Hy Supply Unit - MVA Mess

MVA
Mess- und
VerfahrensTechnik
GmbH
Am KirchenHölzl 7
D-82166 Gräfelfing/München
Fon +49-89-8583 69-0
Fax +49-89-8583 69-70
11.2 INPUTS TO MOTOR CONTROL AND MONITORING:
11.21 INPUTS FROM THE OWN HYDRAULIC UNIT:
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PAL Pressure to low – Alarm WARNING
If another HY-units not o.k. then ALARM, locking
actuators
PLL Pressure to low motor ON, WARNING
If another HY-units not o.k. then ALARM, locking
actuators
PL Pressure low motor ON
PH Pressure high motor OFF
PHH Pressure to high motor OFF, WARNING
OPTIONS: NLL LEVEL OIL to low motor OFF, WARNING
If another HY-units not o. k. then ALARM, locking
actuators
THH Temperature to high motor OFF, WARNING
If another HY-units not o. k. then ALARM, locking
actuators
11.22 MANUAL INPUTS:
ON not locking motor ON, pressure limits are not in
order
AUTO locking logic and control systems are running
11.23 INTERNAL DECISION:
MOTOR RUNS AGAIN AND AGAIN time more than 10 to 20 minutes
WARNING
11.24 OUTPUTS:
M1, M2 motor ON/OFF pump motors on and off with rellay
WA WARNING fault – control systens are running
AL ALARM manual and automatic systems
default, only safety direction are possible
OPTION: M.A.D. all actuator systems are locked
12. CONNECTING HYDRAULIC- AND PUMP-UNITS: If there is more than one pump unit installed for
redundant reasons, so there are two units connected with one common tank. For service with two pumps
are systems with one or two separated tanks suited, the difference is the internal circuit system.
DATA SHEET FOR HYDRAULIC UNIT
1 Project: Proj. ABB Meliti Achlada HDU - MVA No. 0805.99 and NDU for example
2 Item no.: I II III
3 kks code: MAN10 LCE10 LBH20
4 HYDRAULIC ACTUATOR: AH200/80-80FO AH100/50-45 AH100/50-35