Manual
Curtis 1243GEN2 Manual, Rev. B
3
✓ Linear cutback of regenerative braking current during overvoltage
✓ High pedal disable (HPD) and static return to off (SRO) interlocks
prevent vehicle runaway at startup
✓ Internal and external watchdog circuits ensure proper software operation
✓ Fully protected inputs and short-circuit protected output drivers.
Curtis Model 840 Spyglass Display [optional]
✓ 3-wire serial interface
✓ Sequences between hourmeter, BDI, and error displays
✓ Single alphanumeric, non-backlit, 8 character, 5 mm LCD display for
hourmeter, BDI, and fault messages
✓ Display updated by dedicated unidirectional serial port
✓ Available in 52 mm round case, DIN case, and as a bare board, each
with an 8-pin Molex connector; cases feature front seal to IP65 and
rear seal to IP40; shock and vibration protection to SAE J1378
✓ Operating temperature range -10°C to 70°C; models with lower
temperature ratings available for freezer applications
Familiarity with your Curtis controller will help you install and operate it prop-
erly. We encourage you to read this manual carefully. If you have questions,
please contact the Curtis office nearest you.
1 — OVERVIEW