Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
APPENDIX D
pg. 155
APPENDIX D
CONTROLLER SPECIFICATIONS
Table D-1 Specifications: 1239E and 1269E Controller Models
PWM operating frequency: 10 kHz
Maximum encoder frequency: 10 kHz
Maximum controller output frequency: 450 Hz
Dielectric withstand voltage to chassis: 1500 V ac
Storage ambient temperature range: –40°C to 95°C (–40°F to 203°F)
Operating ambient temperature range: –40°C to 50°C (–40°F to 122°F)
Thermal cutback: Controller linearly reduces maximum current limit with an internal heatsink temperature
from 85°C (185°F) to 95°C (203°F); complete cutoff occurs above 95°C (203°F) and
below –40°C (–40°F)
Design life: 5,000 hours
Operating duration at maximum current: 1 minute minimum, with initial temperature of 25°C and no additional external heatsink
Package environmental rating: IP65; compliance requires AMPSEAL 35-pin connector header
(1269E: IP67 HVIL, and Amphenol PowerLok)
Weight: 6.82 kg (15.0 lbs)
1269E: 10.0kg (22.2 lbs) Aluminum case and base.
Dimensions, W×L×H: 275 × 232 × 85 mm (10.8" × 9.1" × 3.4")
1269E: 356 × 237 × 127 mm (14.0" × 9.33" × 5.0")
EMC: Designed to the requirements of UN ECE/324 Addendum 9 Regulation 10 Revision 4 (6
March 2012)
Safety: Designed to the requirements of EN1175 and EN13849-1 Category 2
Note: Regulatory compliance of the complete vehicle system with the controller installed is the responsibility of the OEM.
1239E-65xx 1239E-76xx 1239E-85xx 1269E-76xx
Nominal high power battery voltage (V) 60–84 72–108 72–144 72–108
B+ brownout voltage (V) 30 30 30 30
B+ minimum voltage (V) 33.6 50.4 50.4 50.4
B+ maximum voltage (V) 105 120 170 120
Power circuit capacitance (mF) 17.2 14.5 9.7 14.5
Nominal low power system voltage (V) 12
KSI brownout voltage (V) 8.0
KSI minimum voltage (V) 8.4
KSI maximum voltage (V) 20.0
Regen current limit (%) 100 70 100
Brake current limit (%) 100 70 100
Interlock brake current limit (%) 100 70 100
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