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Cold location controller for top-hat rail installation with enhanced operating modes for 4 cold locations

2

CRC-BL_V2.4.0_PI_2021-02_DE

Subject to technical changes

CRC-BL

1.3 

Safety instructions

Writing conventions

WARNUNG

Avoid the described hazard: otherwise, 

electric voltage

 represents a danger that could lead to

fatal 

or 

serious

 bodily injury.

VORSICHT

Avoid the described hazard: otherwise 

minor

 or 

medium

 bodily injury or damage to property will

result.

For your safety

For safe operation and to avoid personal injury and equipment damage through operator error, always
read these instructions, become familiar with the device, and follow all safety instructions on the prod-
uct and in this document, as well as the safety guidelines of Wurm GmbH & Co. KG Elektronische
Systeme. Keep these instructions ready to hand for quick reference and pass them on with the device
if the product is sold.
Wurm GmbH & Co. KG Elektronische Systeme accepts no liability in the case of improper use or use
for purposes other than the intended purpose.

WARNUNG

DANGER TO LIFE FROM ELECTRIC SHOCK AND/OR FIRE!

Switch off the power to the entire plant when carrying out installation, wiring or removal work.
Otherwise a mains voltage and/or external voltage may still be present even if the control voltage
is switched off. Always remove both power plugs (L and N).

The wiring of the device must be carried out only by qualified electricians.

Use only the correct tools for all work.

Check all wiring after connection.

Take note of the maximum loads on all connections.

Never expose the device to moisture, for example due to condensation or cleaning agents.

Take the device out of operation if it is faulty or damaged and is therefore compromising safe
operation.

Do not open the device.

Do not repair the device yourself. If the device requires repairs, send it in with an exact descrip-
tion of the fault.

VORSICHT

ELECTROMAGNETIC INTERFERENCE CAN CAUSE FAULTS!

Always use shielded data cables and place them far away from power lines.

Target group

This manual is intended for "service technician" personnel.

Intended use

The CRC-BL is a cold location controller for max. 4 cold locations.

Wurm Infocenter

paperless info

Содержание CRC-BL

Страница 1: ...r defrost hot gas defrost and cool gas defrost Defrost control by real time clock with power reserve Simple defrost synchronisation of multiple controllers master slave 8 defrost times by integrated weekly timer Digital inputs for setpoint switchover manual defrost initiation and door contact Option to select 3 point control Control sensor weighting can be set separately for day operation and nigh...

Страница 2: ...or purposes other than the intended purpose WARNUNG DANGER TO LIFE FROM ELECTRIC SHOCK AND OR FIRE Switch off the power to the entire plant when carrying out installation wiring or removal work Otherwise a mains voltage and or external voltage may still be present even if the control voltage is switched off Always remove both power plugs L and N The wiring of the device must be carried out only by...

Страница 3: ... wurm de 1 4 Connection diagram Fig 2 Connection diagram Version Date V2 4 0 and higher 2021 02 Documentation status Pos 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 floating contact 230V 4 2 A 3 Power supply L 230V 50Hz 4 Power supply N Neutral conductor 5 Digital inputs Di1 Di4 Dependent on cold loca...

Страница 4: ...p hat rail 2 B Push the device downwards onto the top hat rail The device snaps into place with the fastening safety catch a on the top hat rail You can now connect the device Fig 3 Top hat rail installation 1 6 Technical data Power supply 230V 10 15 max 8VA Display 1 x display with plain text display 2 x green LED C BUS data traffic CAN Tx CAN Rx C BUS communication 3 conductor CAN bus interface ...

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