Izip E3 Twn:exp User manual

03/10/14
System Operation Manual
IZIP E3 Twn:exp
This manual is meant to be read together with the IZIP owner’s manual, also included with
your bicycle. The IZIP owner’s manual contains important safety and use information about
your bicycle. Be sure to read both manuals before riding for the rst time, or performing
any assembly. If you did not receive an IZIP owner’s manual, the most recent version can
always be found online at www.CurrieTech.com.
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Contents
Section 1 Electrical System Components .................4
Section 2 General information ..........................8
Section 3 Basics ...................................10
Battery charging . . . . . . . . . . . . . . . . . . . . . .10
Charging procedure . . . . . . . . . . . . . . . . 10
Charge time . . . . . . . . . . . . . . . . . . . . 10
Checking the battery’s charge level . . . . . . . . 10
Using the battery . . . . . . . . . . . . . . . . . . . . .11
Installing the battery . . . . . . . . . . . . . . . . 11
Removing the battery. . . . . . . . . . . . . . . . 11
Turning the bike on and off . . . . . . . . . . . . . 11
To turn the bike on... . . . . . . . . . . . . . . . . 11
To turn the bike off... . . . . . . . . . . . . . . . . 11
Section 4 Riding and use.............................12
Getting ready to ride. . . . . . . . . . . . . . . . . . . .12
Riding the bike . . . . . . . . . . . . . . . . . . . . . .12
Using the motor. . . . . . . . . . . . . . . . . . . 12
Assist levels . . . . . . . . . . . . . . . . . . . . 12
Throttle . . . . . . . . . . . . . . . . . . . . . . . 12
Cruise control. . . . . . . . . . . . . . . . . . . . 13
Using the brakes . . . . . . . . . . . . . . . . . . 13
The display and control pad . . . . . . . . . . . . . . . .13
The display’s cyclecomputer functions . . . . . . . 13
The display’s electrical system functions . . . . . . 14
Assist level . . . . . . . . . . . . . . . . . . . . . 14
Battery level . . . . . . . . . . . . . . . . . . . . 14
Maintenance information . . . . . . . . . . . . . . 14
Control pad functions . . . . . . . . . . . . . . . . 14
Section 5 Troubleshooting ............................15
Error codes . . . . . . . . . . . . . . . . . . . . . . . .15
Charging issues . . . . . . . . . . . . . . . . . . . . . .15
Misc issues . . . . . . . . . . . . . . . . . . . . . . . .16
Lost key. . . . . . . . . . . . . . . . . . . . . . . 16
No power from battery . . . . . . . . . . . . . . . 16

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Notice!
Your bike ships without the battery fuse installed. This helps keep the
battery in top condition during shipping and storage. Before using your bike for the rst
time, you’ll need to install the fuse, as shown in the diagram above.
The fuse is in a small plastic bag, either hanging from the bike or in the parts box. It is a
standard 30-Amp automotive fuse.
Fuse
cover
30

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Electrical System Components
Battery and rack
2
Key
1
Lock cover
Battery compartment
cover
Rack

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3Battery
Battery
handle
Battery
charging port
Battery and rack

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Display
I K L
C D E F G
A
B
DISPLAY FUNCTIONS
A Ambient light sensor
B Main display area
C Speed
D Odometer
E Distance
F Range
G Maintenance indicator
H Distance unit
I Assist level indicator
J Cruise control indicator
KLow battery warning indicator
L Battery level indicator
H
J
Control pad
CONTROL PAD BUTTONS
A Assist level
B Light
C Power
D Info
E Cruise control
B
C
D
A
E

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Throttle
Battery charger
Wall plug
Power
cord
Power plug
Power socket
Charging cord
LED indicator
Charging
plug

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General information
USE RESTRICTIONS
Intended
Use1
Condition 2
(General purpose riding)
Minimum
rider age
16 years
Maximum
permissible
weight2
130 Kg (286 lbs)
1. This bicycle is intended to be used under the guidelines of the stated condition, found in the intended use
section of your IZIP owner’s manual. Be sure to read this section of the owner’s manual for more information.
2. Maximum permissible weight includes the weight of the rider (plus clothing, riding gear, etc), the weight
of the bike itself (including any added accessories), and any cargo being carried.

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TECHNICAL SPECIFICATIONS
Motor
Type Rear hub drive
Rated power 400W
Peak torque 33 Nm
Battery
Voltage 48V nominal
Capacity 10.4Ah
Energy 499Wh
Cycle life
(expected)
~700
Charger
Input voltage 110-240V AC (auto-sensing)
Frequency 50/60Hz
Input current 2.2A maximum
Charging
voltage
54.6V DC (48V nominal)
Charging
current
2.0A
Full charge
duration
4-6 hours
Ride performance
Top assisted
speed
32 km/h (20 mph)
Range
(expected)1
25-35 miles
Control type Throttle/pedal assist. Cadence sensor, speed sensor.
1. With normal pedaling; Contingent on terrain, rider weight, riding style, and other factors.

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Basics
IMPORTANT: The IZIP owner’s manual included with your bike contains most of the
important safety and usage information about this bike, which is not included in this system
operation manual. Be sure to read the owner’s manual before you begin riding or working
on your bike.
Battery charging
You should charge the battery fully before
riding for the rst time, following the instructions
below. Be sure to check the section of your
owner’s manual discussing “Battery care &
safety” for additional information.
Charging procedure
Connect the power cord to the battery
charger. Plug the charging plug into the
battery’s charging port, then plug the wall
plug into a wall outlet.
The charger should always be plugged
rst into the battery, then into the wall
outlet.
Charging will begin immediately. The
charger’s LED indicator will light up to show
its status.
LED STATUS
Red Charging
Green Finished charging
Red
(ashing)
Charging error; see
“Charging issues” below
If the battery is attached to the bicycle,
and the bicycle is turned on, the battery level
indicator on the bike’s display will show the
current charge level. See “Turning the bike
on and off” on page 11.
The battery does not have a “memory”. This
means that it can be charged at any time, or
partially charged, without causing damage
or decreasing performance.
Charge time
The amount of time needed to charge the
battery varies based on the battery’s charge
level. A completely empty battery will take
between 4 and 6 hours to charge. A battery
at 50% may only need 2-3 hours to come
to a full charge.
Checking the battery’s charge
level
Before riding, you should check the
battery’s charge level. If the battery is not
fully charged, riding range will be reduced.
To check the battery’s charge level, rst
install the battery in the bike, then turn the
bike on (see “Using the battery” on page
11). The battery level indicator on the
display will show the battery’s charge level.
Each bar represents about 20% capacity:
BARS BATTERY CHARGE
(low battery
warning) <5%
1≤20%
2 ~20– 40%
3 ~40 – 60%
4 ~60 – 80%
5 ~80 – 100%

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Using the battery
Installing the battery
First, ip open the lock cover, unlock the battery compartment with the key, and open
the battery compartment cover.
Then, orient the battery as shown in the diagram and slide the battery into the compartment,
pushing it rmly down until it stops.
Close the battery compartment cover and lock it.
You must lock the battery compartment cover closed before riding the bike. If it is
unlocked, the battery could disengage while you ride, causing loss of power.
Removing the battery
To remove the battery, open the battery compartment cover, then pull the battery straight
out of the rack by the handle.
Turning the bike on and off
To turn the bike on...
Press the control pad power button ( ).
To turn the bike off...
Press the control pad power button ( )two times. After the rst press, the bike will enter
assistance level 0, showing ‘0’ on the display’s assist level indicator; see “Assist levels” on
page 12 below. After the second press, the bike will turn off.

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Riding and use
Be sure to read the “Electric Bikes” section of your IZIP owner’s manual, and specically
pay attention to the sections on “Riding an electric bike” and “Riding a high-speed electric
bicycle” before you ride for the rst time.
Getting ready to ride
First turn the bike on, following the
instructions in “Turning the bike on and off”
on page 11 of this manual.
Mount the bicycle. Be sure you don’t
accidentally twist the throttle, or turn the
pedals; this could cause the bike to accelerate
unexpectedly.
Riding the bike
Using the motor
The purpose of the E3 Twn:exp’s motor
is to gently augment the effort you put into
riding the bike. When you pedal fast, the
motor assists you more; when you pedal
slowly, the motor assists you less.
So, to ride the bike, all you really need
to do is pedal. The majority of the work of
controlling the motor is done automatically.
There are, however, three other controls
that affect how the motor runs: assist levels,
the throttle, and cruise control.
Assist levels
Assist levels control how much power the
motor will add to your pedaling. The assist
level is shown on the display, and can be
changed at any time using the button on
the control pad (see “Control pad functions”
on page 14).
Levels 1–4 are increasing levels of
automatic motor assist. Level 1 gives the
least assistance; level 4 gives the most.
“T”, or “throttle-only” mode disables the
automatic motor assist, but leaves the throttle
active. Simply twist the throttle to control
the motor.
Level 0 disables motor assist completely.
Other functions such as the cyclecomputer
can still be used.
Throttle
The throttle can be used under certain
conditions to override the automatic assist:
In “T”/throttle-only mode, automatic motor
assist is disabled, and the throttle is always
active.
In assist level 1–4, when moving under
10 km/h (6 mph), the throttle is always
active, even without pedaling. This helps
you get moving from a stop, and helps when
navigating difcult terrain at low speed.
In assist level 1–4, when moving over 10
km/h (6 mph), the throttle is active as long
as you are pedaling.
The throttle is never affected by assist level.
Using the throttle, you always have control
of up to 100% of the motor’s power.

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Cruise control
While in “T”/throttle-only mode, cruise
control can be turned on with the
button:
First, pedal or use the throttle to reach
your desired cruising speed. Hold the throttle
in a position that maintains this speed, and
press the button. You can then release
the throttle, and the bike will hold its current
speed, plus or minus about 3 km/h (2 mph).
Cruise control can be disabled at any time
by pulling either brake lever, twisting the
throttle, or by pressing the button
again.
Cruise control will not function over 32 km/h
(20 mph). If you turn on cruise control while
traveling faster than 32 km/h, the bike will
decelerate to 32 km/h and hold that speed.
Using the brakes
The E3 Twn:exp’s brakes are integrated
with the electrical system. When you pull the
brakes, they not only slow the wheel like a
normal bicycle brake, they also cut power
from the motor.
See the “Brakes” section of your IZIP
owner’s manual for more information.
The display and control
pad
The display serves both as a cyclecomputer,
displaying speed and distance information,
and as an interface to the bike’s electrical
system. The functions of the display are
controlled by the control pad.
The display’s cyclecomputer
functions
The display has four cyclecomputer
functions. Switch between these functions
using the button. The function’s information
is displayed in the main display area.
CYCLECOMPUTER FUNCTIONS
SPD Speed The bicycle’s
current speed
ODO Odometer The bicycle’s total
mileage
DST Trip
distance
The distance
covered during the
current trip
Range
Remaining
range
The estimated
remaining range
before the battery
is empty
Distance and range are displayed in the
units shown to the right of the main display
area.
To reset the trip distance counter, hold
and on the control pad together for
10 seconds.
To reset the odometer, hold and
on the control pad together for 60 seconds.

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The display’s electrical system functions
The display shows information about the bike’s electric assist, and gives the rider access
to several important functions:
Assist level
The current assist level is shown on the display (assist level indicator).
Battery level
The battery level indicator shows the current charge level of the battery. Each bar
represents about 20% capacity.
The low battery warning indicator lights up when the battery has less than 5% remaining
charge.
Maintenance information
The maintenance indicator lights up when there is a system error. An error code shown
on the display helps to diagnose the problem. See “Error codes” below.
Control pad functions
The control pad is used to control the various functions of the bike and display.
The control pad’s ve buttons perform the following functions:
CONTROL PAD FUNCTIONS
Cycle assist level 1–4, and “T”/throttle-only mode.
Turn on display backlight and the headlight and taillight if installed.
When bike is off, and battery is turned on:
Turn bike on
When bike is on, and in assist level 1–4:
Set assist level 0
When bike is on, and in assist level 0:
Turn bike off
Change cyclecomputer display
Activate cruise control
The display backlight and any attached headlight/taillight is also controlled by the ambient
light sensor; they will automatically turn on in low light.

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Troubleshooting
Error codes
SYSTEM ERROR CODES
In the event of a system error, these codes will appear on the display.
1Motor internal error
4Cadence sensor error
5Motor speed sensor malfunction
6Brake lever cut-off sensor malfunction
7Throttle malfunction
Most of the time, these errors can be resolved easily by checking the wiring connections
for the affected component. Call Currie Tech customer service, or see your dealer for
more information.
Charging issues
ISSUE: Charger LED indicator ashes red
LED ashes red after charging for a while:
Battery is not responding to charging.
• The battery voltage is less than 25V, and does not rise above 25V after 30 minutes
of charging.
• The battery voltage is between 25V and 30V, and does not rise above 30V after one
hour of charging.
Solution
Reset charging by unplugging the charger from the wall outlet, then
plugging it back in. If charging fails after a second attempt, the battery
or charger may need to be replaced. Bring them to your dealer for
inspection.
Battery has not nished charging after 10 hours.
Solution The battery may be damaged and should be inspected by your dealer.
LED ashes red immediately after being plugged in:
The polarity between the charger and battery does not match.
Solution The battery or charger may be damaged. Stop using the battery and
charger immediately, and bring them to your dealer for inspection.

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The output of the charger is short-circuited.
Solution
Stop using the battery and charger immediately. Check for obvious
external shorts on the charging plug and battery charging port. If no
obvious short exists, the battery or charger may be damaged. Bring
them to your dealer for inspection.
Other issues causing a ashing red LED:
The temperature of the battery is too high to charge.
Solution Put the battery and charger in a cool place, then try charging again
after a few minutes.
ISSUE: Charger LED indicator stays green when plugged into the battery.
There is no connection between the charger and the battery.
Solution

Check for damage: battery charging port, charging plug, charging
cord, and power cord.
There may be an internal problem with the battery or charger. Bring
them to your dealer for inspection.
The battery’s voltage is too low to be charged.
Solution
Check the battery’s charge level as described in this document. If the
battery will not turn on, the battery may be damaged and should be
inspected by your dealer.
Misc issues
Lost key
If you have lost your keys, note your bike’s serial number (located underneath the frame’s
bottom bracket) then call Currie Tech customer service at [phone].
No power from battery
The battery has a user-replaceable fuse located at its base.
The fuse is not installed at the factory; you must install it before
using the bike for the rst time.
If the fuse is present but the bike still
does not power up, inspect the fuse; if
it is blown out, it can be replaced with
a standard 30-amp automotive fuse.
Good Blown
Fuse
cover
FE99