Brake Faults; Seat Lift Brake Faults; Fault Beep; Other Parameters - Curtis MultiMode 1228 Manual

3 — PROGRAMMABLE PARAMETERS:

Other Parameters

28
Other Parameters
BRAKE FLTS
The brake faults parameter enables ("On") or disables ("Off ") all the electro-
magnetic brake driver and wiring fault detection. All DME scooter applica-
tions must have this parameter programmed On to satisfy the industry's safety
requirements.
In non-DME applications such as sweeper/scrubbers, where there is no
electromagnetic brake, the brake faults parameter can be programmed Off, thus
eliminating the need for the 200Ω, 5W bias resistor on the controller's brake
driver output that would otherwise be necessary.
SL BRAKE FLTS
The seat lift brake faults parameter enables ("On") or disables ("Off ") the
brake coil open and shorted brake driver fault detection in seat lift mode.
The seat lift brake faults parameter is only active when the standard brake
faults parameter is also programmed On. If the standard brake faults parameter
is programmed Off, there will be no fault detection in seat lift mode even if
the seat lift brake faults parameter is programmed On.
Note: If you are installing the 1228 controller in an existing scooter system
that uses a brake disable relay in its seat lift circuit, you should program the
seat lift brake faults parameter Off. Systems designed to be used with the new
1228 do not require this second relay, which was required by earlier versions.

FAULT BEEP

The fault beep parameter enables the horn during controller faults, in order to
make the fault codes audible. It beeps only the fault codes; it does not precede
the fault code with a level-of-seriousness code (as does the status LED, with its
slow/fast flash preceding the fault code). If this audible alarm is not wanted,
the fault beep parameter should be programmed Off.

SEAT LIFT

DME scooter systems typically use the 1228 controller to drive the seat lift mo-
tor as well as the traction motor. The power path is determined by a relay that
routes motor drive power from the controller to either the traction motor or
the seat lift motor depending on whether the seat lift switch is open or closed;
see Figures 3a/3b. When the seat lift feature is active, the controller disables
the electromagnetic brake driver (i.e., sets the brake), and operates in Mode 1,
regardless of mode switch position.
The seat lift switch connector plugs into J9 (the 4-pin connector). The
controller transitions from traction mode to seat lift mode when the seat lift
switch is closed.
Curtis 1228 Manual,
Rev. F