Sevcon Gen4 User Manual

Doc. # 177/52701
Rev3
4-2
Electrical
Input voltage
24V only
(Size 2 24V)
24/36V
controllers
36/48V
controllers
72/80V
controllers
96/110V
controller
Conventional
working
voltage range
(Note 1)
16.8V to 28.8V
16.8V to 43.2V
25.2V to 57.6V
50.4V to 96V
67V to 132V
Working
voltage limits
(Note 2)
12.7V to 34.8V
12.7V to 52.2V
19.3 V to 69.6 V
39.1 V to 116 V
48V to 150V
Non-
operational
overvoltage
limits:
39.6V
59.4V
79.2 V
132 V
150V
Battery
voltage droop:
Vnom to 0.5 x Vnom for 100 ms
Input
protection:
Input protected against reverse connection of battery
Note 1: Conventionally the controller may be set to operate without cutback in the range 70% to
120% of the nominal battery voltage, although cutback parameters may be used to set cutbacks
higher or lower than this range. Cutbacks are set by the user for various reasons, including:
 Battery protection against high current in deep discharge condition
 Providing smoothly reducing performance at extremes of working voltage range, rather
than a sudden loss of function
Note 2: Working voltage range outside which the controller will be non-operational.
 Upper working voltage limits for 72V/80V Gen4 is being increased to 120V and will be
rolled out when possible in future Gen4 variants for both PMAC and Induction motor
firmware.
Output protection
Output current:
Reduced automatically from peak to continuous rating depending on the
time a peak load is applied to the controller (see Figure 10 on page4-4).
Reduced automatically if operated outside normal temperature range.
Short-circuit:
Protected against any motor phase to B- or B+ at power-up.
Protected against any motor phase to another motor phase at any time
during operation.
At switch-on Gen4 detects valid output loads are present before applying
drive current.

Sevcon Gen4 Specifications

General

Brand	Sevcon
Model	Gen4
Category	Controller
Language	English