The following parameters can be changed:
Bytes
1
Speed threshold
2-5
Run up time in seconds
(long coded in 4 bytes)
6
Deat time
(0 = NO 1 = YES)
7
Soft Start mode
(0 = NO I=YES)
8
Water cooling
(0 = NO I=YES)
9
CRC
When the Request is "I" (Status readings), the Answer
will contain a string of 2 characters with the following
parameters:
Bytes
0000 = STOP
0001 = WAITING INTERLOCK
LSB X
0010 = STARTING
X
0011 = NORMAL OPERATION
X
0100 = HIGH LOAD
0101 = " "
X
0110 = FAILURE
0111 = APPROACHING LOW SPEED
1
X
R2 status (0 = OFF 1 = ON)
X
R1 status (0 = OFF 1 = ON)
X
...
MSB X
...
2
CRC
When the Request is "J" (Numerical readings), the
Answer will contain a string of 5 characters with the
following parameters:
Bytes
1
Current (0-255 scaled)
2
Voltage (0-255 scaled)
3
Rotational speed KRPM
4
Pump temperature °C
(0-70 temperature reading, 255 = fail)
5
CRC
Meaning
Meaning
" "
Meaning
When the Request is "K" (Counters readings), the
Answer will contain a string of 11 characters with the
following parameters:
Bytes
1-4
Cycle time
5-8
Pump life
9-10
Cycle number
11
CRC
On request a sample program in QBasic language is
available by Varian.
58
TECHNICAL INFORMATION
Meaning
87-900-908-01 (C)