3
* Parameters ALFA 53-Grasso.
PARA-
METER
DESCRIPTION PARAMETER
RANGE
STANDARD
VALUE
20
21
Number of cylinders
Maximum cylinder temperature
0..12
100..185
C
8
155
90
Network number
110..125
110
95
96
97
98
99
Software version
Production year
Production week
Serial number (x1000)
Serial number (units)
0..255
00..99
1..52
0..255
0..999
-
-
-
-
-
Remark:
P90 must be set to the same RS485 network number as on the PCB (Set by the
address jumpers)
* Relay Functions.
The relay-1 heater activates, as the oil temperature is below the 40
O
C and stops as the
temperature is above 45
O
C.
The relay-2 fan activates, as
“compressor_on”
contact is closed and the oil temperature is
above 55
O
C and it stops as the temperature drops below the 50
O
C or as the
“compressor_
on” contact is opened.
Relay-3 alarm is normally active (C-NO = closed) and when a alarm occurs the relay alarm
deactivates (C-NC = closed). To reset an alarm push the
UP
key.
Oil-alarm [A0]:
Alarm as the oil temperature is above 80
O
C and can be reset as
the temperature drops below 60
O
C.
Cylinder temp.alarm: Alarm as an cylinder temperature is above the maximum cylinder
[A1...A12]
temperature setting (P21), with a delay of 180 seconds or
direct as an cylinder temperature is above maximum cylinder
temperature setting (P21) + 15K.
* Address.
VDH Products BV
Tel:
+31 (0)50 - 30 28 900
Produktieweg 1
Fax:
+31 (0)50 - 30 28 980
9301 ZS Roden
Email:
The Netherlands
Internet:
5HP on NH3; 143 deg. C
