45
display. The alarm relay opens its contact. The alarm remains active while
at least one stage is set to the stage type
“
Flty
”.
In order to reset the alarm, set the stage type of the affected stage to not
equal to
“
Flty
”. If the function “Manual reset” (SETUP/501 = NO) is
deactivated, the alarm messages (display and alarm relay) are automatically
reset. The alarm relay is only reset, if no other alarm is active.
“
NO
”: Alarm for faulty stages is deactivated.
516
Stage alarm: Stage power loss
Yes/No
“
YES
”: Alarm for stage power loss is activated.
If the current stage size falls below 75% of the initial size, the stage alarm
stage power loss is signalled.
The message
“
SPl
ALARM
“ is shown on the display alternatingly with the
stage number. Only the lowest number of the affected stages is displayed.
The alarm relay opens its contact. The stage type of the affected stages is
set to
“FOFF” and blocked. The stage is locked for the control. The stage is
locked for as long as the current stage size is smaller than 75% of the initial
size. The stage type cannot be changed.
In order to reset the alarm and to activate the affected stages, these stages
must be changed first. After this, manually enter the stage sizes of the
replaced stages in the SETUP/402, so that the current stage size is correct
again and is equal to the initial size
100%. The stage type of these stages
can be set again now. If the function
“Manual reset” (SETUP/501 = NO) is
deactivated, the alarm messages (display and alarm relay) are automatically
reset. The alarm relay is only reset, if no other alarm is active.
“
NO
”: Stage alarm stage power loss is deactivated.
517
The display is flashing when an alarm is signalled.
Yes/No
“
NO
”: Display is
NOT
flashing when an alarm is signalled. This is the default
setting.
“
YES
”: Display is flashing when an alarm is signalled.
NOTE:
This only works when the backlighting is switched off. If a key is
pressed, the backlighting is switched on again. The display is not flashing
anymore. If no other key is pressed, the backlighting is switched off after 60
s. The display is flashing again.
518
Switching between functions of digital input
CP2/I Lo/di
“
CP2
”: The digital input can be used in order to switch to the target COSϕ2
(low rate). This is the default setting.
“
I Lo
”: Digital input can be used in order to suppress the I-Low alarm.
“
di
”: Digital input can be activated by an external thermostat.
519
Info: I-LOW-alarm suppression
For information purposes only. No settings possible.
“
YES
” = Digital input is active; I-LOW-alarm is suppressed.
“
NO
” = Digital input is not active; I-LOW-alarm is NOT suppressed.
NOTE:
The I-LOW-alarm can only be suppressed via the digital input, if
function SETUP/518 is
set to “I Lo” and I-LOW-alarm (SETUP/521 = No) or
digital input function (SETUP/518) is configured as “CP2” or “di”.
NOTE:
If the digital input alarm is triggered after running out of the delay
time of 10 s, all active stages (
“AUTO” & “FON”) are switched off one by one
referring to the switch-off interval set under SETUP/523 and are locked for
30 min. The last active stage is switched off first, when the switch-off interval
has run out after the signalling of the alarm. Then, the other stages are
switched off one by one referring to the switch-off interval. As all active
