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Smart Infrastructure
Basic Documentation LME7...
CC1P7105en
11 Multistage or modulating mode with actuator
24.07.2020
11.4
Load controller inputs
11.4.1 3-position
step
input terminal X5-03
The load controller input is valued by making a 2-out-of-3 section. This means that to
trigger a control action via the actuator outputs, an ON or OFF signal must be identified
within at least 2 successive cycles. As a result of this sampling process, an ON or OFF
signal must be present for a time between minimum 0.3 seconds and maximum
0.45 seconds to produce an output signal change at the LME7
11.4.2
Analog input terminal X65 (LME71/LME73 only)
The LME7 handles the analog input signals with the help of an 8-bit A/D converter.
11.4.3
Selection source preset output analog / 3-position
step input (parameter 654)
(LME71/LME73 only)
The following input signals can be selected and handled via parameter 654
3-position step input (feedback potentiometer ASZxx.3x required / depending on
the program sequence)
0...10
V
0...135
0...20
mA
4...20 mA with a non-alterable lockout at I <4 mA AZL2: Loc: 60)
4...20
mA
11.4.4
Actuator output terminal X2-09
The actuators are powered by mains voltage delivered directly via the LME7
11.4.5
Setting the maximum running time of the actuator
(parameter 259 / 260 timeout)
Parameters 259 and 260 are used to set the actuator's running time in accordance with
the type of actuator used. The time set must at least correspond to the running time
required by the actuator to travel from the fully closed to the high-fire position (e.g. 30
seconds for 90° or more). If the actuator does not reach its position within this period of
time, the LME7 will initiate lockout.
