Page 8 SC2000 Manual – 177/52301 Rev G 22
nd
October 2004
5.3.2 Current specifications:
Model Power Current
limit
(1 min)
Trac.+
Pump
Safe
operating
Area (SOA)
Continuous Current 1
Hour rating, with unit
mounted on an
aluminium baseplate
780x380x10mm, at
20°C ambient.
SC2x26 24V 2x650A 650A 30 - 60% 225A (1 side only)
SC2x45 48V 2x500A 500A 30 - 60% 170A (1 side only)
SC2x46 48V 2x650A 650A 30 - 60% 225A (1 side only)
SC2x85 80V 2x500A 500A 0 - 50% 170A (1 side only)
SC2x86 80V 1x650A 650A 0 - 45% 225A (1 side only)
SC2x96 96V 1x650A 650A 0 - 45% 225A (1 side only)
5.3.3 Switching Frequency: 15.7 kHz (Traction Drive and Braking and Pump).
5.3.4 Electrical Isolation: Enclosure to any live part = 1kV. Controller internal
insulation specified at > 10MΩ @500V DC. Dielectric
strength 1000V @ 50Hz for 1 Minute
5.3.5 Battery Polarity: An internal diode fitted in the keyswitch line will prevent
line contactor closure if the battery positive and negative
connections are reversed. When a line contactor is
used no damage to the controller will result.
5.3.6 Switch/Digital Inputs: Connector 1 (24 way) Pins:-
1, 2, 3, 4, 5, 6, 7, 8, 13, 14, 15, 16, 17, 18, 19 & 20
Operation: Active-low (The input becomes active when connected
to battery negative, otherwise inactive).
Voltage Range: Low (Closed) -1.0 to +1.8 V
High (Open) +4.5 to +150 V
(or open-circuit).
Input Impedance: Max. resistance to ground for a 'low' = 500 Ω.
Min. resistance to ground for a ‘high’ = 2.7 kΩ
Note : negative switch returns must be connected to controller B- terminal and not at
battery negative.
5.3.7 Active-high Inputs: The switch/digital inputs are available as a factory set,
hardware active-high option. Active-high inputs are
higher impedance and are more susceptible to moisture
problems.
Active-low inputs are recommended.
Operation: Active-high (The input becomes active when connected
to battery positive, otherwise inactive).
Voltage Range: Low (Open) -1.0 to 4.0 V
(or open circuit)
High (Closed) +8.75 to 150 V
Input Impedance: Max input impedance = 35 kΩ
5.3.8 Analogue Inputs: Connector A (24 way) pins:- 9, 10, 21 & 22
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