Sprint Electric 200XLV, Product Manual

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4 Introduction
2 A
1 A
0 12 24 36 48
AV (±) output
0
56 Vdc supply voltage
Continuous average max. monitoring output current (±
Amps) at 20°C ambient
2 A
1 A
0 12 24 36 48
AV (±) output
0
32 Vdc supply voltage
2 A
1 A
0 12 24 36 48
AV (±) output
0
20 Vdc supply voltage
2CW
DIN
RAIL
2CW
DIN
RAIL
2CW
DIN
RAIL
Figure 3 Performance graphs
• The upper traces in the graphs (Figure 3) show the performance with a 2°C/W
heatsink (a unit fixed to a panel of approximately 200 x 200 mm).
• The lower traces show the performance with the unit mounted on a DIN rail.
Continuous duty produces high dissipation when operating at low speeds with high current/
torque and high supply voltages. The worst dissipation performance happens during
continuous or repetitive braking at high speeds, but this occurs infrequently, and most
applications are satisfied with the unit mounted conventionally.
The typical thermal loads on the unit are listed below:
Function Dissipation
Continuous braking with motor being overhauled by external force
and the 200XLV trying to hold it back
Extremely high
Continuous repetitive braking to stop with high inertia loads Very high
Continuous motoring at low speeds and high torques Very high
Continuous motoring at medium speeds and high torques High
Continuous motoring at high speeds and high torques Quite high
Continuous motoring with light loads and occasional stopping Medium
Occasional motoring and braking with periods of resting Low
When incorporating the unit into a machine or system for the first time, run a test at
the 200XLV's maximum operating ambient temperature to confirm that the cooling
arrangements are adequate.
1.1.3 Power output and heatsink
WARNING!
PERSONAL INJURY HAZARD
The unit casing acts as a heatsink and may become too hot
to touch.
The 200XLV has an automatic thermal limiting device that prevents excess dissipation from
damaging the unit. When motoring, the output capability depends on the dissipation (WD) in
the drive, where WD = Amps x (V
DD
– armature volts). The maximum allowed dissipation from
the 200XLV is 40 W at a base plate temperature of 75°C.