LS ELECTRIC LSLV-H100 Series, User Manual

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187
Learning Advanced Features
5.10 Damper Operation
A damper is a device that controls the flow in a ventilation system. If a fan and a damper are
used together in a system, the inverter may be configured to operate according to the
damper’s operation status. During a damper operation, one of the relay outputs
OUT-31
–35
(Relay 1
–5) may be set to ‘33 (Damper Control)’ to output a signal based on the damper’s
operation status. O
ne of the multi-function terminal inputs (IN-65
–71) may also be set to ‘45
(Damper Open)’ to receive the damper status input. The inverter starts operating when both
the run command and the damper open signal are turned on (relay output setting at
OUT-
31
–35 is not necessary)
.
When the time difference between the inverter run command and the damper open signal
exceeds the delay time set at AP2-45 (Damper DT), damper error (Damper Err) occurs. If
the damper open relay output and damper control input are set at the same time, and if the
damper open signal is not received until the time set at AP2-45 (Damper DT) is elapsed
(when the inverter is not operating), damper error (Damper Err) occurs.
Group Code Name LCD Display Parameter Setting Setting Range Unit
AP2 45
Damper check
time
Damper DT - 0.1
–600.0
sec
IN 65-71
P1
–7 Px
terminal
configuration
P1
–P7
Define
45
(Damper open)
- -
OUT 31-35
Multi-function
relay 1
–5
Relay 1
–5
33
(Damper Control)
- -
Damper Operation Setting Details
Code Description
AP2-45 Damper DT
Sets the damper open delay time.
Detects the inverter run command or the damper open signal
(whichever is received first) and outputs a damper error (Damper Err) if
the other signal is not received until the time set at AP2-45 elapses.
IN-65
–71 P1–7
define
Sets one of the multi-
functional terminals to ’45 (Damper Open)’ to
enable damper operation.
OUT-31
–35 Relay
1
–5
Sets one of the relay outputs to ’33 (Damper Control)’ to provide a
relay output when the inverter run command is turned on.