BEER Cold Rack / Refrigerated Display Cabinets, Инструкция по установке и программированию

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Beer Grill AG Beer Grill GmbH
Allmendstrasse 7 Tel. +41 56 618 7800 Körnerstrasse 14 a Tel. +49 71 61 659 876 info@beergrill.com
CH
– 5612 Villmergen,
Switzerland
Fax +41 56 618 7849 D
– 79539 Lörrach,
Germany
Fax +49 71 61 659 879 www.beergrill.com
Assembly-Programming-Instructions_Cold-Rack_e_05-10-2018
Page 51
Y-- Control loop 2
(password-protected)
Y0 Sensor assignment for an independent 2nd control loop (thermostat)
This parameter is used to set which sensor input is to be assigned to the 2nd control loop.
Y1 Control loop 2: Setpoint
The setpoint for the 2nd control loop (thermostat) is set here. If a key is parametrised accordingly, the setpoint can also be
displayed and set directly by the key.
Y2 Control loop 2: Absolute or DeltaW setpoint
The value in Y1 is used in the setting Y2 = 0 as the absolute setpoint or, with Y2 = 1, as the sum of Y1 and the current
cooling space setpoint (c1 , c2 or c3 ) for controlling control loop 2.
Y4 Control loop 2: Switching direction
Heating contact or cooling contact.
Y5 Control loop 2: Hysteresis
This parameter specifies the control hysteresis. A small hysteresis allows more precise control, but also leads to more
frequent switching of the relay.
Y6 Control loop 2: Hysteresis mode
This parameter can be used to select if the hysteresis at the respective switching point is symmetrical or takes effect on one
side. A hysteresis programmed on one side is applied below the setpoint for the heating function [
Y4 = 0 ] and above it for
the cooling function [ Y4 = 1 ]. If the hysteresis is symmetrical, there is no difference.
Y7 Control loop 2: Setpoint limit, top
Y8 Control loop 2: Setpoint limit, bottom
These parameters limit the setting range of the Y1 setpoint so that the end user does not set any invalid values.
Y9 Control loop 2: Function in the event of a sensor fault
This specifies if the controlled output contact opens or closes in the event of a fault in the assigned sensor.
Y10 Control loop 2: Defrost interval
The defrosting interval determines the time after which defrosting is initiated. At the start of defrosting, the defrosting interval
is restarted, resulting in periodic defrosting with a fixed time interval.
Y11 Control loop 2: Defrost time limit
This sets the maximum time available for defrosting.
Y99 Password for parameter level Y--
This parameter is used to set the password for parameter level Y-- .