Burkert Type 8650 - Manual (Page 90)

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2.5.2. Access rights maintenance staff / specialist
Some of the parameters described below can only be modified when access is made in the PDM as a
SPECIALIST.
Further information on read and write rights can be found in the online Help for the Siemens PDM
program.
2.5.3. Functions of the parameters
• Enable.switching.cycle.counter.diagnosis.(read./.write).
Defines whether a diagnosis message is to be generated when the warning limit for a pilot valve switching
cycle counter is exceeded.
• Switching.cycle.counter.warning.limit(read./.write).
Defines the value of the pilot valve switching cycle counter at which a diagnosis message is to be generated as
a warning.
• Number.of.simultaneously.switchable.pilot.valves.–.only.relevant.for.the.8-channel.module.–.(read). Indi-
cates how many pilot valves can be simultaneously activated (also see boost time) (depending on the type and
amount of pilot valves, the total amount of current at actuation might be higher than the maximum the electronic
module can provide).
With the 8-channel module, valves 0 to 3 and/or 4 to 7 each make up a group.
If more than 4 valves are activated at once (including the previously activated valve), the following
might occur:
• Situation 1: No valves are activated in group 0 to 3. Then, the co-activated valves of group 4 to 7 are
immediately activated.
• Situation 2: Additional valves of group 0 to 3 are activated. Then the co-activated valves of group 4
to 7 are only activated after the boost time has elapsed.
• Boost.time.for.the.pilot.valves.(read./.write).
When switching on, the pilot valves receive a higher current. At the end of the boost time, the current is
reduced in order to minimize the power loss and to optimize the current balance in the electronic module.
Modul.e Value.„Boost.time“
00171941 (4 channels 11mm) 500
00171942 (8 channels 11mm) 300
00171943 (4 channels 16.5mm) 800
00171944 (8 channels 16.5mm) 300
• Date.of.the.last.switching.cycle.counter.reset.(read.only).
Indicates the last reset of the actuator switching cycle counter.
• Enable.switching.cycle.counter.diagnosis.(read./.write) .
Defines whether a diagnosis message is to be generated when the warning limit for the switching cycle counter
is exceeded.
Type 8650
english
Commissioning