6 DCP Interface
YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum 23
Bit 10 : Emergency Power: Recommended Travel Direction
The drive controller recommends the travel direction during emergency power for the next travel.
0 : Upwards (The counterweight is much heavier than the lift car)
1 : Downwards (The lift car is much heavier than the counterweight)
Bit 11 : Information: Temperature Limit "Motor"
If a certain threshold of the motor temperature is reached, the drive controller is signaling "temperature limit
motor." The information can be used to avoid an overheating of the motor.
0 : Actual motor temperature has not reached the temperature limit
1 : Actual motor temperature has reached the temperature limit
Note:
1. The motor must be equipped with a PTC.
2. The drive controller has to measure the motor temperature.
Appropriate countermeasures of the lift controller when reaching the temperature limit:
• The lift controller should increase the idle time in order to reduce duty cycle of the motor.
• In case of a lift group, another lift should get the preference for driving.
Unsuitable countermeasures of the lift controller when reaching the temperature limit:
• A reduction of the travel speed is unsuitable to counteract the overheating of the motor.
This functionality is configured by parameters L1-03 to L1-05 [PTC input].
Bit 12 : Information: Temperature Limit "Drive"
The drive controller is signaling "temperature limit drive", if a certain threshold of the drive temperature is
reached. The information can be used to avoid an overheating of the drive.
0 : Actual drive temperature has not reached the temperature limit
1 : Actual drive temperature has reached the temperature limit
Appropriate countermeasures of the lift controller when reaching the temperature limit:
• The lift controller should increase the idle time in order to reduce duty cycle of the drive.
• In case of a lift group, another lift should get the preference for driving.
• If the drive permits, reduce C6-02 [Carrier Frequency].
Unsuitable countermeasures of the lift controller when reaching the temperature limit:
• A reduction of the travel speed is unsuitable to counteract the overheating.
The alarm level can be set with parameter L8-02 [Drive overheat pre-alarm (oH)].
Bit 13 - 14 : Reserved
Currently not supported.
Bit 15 : Mode Identification
The Extended Status information will only be available if the mode identification bit is set.
0 : Braking Distance
1 : Extended Status
15-bit braking distance
The two data bytes are containing the actual 15-bit braking distance. The maximum braking distance is limited to
7FFF (Hex) (32767 mm).
While the lift car is stationary or just starting, the value for the braking distance is clamped at 7FFF (Hex). During
acceleration, the value increases from 0. During constant speed, the braking distance remains constant.
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