RELAYS
→
DELAYS
STARTUP
1.0
SECS
EXIT
SET
GLOBAL
1.0
SECS
GLOBAL
Choose the alarm delay that applies to all alarms (0.0–30.0 sec). The alarm
must persist for this length of time before the monitor acknowledges the
alarm and changes any relays.
STARTUP
Choose the length of time during which the chosen start-up action applies
(0.0–30.0 sec). The start-up period begins when terminal 11 (START UP
INHIBIT/MULTI) is momentarily connected to terminal 47 (DIGITAL
COMM). The start-up action is set with the AS: ACT option on the
BND: ACT submenu (page 25).
EXIT
Return to the RELAYS submenu. The monitor remembers the current
values for menu options, but does not write them to memory until you exit
the Factory menu.
