MSD Single-Axis System Operation Manual AC-AC Servo Drive
ID no.: CA65642-001 06/2018
moog
81
A.7 Hydrological data for the liquid cooling
CAUTION! Damage to the device due to condensation on the cooling plate
• Carelessness can cause condensation on the cooling plate and as a
consequence irreparable damage to the device!
The temperature of the cooling plate is not allowed to be more than +10 °C (+50 °F) below the
ambient temperature.
NOTE:
Adequate heating of the water chiller is to be provided by the customer.
The coolant is to be approved by Moog.
Requirements Limits
Coolant quality
Recommended: tap water + corrosion inhibitor (e.g.ethylene glycol)
Not allowed are: chloride ions (Cl- >100ppm), calcium carbonate (CaCO3 >160ppm)
Soiling
The coolant must be as pure as possible to ensure the channels are not clogged. With
a suspended matter concentration of more than 15mg/dm³, continuous purication is
recommended.
Coolant temperature
The coolant temperature can be between +5 °C and +40 °C (+41 °F and +104 °F).
However, the coolant temperature should not be more than 10°K below the ambient
temperature to prevent condensation on the heat sink.
Cooler material Aluminium
Table A.22 Requirements, liquid cooling
Size Size 3 Size 4 Size 5 Size 6A Size 7
Coolant pressure
(rated value/ maximum value)
1bar/ 2bar
Coolant ow rate
(rated value approx./
maximum value approx.)
3lpermin/
4lpermin
8lpermin/
11lpermin
11lpermin/
13lpermin
12lpermin/
14lpermin
Table A.23 Hydrological data for the liquid cooling
A.8 Monitoring of the heat sink
temperature
If the maximum permissible cooling temperature is exceeded, the servo drives shut
down with an overtemperature error.
Size Size 3 Size 4 Size 5 Size 6A Size 7
Device
G395-016
G395-020
G395-024
G395-032
G395-045
G395-060
G395-072
G395-090
G395-110
G395-143
G395-170
G395-250
G395-325
G395-450
Shutdown of the device at a
cooling temperature of
+65 °C (+149 °F) +90 °C (+194 °F)
Should, for devices with liquid cooling, the coolant ow rate collapse or not become
established, the power stage may overheat. For this reason the servo drive is equipped
with dynamic monitoring of the heat sink temperature that shuts down the servo drive if
there is an excessively high temperature gradient.
A.9 UL certication
The description of all measures to maintain UL certication is to be found in the
document "UL-Certication" (ID No: CC36842-001).