ABB ACS 800 Series, Firmware Manual

Page: 196 / 340

Actual signals and parameters
196
35.06 MOT 2 TEMP FLT L Defines the fault trip limit for the motor 2 temperature measurement function.
The fault indication is given when the limit is exceeded.
-10 … 5000 ohm/°C
(PTC/Pt100) See 35.03 . -10 … 5000
35.07 MOT MOD
COMPENSAT Selects whether measured motor 1 temperature is used in the motor model
compensation.
NO The function is inactive. 1
YES The temperature is used in the motor model compensation.
Note: Selection is possible only when Pt 100 sensor(s) are used.
2
42 BRAKE CONTROL
Control of a mechanical brake. The function operates on a 20 ms time level.
For the function description, see section
Control of a mechanical brake on
page 112 .
42.01 BRAKE CTRL Activates the brake control function.
OFF Inactive 1
ON Active 2
42.02 BRAKE
ACKNOWLEDGE Activates the external brake on/off supervision and selects the source for the
signal. The use of the external on/off supervision signal is optional.
OFF Inactive 1
DI11 Active. Digital input DI11 is the signal source.
DI11 = 1: Brake is open.
DI11 = 0: Brake is closed. 2
DI12 Digital input DI11 is the signal source. See selection DI11 3
PAR 42.15 Signal source selected using Par. 42.15 BRAKE ACKN PTR. See selection
DI11.
4
42.03 BRAKE OPEN DELAY Defines the brake open delay (= the delay between the internal Open brake
command and the release of the motor speed control). The delay counter
starts when the drive has magnetised the motor and risen the motor torque to
the level required at the brake release (parameters
42.07 and 42.08 ).
Simultaneously with the counter start, the brake function energises the relay
output controlling the brake and the brake starts opening.
Note: If DI is used for brake acknowledge, the speed control is released on the
DI activation and does not wait for the complete time delay.
0.0 … 5.0 s Delay time. Set the delay time to the same value as the mechanical opening
delay of the brake specified by the brake manufacturer. 0 … 500
42.04 BRAKE CLOSE
DELAY Defines the brake close delay. The delay counter starts when the motor actual
speed has fallen below the set level (parameter
42.05 ) after the drive has
received the Stop command. Simultaneously with the counter start, the brake
control function de-energises the relay output controlling the brake, and the
brake starts closing. During the delay, the brake function keeps the motor live
preventing the motor speed from falling below zero.
Note: See also Par. 78.13 POS HYSTERISIS.
0.0 … 60.0 s Delay time. Set the delay time to the same value as the mechanical make-up
time of the brake (= operating delay when closing) specified by the brake
manufacturer. 0 … 6000
42.05 ABS BRAKE CLS
SPD Defines the brake close speed. See parameter 42.04 .
Note: See also Par. 78.13 POS HYSTERISIS.
0 … 1000 rpm Speed (an absolute value) 0 …10000
Index Name/Selection Description FbEq