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TECHNICAL INFORMATION
59
87-900-852-01 (B)
The following parameters can be changed:
Bytes
Meaning
1
Speed threshold
2-5
Run up time in seconds
(long coded in 4 bytes)
6
Deat time
(0 = NO 1 = YES)
7
Controller OFF when R2 OFF
(0 = NO I=YES)
8
Soft Start Mode
(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
Meaning
1
MSB LSB
- - X X X X X X
0 = STOP
1 = WAITING INTERLOCK
2 = STARTING
3 = NORMAL OPERATION
4, 5 = HIGH LOAD
6 = FAILURE
7 = APPROACHING LOW SPEED
R2 status 0 = OFF 1 = ON
R1 status 0 = OFF 1 = ON
2
CRC
When the
Request
is "J" (Numerical readings), the
Answer
will contain a string of 5 characters with the
following parameters:
Bytes
Meaning
1
Current (0-255 scaled)
2
Voltage (0-255 scaled)
3
Rotational speed KRPM
(0-255 scaled)
4
Pump temperature °C
(0-254 temperature reading, 255 = fail)
5
CRC
When the
Request
is "K" (Counters readings), the
Answer
will contain a string of 11 characters with the
following parameters:
Bytes
Meaning
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.
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