Specifications

Curtis PMC 1223/33, 1225/35, 1227/37 Manual
A-1
APPENDIX A: GLOSSARY
APPENDIX A
GLOSSARY OF FEATURES AND FUNCTIONS
Acceleration rate
The acceleration rate is the time required for the controller to increase from 0 to
100% duty factor. The acceleration curve is controlled by the dynamic throttle
response, which is linear. The acceleration rate is programmable—see Section 3,
page 29.
Access rights
Each programmable parameter is assigned an access level—OEM or User—that
defines who is allowed to change that parameter. These levels are assigned by the
OEM when the controller is originally specified. Restricting parameter access to
the OEM reduces the likelihood of important performance characteristics being
changed by someone unfamiliar with the vehicle’s operation. In some cases, it may
be necessary to restrict a parameter’s access to ensure that it is not set to a value in
violation of TÜV regulations. The 1307-1101 User programmer can adjust only
those parameters with User access. The 1307-2101 OEM programmer can adjust
all the programmable parameters. Typically, OEMs supply 1307-1101 program-
mers to their dealers and distributors so that the User-access parameters (for
example, minimum speed and acceleration rate) can be set to each customer’s
liking in the store.
Anti-rollback
The anti-rollback feature prevents a vehicle that is traveling uphill in forward or
reverse from rolling back downhill when the throttle is released. It overrides the
brake delay and engages the electromagnetic brake as soon as the vehicle begins
to roll back down the incline.
Anti-roll-forward
The anti-roll-forward feature prevents a vehicle that is traveling downhill in
forward or reverse from rolling downhill excessively when the throttle is released.
It modifies the brake delay time proportional to the estimated speed at the time
the neutral throttle request is detected. This reduces “coasting” downhill when
the throttle is released during low speed operation.