Switching On The Optyma; Tm Control Three-Phase; Compressor Activation/Deactivation Conditions; Manual Defrosting - Danfoss OPTYMA Operation And Maintenance Manual

OPTYMA Control three-phase
TM
Continued...
Variables Explanation
tA NO – NC alarm relay switching
AU Auxiliary/alarm relay control
(only on version with relay fitted)
StA Temp. setting for aux. relay
In1 Man-in-cold-room alarm
Select input INP1 on the board as compressor
protection alarm or as man-in-cold-room alarm
(contact NC).
P1 Password type of protection
(active when PA does not equal 0)
PA Password
(see P1 for the type of protection)
reL Software release

Switching on the OPTYMA

After correctly wiring the electronic control,
power up at 400 V AC; the display panel will

Compressor activation/deactivation conditions

The OPTYMA Control three-phase activates the
TM
compressor when the cold room temperature
exceeds setting + differential (r0); it deactivates the

Manual defrosting

To defrost, just press the dedicated key (see page 16)
to activate the elements relay. Defrosting will not
take place if the end-of-defrost temperature setting
(d2) is lower than the temperature detected by the
evaporator sensor. Defrosting ends when the end of-
defrost temperature (d2) or maximum defrost time
(d3) is reached.
20
Control three-phase
TM
RS8FE102, 080R9278
Operation and Maintenance Guide
Value
0 = activates when alarm is on
1 = deactivates when alarm is on
0 = alarm relay
1 = manual auxiliary relay
controlled via AUX key
2 = automatic auxiliary relay
managed by StA temp. setting
with 2°C differential
3 = relay disabled
4 = pump-down function (page 21)
5 = free voltage contact for
condensing unit (AUX relay and
compressor relay in parallel)
-45...+45°C
0 = compressor protection
1 = man-in-cold-room alarm
0 = only display set point
1 = display set point, AUX, light
access
2 = access to programming not
permitted
3 = access to second level
programming not permitted
0...999
0 = not active
indicates software version
immediately emit a beep and all the LEDs will come
on simultaneously for a few seconds.
compressor when the cold room temperature is
lower than the setting.
© Danfoss A/S (RA Marketing/MWA), Nov. 08
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