02 IMPORTANT SAFETY INFORMATION
3BHS206977 E01 REV H
ACS1000I AIR-COOLED
USER MANUAL
Figure 2-3: MCB opening timing diagram
In order to meet the stipulated safety requirements, ABB recommends one of the following:
- MCB is equipped with 2 independent opening coils
- MCB is equipped with an opening coil and an undervoltage coil for monitoring of the
control voltage
- Upstream protection coordination scheme is provided which uses the "breaker failure"
(ANSI 50BF) signal to automatically trip the upstream breaker, in case the MCB does
not open.
The upstream breaker must open within the maximum safety trip time after a failure
has occurred.
2.8.3
Maintenance recommendation
The MCB trip circuits should be checked annually
(1) Short-circuit occurs
(2) Open and or trip command is set at the drive control output
(3) No further damage to the drive
(4) No hazard to personnel
(5) Maximum protection trip time
(6) Maximum safety trip time
1
2
3
5
6
4
Summary of Contents for ACS1000i air-cooled
Page 1: ... MEDIUM VOLTAGE AC DRIVES ACS1000i air cooled User manual ...
Page 3: ...Contents ACS1000i air cooled User manual ...
Page 5: ... 01 About this manual 01 5 16 ...
Page 16: ......
Page 17: ... 02 Important safety information 02 17 28 ...
Page 28: ......
Page 29: ... 03 Power electronics and cabinet features03 29 56 ...
Page 57: ... 04 Control system 04 57 70 ...
Page 71: ... 05 Transportation storage and disposal05 71 78 ...
Page 78: ......
Page 79: ... 06 Mechanical installation 06 79 88 ...
Page 88: ......
Page 89: ... 07 Electrical installation07 89 104 ...
Page 105: ... 08 Commissioning 08 105 110 ...
Page 110: ......
Page 111: ... 09 Operation 09 111 124 ...
Page 125: ... 10 CDP control panel 10 125 148 ...
Page 149: ... 11 Preventive and corrective maintenance 11 149 172 ...
Page 173: ......