Curtis 1226 User Manual

2 — INSTALLATION AND WIRING
Curtis Model 1226 – September 2019
Return to TOC
pg. 18
Emergency Stop Switch
To ensure operator safety, it is recommended that the vehicle include an emergency Stop switch.
e switch with an auxiliary contact must be connected to the battery and the keyswitch as shown
in Figure 6.
Interlock Input
To ensure operator safety, the 1226 controller does not allow vehicles to start from rest on level
ground until the operator species the driving direction and applies throttle.
e interlock input indicates whether the operator intends to power up and drive the system, as
described below:
• When the interlock goes on, it signals that the operator intends to drive the vehicle.
• When the interlock is o, the vehicle is considered to be at rest and the controller does
not allow the vehicle to start driving.
Note: For the 1226 controller, the interlock input is typically connected to the tiller handle. e
interlock is on when the tiller handle is pulled down.
Before turning the interlock input on, the operator must turn o the direction switch(es) and reduce
the throttle to under 25% of its maximum voltage, otherwise an HPD/Sequencing fault will occur;
see page 80.
You can use either the keyswitch or an interlock switch for the interlock. Use the Interlock Type
parameter to indicate which is used; see page 36.
If the vehicle uses an interlock switch, connect it to pin J3-3. e input is typically assigned to Switch 7.
Push Switch
e push feature allows the electromagnetic brake to be released electrically when the push switch
is active, thus allowing the vehicle to be pushed. For example, the push feature allows an attendant
to manually push a mobility aid scooter.
e push feature prevents driving until the push switch is turned o. is ensures that the operator
can drive the vehicle only when the electromagnetic brake is in a state where it can be engaged.
e push switch is typically connected to pin J3-9. You must also specify that the Push Enable
parameter is on; see page 29.
To use the push feature, the following conditions must apply:
• e batteries must be wired to the controller.
• e keyswitch must be enabled.
• e vehicle must be stopped.
• e electromagnetic brake must be engaged.
If the vehicle is pushed too fast, indicating a runaway or other abnormal condition, the controller
will automatically turn on and limit the vehicle speed. e controller will limit the speed even if the
vehicle was not powered on or connected to the battery.
Note: e Push Max Speed parameter denes the maximum speed at which the vehicle can be pushed
before the controller limits the vehicle’s speed. See page 29.

Curtis 1226 Specifications

General

Brand	Curtis
Model	1226
Category	Controller
Language	English