Carel iJW handleiding
Handleiding
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43
ENG
iJW +0300103EN rel. 1.1 - 31.03.2025
Index
Parallel control
If the second compressor is confi gured as an auxiliary parallel compressor, control behaviour and activation of the two outputs
are shown in the fi gure. The delay set by parameter c11 is always observed.
Par. Description Def Min Max UOM User User terminal
c11 Second compressor start delay 4 0 250 s S NO
DOw Assign auxiliary parallel compressor digital output - see DOA ... 0 6 - S NO
300100_128_R01
Sreg
DIRECT
St
ON
OFF
ON
OFF
Sreg
REVERSE
COMP2 COMP2
CMP CMP
rd
St
ON
OFF
ON
OFF
rd
Ref. Description
St Set point
rd Diff erential
Sreg Control probe
CMP Compressor request
CMP2 Auxiliary parallel compressor request
Fig. 7.f
7.6.2 Dead band control
If a digital output has been confi gured for reverse control in the dead band (par. DOv), control takes into account a dead band
around the set point, with an amplitude that can be set using parameter rn. The reverse output is activated with a diff erential set
using parameter rr. Control with dead band varies according to the control mode selected using parameter r30 and whether or
not the second auxiliary or parallel compressor is available. The fi gures show the diff erent behaviour with or without an auxiliary
compressor; the behaviour with parallel compressor is similar to when the main compressor only is used.
For the auxiliary compressor, the delay set by parameter c11 is always observed.
Par. Description Def Min Max UOM User User terminal
r30 Control mode: 0 = direct with defrost; 1 = direct; 2 = reverse 0 0 2 - S NO
rn Dead band 4.0 /
7.2
0.0 60.0 /108 °C/°F S NO
rr Reverse output diff erential 2.0 /
3.6
0.0 20.0 /36 °C/°F S NO
DOv Assign reverse digital output with dead band. See DOA. 0 0 6 - S NO
Direct control in dead band without auxiliary compressor
300100_129_R01
Sreg
ON
OFF
REV CMP
rr rn/2
St
rdrn/2
Ref. Description
St Set point
rd Diff erential
rn Dead band
rr Reverse output diff erential
Sreg Control probe
CMP Compressor request
REV Reverse output request in dead band
COMP2 Auxiliary compressor request (par. DOk or par. DOy)
Fig. 7.g
Direct control in dead band with auxiliary compressor
300100_130_R01
Sreg
ON
OFF
REV CMP CMP2
rr rn/2
St
rd/2 rd/2
Ref. Description
St Set point
rd Diff erential
rn Dead band
rr Reverse output diff erential
Sreg Control probe
CMP Compressor request
REV Reverse output request in dead band
COMP2 Auxiliary compressor request (par. DOk or par. DOy)
Fig. 7.h
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Productinformatie
| Merk | Carel |
| Model | iJW |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 14964 MB |
