REXROTH RD 500 Series, Руководство по применению

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RD 500 RD51 Inverter Technical Data
5-33
DOK-RD500*RD51*******-IB04-EN-P
Mounting Extension Hoses for External Heat Exchanger
For devices with external heat exchangers, all of the parts required for the
hose extensions (hoses, connectors, couplings, clamps, coolant, etc.) are
supplied according to the customer’s specifications when ordering.
Customers must assemble the extension hoses themselves, as described
below:
1. Shorten the heat exchanger hose to the required length, if necessary.
2. Mount the connector with hose liner at one end of the heat exchanger
hose using a clamp.
3. Fill the hose with coolant using a funnel. The connector and coupling
have self-closing valves.
4. Connect the coupling with the hose liner at the other end of the heat
exchanger hose using a clamp.
Connect the inverter to the heat exchanger using the filled hoses. When
the hoses are connected or disconnected, low amounts of drip water
escape as a result of the self-closing valves of the connector and
couplings. The converter should be powered up for a few minutes so that
the pump circulates the coolant and vents the cooling system. Small air
bubbles in the coolant circulation, which can occur when connecting the
extension hoses, then collect in the compensation tank. After the air has
been vented, it should be checked whether the coolant level is at the
center of the compensation tank. If this is not the case, coolant must be
added to the compensation tank. To add coolant, remove the sheet metal
cover of the heat exchanger.
If the heat exchanger was connected in the way described above, it will
not be necessary to add any coolant to the compensation tank.
Servicing the Coolant Circulation System
The coolant circulation system is a closed cooling system that does not
require either servicing or inspection. If the “Device excess temperature”
fault occurs during operation, it should be checked whether the coolant
level is at the center of the compensation tank.
MZ520006EN00.FH9
compensation tank
for coolant
Fig.: 5-24 Compensation tank in external heat exchanger
Technical Data of Coolant Circulation System, Size Class G
The maximum system pressure is < 1 bar