Keba ServoOne Series, Operation Manual

Page: 80 / 92

Operation Manual ServoOne Supply Unit
80
ID no.: 1101.21B.6-00 Date: 04/2020
NOTe:
Do not use material combinations with contact corrosion in the cooling circuit,
such as aluminium and copper. This can lead to leaks and blockages of the
cooling lines.
Size BG5 BG6a BG7
Device
SO84.040
SO84.076 SO84.115
SO84.170 SO84.375
SO84.540
Coolant pressure
(rated value /
maximum value)
1 bar /
2 bar
Coolant flow rate
1)
(rated value approx. /
maximum value approx.)
8 l per min /
11 l per min
11 l per min /
13 l per min
12 l per min /
14 l per min
1) For devices without internal braking resistor
Table A.13 Hydrological data for the liquid cooling
NOTe:
The requirements on liquid-cooled devices as per DIN EN 61800-5-1 are to be
ensured by the user. On this issue pay attention in particular to the require-
ments in chapter 3.5 / 4.2.2 / 4.2.3 / 4.5
A.4 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 below the ambi-
ent temperature.
NOTe:
Adequate heating of the water chiller is to be provided by the customer.
Requirements Limits
Coolant quality
Recommended: tap water + corrosion inhibitor
Corrosion protection through: 10-20 % vol Ethylene glycol
Limit concentrations:
Calcium < 50 ppm
Magnesium < 50 ppm
Total alkaline earth ions < 100 ppm
Chlorides < 25 ppm
Sulphates < 25 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 purification
is recommended.
Coolant temperature
The coolant temperature can be between 5 °C and 40 °C. However, the coolant
temperature must not be more than 10 °K below the ambient temperature to prevent
condensation on the heat sink.
Cooler and cooler connec-
tion material
Aluminium
Table A.12 Requirements, liquid cooling
Appendix