ECKELMANN Case Controller UA 4 E Series - Page 409

Firmware V3.13
21.04.2021
409/466
ANALOG INPUTS POS: XXXXX Entry Default
AIN2 Send CAN This parameter is used to instruct the case
controller to make the locally measured value of
analogue input 2 (AIN2) available via CAN bus.
ONLY possible when the parameter AIN2 active = Y
(Y,N) N
AIN2 Rcv. CAN xx CAN bus address of the remote case controller
which provides the locally measured analogue
value.
1..99 --
AIN2 Rcv. Inp x This parameter is used to specify the zone from
which the locally measured analogue value is
taken.
(refers to the parameter AIN2 Rcv. Inp)
1,2 2
RfrSy. tcLT xxx Pack controller CAN bus address for receipt of tc
via CAN bus
Can also be used as backup option in the event of
the failure of the local pressure transmitter
Deactivated with '--'
Canonlybeusedwhenparameter”Fct.AIN2”set
to”tcLT”.
--, 1..9 --
tcZ2-max xxx°C tc maximum value for the dynamically determined
tc setpoint
-10..10 -2 °C
tcZ2-min xxx°C tc minimum value for the dynamically determined tc
setpoint
-20..10 -10 °C
tcZ2-ramp/m xxxK Maximum increase / change of the dynamically
evaluated tc setpoint
Dynamic evaluation of the tc setpoint switched off
with '--'; in this case the setpoint R4.x is used.
Canonlybeusedwhenparameter”Fct.AIN2”set
to”tcLT”.
--1..100 --
tcZ2-toZ1df xxxK Difference between to and tc for the dynamic
determination of the tc setpoint
0..20 5 K
*Supported refrigerants: R404A, R744 (CO2), R134a, R410A, R717 (NH3), R22, R290, R407C, R507, R1270,
R402A, R502, R407F, R422A, R422D, R408A, R407D, R407A, R427A, R438A, R152a, R170, R600, R600a,
R449A, R450A, R448A, R455A, R447B, R1234ze, R1233zd, R1234yf, R513A
Praxistipusingtheexampleofthe”connectionofapressuretransmitter-1..7bar”:
Here the indication on the pressure transmitter is clear (-> -1 bar) relative to the ambient pressure The
adjustment of the pressure transmitter in the controller is carried out using absolute pressure values
(the absolute pressure cannot be negative). In order to parameterise the above pressure transmitter
with the relative pressure indication - 1 bar (at 4 mA, i.e. 0 V) at 7 bar ( at 20mA, i.e. 10 V) the ambient
pressure(1bar)mustbeadded.
The entry is carried out as follows: 0..8 bar.
