Instruction manual

4
module itself (input number = 0). READY indicator shall flash with low duty cycle ratio. The
module will return to the quiescent mode when the power is restored on the both inputs, and
after that the module transmits the Power Restored message over the RS-485 interface bus.
If, otherwise, Both Power Inputs Monitoring is set off, the power voltage can be applied to
any of the power inputs. The module enters the Power Failure mode only in case of power
failure at both power inputs and returns to the quiescent mode when the voltage is restored at
any of them. The events Power Failure and Power Restored are generated only for the
module itself (input number = 0).
1.4.4.2 If data are not communicated over the RS-485 interface within 1 s, the READY
indicator begins flashing once per second (provided that the power voltage is in norm). When
communication is restored the indicator is lit steady.
1.4.5 Statuses of relays are displayed by indicators 1 to 4. When a relay is switched off
(that is, normally closed contacts NC and COM are closed while normally open contacts NO
and COM are open), the relevant indicator is off too. When the relay is switched on (that is,
normally closed contacts NC and COM are open while normally open contacts NO and COM
are closed), the relevant indicator is on.
1.4.6 To be adjusted for specific operation requirements, the module supports
programming the following parameters stored in its non-volatile memory:
Parameter Description
Value
Range
Factory Value
1. Initial
Condition
The executive program,
executed automatically after
powering on (or resetting) the
module and on receiving a
Return to Initial Condition
command
1 (On),
2 (Off),
9 (Lamp),
10 (Alarm
Output)
relay 1
relay 2
relay 3
relay 4
2
(Off)
2
(Off)
2
(Off)
2
(Off)
2. Activation
Time
The time during which the
relay is active, for the
commands which imply a
limited activation time, if this
time is not received in the
command explicitly
0…255 s
relay 1
relay 2
relay 3
relay 4
60 s 60 s 60 s 60 s
3. On/Off
Events
Enables (disables) transmit-
ting events about relay’s
having activated/inactivated
On/Off
relay 1
relay 2
relay 3
relay 4
Off Off Off Off
4. Both Power
Inputs
Monitoring
Provides monitoring power
voltage at both power inputs
On/Off Off
5. Network
Address
The unique number of the
module within the RS-485
interface bus
1…127 127
1.4.6.1 The Initial Condition parameter of each relay defines the condition of the relay
just after powering on the module until a control command has been received from the