nord NORDAC FLEX SK 200E Series User Manual page 55

The capacity of the SK BRI4 is limited (see also the following note field) and can be calculated as
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follows.
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(P=braking power (W), P = continuous braking power of resistor (W), P
n
braking process (s))
The permissible continuous braking power P
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Information
Switch the DIP switch (S1), DIP-No. 8 (please see chapter 4.3.2.2 "DIP switches (S1)")to "on" when using
internal braking resistors. This is important in order to activate a maximum output limit to protect the braking
resistor.
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Electrical data
Designation
(IP54)
SK BRI4-1-100-100
SK BRI4-1-200-100
SK BRI4-1-400-100
SK BRI4-2-100-200
SK BRI4-2-200-200
SK BRI4-3-047-300
SK BRI4-3-100-300
SK BRI4-3-023-600
SK BRI4-3-050-600
NOTE:
DIP switch (S1),
DIP-No. 8 = on
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BU 0200 en-US-4920
) �
2
but the following applies P < P
must not be exceeded on average in the long-term.
n
Peak load limitation - DIP switch (S1)
Mat. No. Resistor
100 Ω
275272005
200 Ω
275272008
400 Ω
275272012
100 Ω
275272105
200 Ω
275272108
47 Ω
275272201
100 Ω
275272205
23 Ω
3)
275272800
(2 x 47 Ω)
50 Ω
3)
275272801
(2 x 100 Ω)
2)
1) Maximum once within 10 s
2) In order to prevent inadmissible heating of the connection unit, the continuous power is
limited to 1/4 of the rated power of the braking resistor.
This also has a limiting effect on energy consumption.
3) Set consisting of 2 resistors to be connected in parallel
2 Mounting and installation
max
. peak braking power, t
max
Max. continuous
2)
output/limit consumption
(P )
n
100 W/25%
100 W/25%
100 W/25%
200 W/25%
200 W/25%
300 W/25%
300 W/25%
600 W/25%
(2 x 300 W) (2 x 3 kWs)
600 W/25%
(2 x 300 W) (2 x 3 kWs)
= duration of
brake
Power Connecting
1)
cable or
terminals
(P )
max
1.0 kWs
Silicone flexible
lead
1.0 kWs
2x AWG 20
1.0 kWs
approx. 60 mm
Silicone flexible
2.0 kWs
lead
2x AWG 18
2.0 kWs
approx. 60 mm
Silicone flexible
3.0 kWs
lead
2x AWG 16
3.0 kWs
approx. 170 mm
6.0 kWs
Silicone flexible
lead
2x 2x AWG 16
6.0 kWs
approx. 170 mm
55