Cold location controller for top-hat rail installation with enhanced operating modes for 4 cold locations
CRC-BL_V2.1.0_PI_2019-11_EN 3
Subject to technical changes
CRC-BL
Software revision and validity of documentation
Any software versions not listed are special solutions for individual projects and are not described in detail in this
document. This document automatically ceases to be valid if a new technical description is issued.
Manufacturer: Wurm GmbH & Co. KG Elektronische Systeme, Morsbachtalstraße 30, D-42857 Remscheid
You can find more information on our website at www.wurm.de
.
1.4 Connection diagram
Fig. 2: Connection diagram
Software version
V2.1.0 – 2019-11 Documentation status
Item
Designation Function
1 C-BUS interface Data communication (H = CAN high, S = shield,
L = CAN low)
2 Output relays K1...K4 Dependent on cold location type, potential-free contact,
230V~, 4(2)A
3 Power supply for L 230V~/50Hz
4 Power supply for N Neutral conductor
5 Digital inputs Di1...Di4 Dependent on cold location type
6 Defrost bus Defrost synchronisation
7 Sensor inputs S1...S4 Temperature sensor
12
13
14
15 16
17
18
11
22
23
24
25 26
27
28 29
21
38 37 36 35 34 33 32 3139
4
3
21
12
13
14
15 16
17
18
11
22
23
24
25 26
27
28 29
21
38 37 36 35 34 33 32 3139
CRC-BL
Frigoentry Blueline
2sec.
d
c
1
2
4
6
3
5
7
S2
S3
S4
S1
GND
Di2
Sync.
Di3
N
Di1
Di4
L
K1
K2
K3
K4
H
0V
S
L
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