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Function
Description Function E2
For activation of a second control circuit
(only possible in certain Modes (see operation with second control circuit)
Temperature
(8E)
Temperature control, pre-settings and sensor selection correspond to mode
2.01
Cold-Pressure
(9E)
Pressure control condensers, pre-settings and sensor selection correspond to mode
3.01
Cold-Temperature
(10E)
Pressure control condensers with input for refrigerant, pre-settings, sensor selection
and input for refrigerant corresponding to mode
3.02
Air Pressure
(11E)
Pressure control air conditioning, pre-settings and sensor selection correspond to
mode
4.01
Air
fl
ow
(12E)
Volume control, pre-settings, sensor selection and K-factor for inlet ring correspond to
mode
5.01
Air speed
(13E)
Air velocity control, pre-settings correspond to mode
6.01
Outdoor temperature
(15E)
No function!
AI3 ... AI6 = analogue inputs in the IO Setup
Function
Description Function
OFF
no function (factory setting)
For operating modes
1.10
+
1.11
Ext. Setpoint
1E
Operation with a second setting signal (switch over
“
E1
”
<->
“
E2
”
via
fl
oating contact)
Ext. Manual mode
(2E)
External manual operation via external signal (0 - 10 V). Switch over between settings
on the device and external manual operation via digital input.
Measurement
(7E)
Measurement value e.g. Measurement value e.g. for limit indication, display in Info
menu
“
E2 Actual
”
.
Outdoor temperature
(15E)
No function!
DO = digital outputs
Function
Designation
OFF
No function
Relays remain always de-energized
Operating indication
(1K)
Operating indication (factory setting for
“
K1
”
, non inverting).
Operation without fault, reports enable
“
OFF
”
Fault indication
(2K)
Fault indication (factory setting for
“
K2
”
, non inverting).
Pulled up in operation without fault, with release
“
OFF
”
not dropped out.
Drops out in case of line and device fault and external fault at the digital input. Depend-
ing on programming in event of sensor failure.
External error
(3K)
External fault separate with message at digital input (factory setting if terminals
bridged)
Limit modulation
(4K)
Limit modulation
Exceeding or falling below limits for modulation
Limit E1
(5K)
Limit
“
E1
”
When over or falling below limits for input signal
“
E1
”
Limit E2
(6K)
Limit
“
E2
”
When over or falling below limits for input signal
“
E2
”
(14K)
to
(18K)
no function
Operating Instructions
UNIcon MODBUS Master
L-BAL-E255-GB 1901 Index 001
Part.-No.
108/121