Hydrological Data For The Liquid Cooling; Monitoring Of The Heat Sink Temperature; Ul Certification - Moog MSD Operation Manual

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
Recommended: tap water + corrosion inhibitor (e.g. ethylene glycol)
Coolant quality
Not allowed are: chloride ions (Cl- >100 ppm), calcium carbonate (CaCO3 >160 ppm)
The coolant must be as pure as possible to ensure the channels are not clogged. With
Soiling a suspended matter concentration of more than 15 mg/dm³, continuous purification is
recommended.
The coolant temperature can be between +5 °C and +40 °C (+41 °F and +104 °F).
Coolant temperature 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
Coolant pressure
(rated value / maximum value)
Coolant flow rate
(rated value approx. / 3 l per min /
maximum value approx.) 4 l per min
Table A.23 Hydrological data for the liquid cooling
moog
ID no.: CA65642-001 06/2018
Size 4 Size 5 Size 6A Size 7
1 bar / 2 bar
8 l per min / 11 l per min / 12 l per min /
11 l per min 13 l per min 14 l per min
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
Device
Shutdown of the device at a
cooling temperature of
Should, for devices with liquid cooling, the coolant flow 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 certification
The description of all measures to maintain UL certification is to be found in the
document "UL-Certification" (ID No: CC36842-001).
MSD Single-Axis System Operation Manual AC-AC Servo Drive
Size 5 Size 6A Size 7
+65 °C (+149 °F) +90 °C (+194 °F)
81