Siemens 1FT6 03 Série Mode D'emploi page 87

Materials used in the cooling circuits
The anti–corrosion additives used should be harmonized with the cooling system
manufacturer – i.e. the materials of the motor cooler and the materials of the fit-
tings and cooling medium hoses listed in Table 1-15.
Table 1-15
Motor type
1FT606V
1FT608V
1FT610V
1FT613V
1FT616V
Cooling medium and anti–corrosion protection
Notice
It is not permissible that ice forms in the cooling circuit, neither in operation nor
during storage.
The checking and change intervals for the cooling medium should be harmonized
with the anti–corrosion agent company and the cooling system manufacturer.
We recommend that an anti–corrosion agent is added to water as cooling–medium
(e.g. Antifrogen N from the Hoechst Company or Tyfocor from Tyforop Chemie
GmbH, refer to Table 1-16).
Observe the specifications of the anti–corrosion agent manufacturer regarding the
ratios of water to anti–corrosion agent
For Tyfocor, the ratio of 75 % water and 25 % anti–corrosion agent should not be
exceeded.
When using another cooling medium (e.g. oil, cooling–lubricating medium) de–
rating may be required in order that the thermal motor limit is not exceeded. The
de–rating can be determined using the following data:
Specific gravity:
Specific thermal capacitance:
Intake temperature:
Flow quantity:
The inquiry must be made in the manufacturer's plant (Hotline).
The motor power still does not have to be reduced for oil – water mixtures with less
than 10 %.
 Siemens AG 2004 All rights reserved
Synchronous Servomotors, 1FT6 (PFT6) – 02.04 Edition
Materials used in the motor cooling circuit
Bearing end Enclosure
shield
Aluminum Aluminum
Gray cast iron Aluminum
ρ [kg/m
c [J/(kg K)]
p
t [°C]
v
v [l/min]
Sealing agent
Terostat
Terostat
3
]
Motor Description
1.7 Cooling
Connection
plate
Stainless steel
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1FT6/1-35