Moog MSD - Hydrological Data for the Liquid Cooling; Monitoring of the Heat Sink Temperature; UL Certification

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- >100ppm), calcium carbonate (CaCO3 >160ppm)
Soiling
The coolant must be as pure as possible to ensure the channels are not clogged. With
a suspended matter concentration of more than 15mg/dm³, continuous purication 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) 1bar/ 2bar
Coolant ow rate
(rated value approx./
maximum value approx.)
3lpermin/
4lpermin
8lpermin/
11lpermin
11lpermin/
13lpermin
12lpermin/
14lpermin
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 certication
The description of all measures to maintain UL certication is to be found in the
document "UL-Certication" (ID No: CC36842-001).