Danfoss EKC 326A User Manual page 16

Valve function in alarm situations
Error Alarm message
EKC supply interrupted none
EKC Standby – Main A45 – Standby mode
Switch OFF
Sgc interrupted E15 – Sgc o.c.
Sgc short circuited E16 – Sgc s.c.
Pgc transmitter error E20 – Pgc input err
Prec transmitter error E39 – Prec input err
StepMotor error A43 – Step motor err
Pgc Max limit exceeded A82 – PgcMax alarm
Pgc Min limit exceeded A83 – PgcMin alarm
Prec Min limit exceeded A84 – PrecMin alarm
PgcRef Alarm A94 – PgcRef alarm
PrecRef Alarm A95 – PrecRef alarm
EKC HW error E1 – Controller fault
"Emergency cooling"
The valve's average opening degree for the last six hours is
regularly saved. This opening degree is used if there is a need for
emergency cooling.
List of literature
Instructions RI8NG (extract from this manual).
Here you can see how controllers are mounted and
programmed.
Installation guide for extended operation
Here you can see how a data communication
connection to ADAP-KOOL® Refrigeration control
systems can be established.
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
16
ICMTS action (Vhp)
EKC AO remains 0 V – ICMT closes if ICMTS has
battery back-up
ICMTS closes
ICMTS regulates with "Emergency cooling"
ICMTS regulates with "Emergency cooling"
ICMTS regulates with "Emergency cooling"
No change – ICMTS control continues
No change – ICMTS control continues
No change – ICMTS control attempts to lower
Pgc
No change – ICMTS control attempts to raise Pgc
No change – ICMTS control attempts to maintain
Pgc
No change – ICMTS control attempts to maintain
Pgc
No change – ICMTS control attempts to maintain
Pgc
No change – ICMTS control continues
RC8AC
Manual RS8FM602 © Danfoss 02-2016
ETS action (Vgbp)
No change in opening degree
ETS closes to 'Vgbp OD Min' setting
No change – ETS control attempts to maintain
Prec
No change – ETS control attempts to maintain
Prec
No change – ETS control attempts to maintain
Prec
ETS regulates with "Emergency cooling"
ETS closes to 'Vgbp OD Min' setting
No change – ETS control attempts to maintain
Prec
No change – ETS control attempts to maintain
Prec
No change – ETS control attempts to raise Prec
No change – ETS control attempts to raise Prec
No Change – ETS control attempts to raise Prec
No change – ETS control continues
Installation considerations
Accidental damage, poor installation, or site conditions, can give
rise to malfunctions of the control system, and ultimately lead to a
plant breakdown.
Every possible safeguard is incorporated into our products to
prevent this. However, a wrong installation, for example, could still
present problems. Electronic controls are no substitute for normal,
good engineering practice.
Danfoss will not be responsible for any goods, or plant compo-
nents, damaged as a result of the above defects. It is the installer's
responsibility to check the installation thoroughly, and to fit the
necessary safety devices.
EKC 326A