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Requirements
•
Gas cooler control via Modbus (ebm-papst fan) => DIP5 = ON, see chapter
.
•
Z2 pressure transmitter (analogue input 3, terminals 41/42) must be connected, see chapter
assignment of the analogue inputs
Parametrisation
The following parameters are required for the control of the Z2 compressor. The Z2 compressors transfer the
refrigerant from the LT suction side to the NT suction side.
Me
nu
Z2-Reg.
Pos: XXXXX
Description
Input
Def
ault
Di
m.
3-1 Drucktrans
m.Z2
Activation of the Z2 pressure transmitter at the analogue input 3 (terminals 41/42). The Z2
to actual value measured by the pressure transmitter is sent to all case controllers.
Info:
Must be set to
NO
in order to activate LT compressor in Z2 regulation (menu 3-2-4)!
Y/N
N -
3-2-
4
Z2
Regulation
→
Z2 regulation selection menu.
The parameter must be set to TK-Verdichter for activation of the booster operation.
Info:
•
The Z2 pressure transmitter is automatically activated at the analogue
input 3 (terminals 41/42) if TK-Verdichter is selected.
•
The parameter Drucktransm.Z2 (menu 3-1) is not displayed if
TK-
Verdichter is selected
.
OFF
ECO-
Betrieb
TK-
Verdich
ter
OFF -
3-2-
4
Z2-
Standzeit
Minimum off time of Z2 operation after switching off the last compressor
10..360 300 sec
.
3-2-
4
to Tag
to setpoint for daytime operation
-50..-16 -38 °C
3-2-
4
to Nacht
to setpoint for night operation
-50..-16 -38 °C
3-2-
4
Anz. Z2-
Verdichter
Number of Z2 compressors
0..2
1
-
3-2-
4
Basisz.LeiSt
u. ON →
Display basic times t
b
ON
→
Screen
3-2-4-a
Screen
3-2-4-b
Screen
3-2-4-c
Screen
3-2-4-d
3-2-
4
Vari.Z.LeiSt
u. ON →
Display of the variable times t
v
ON
→
3-2-
4
Basisz.LeiSt
u. OFF →
Display basic times t
b
OFF
→
3-2-
4
Vari.Z.LeiSt
u. OFF →
Display of the variable times t
v
OFF
→
Содержание VS 3015 C
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