Kelly KDZ Series/PM Motor Controller User
’s Manual
V 3.5
3
Chapter 2 Main Features and Specifications
2.1 General functions
(1) Extended fault detection and protection. The LED flashing pattern indicates the fault sources.
(2) Monitoring battery voltage. It will stop driving if the battery voltage is too high and it will
progressively cut back motor drive power as battery voltage drops until it cuts out altogether at
the preset
“Low Battery Voltage” setting.
(3) Built-in current loop and over current protection.
(4) Configurable motor temperature protection range.
(5) Current cutback at low temperature and high temperature to protect battery and controller. The
current begins to ramp down at 90
ﹾ
Ｃ(controller case temperature)
, shutting down at 100
ﹾ
Ｃ
.
(6) The controller keeps monitoring battery recharging voltage during regenerative braking,
progressively cutting back current as battery voltage rises then cutting off regen altogether
when voltage goes too high.
(7) Maximum reverse speed is configurable to half of the maximum forward speed.
(8) Configurable and programmable with a host computer though RS232 or USB. Provide free
GUI which can run on Windows XP/2000, Windows 7 and Vista(recommend using Kelly
Standard USB To RS232 Converter).
(9) Provision of a +5 volt output to supply various kinds of sensors, including Hall effect type.
(10) Multifunctional and configurable 3 switch inputs: brake switch, reversing switch, throttle or
forward switch. Active low.
(11) 3 analog 0-5V inputs that default to throttle input, brake input and motor temperature input.
(12) Pulsed reverse alarm output.
(13) Maximum reverse power is configurable to half power.
(14) Configurable motor over-temperature detection and protection with the recommended
thermistor KTY84-130/150 or KTY83-122.
(15) Optional 12V output power which can only be applied for Switch signals or LED. Any heavy
load is inhibited.
Caution!
Regeneration has braking effect but does not replace the function of a mechanical brake.
A mechanical brake is required to stop your vehicle. Regen IS NOT a safety feature! Controller
may stop regen, without warning, to protect itself or the battery(it won
’t protect you!).
