
50
Enertech Global
IOM, ZS/ZT Models
LED Status Indication
Specifications are subject to change without notice (03.09.2014)
9
The RSBS...SM28 shall try to softstart the compressor at 45AACrms current limit. Depending on the load requirement, the current limit will be gradually increased up to a
maximum of 80AACrms after which the RSBS will switch into bypass mode.
The RSBS SM29 shall try to softstart the compressor at 25AACrms current limit. Depending on the load requirement, the current limit will be gradually increased up to a
maximum of 40AACrms after which the RSBS will start to switch into bypass mode.
If ramping is not achieved after a maximum of 1 second, the Incomplete Ramp Alarm (5 flashes on red LED) will be triggered and the RSBS will enter into a recovery
mode for 5 mins. If, at the second consecutive attempt the RSBS raises again the Incomplete Ramp Alarm, then a manual user intervention to reset power on the RSBS
shall be required as this might indicate a real locked rotor condtion.
RSBS2332A2V22C24SM28, RSBS2325A2V22C17SM29
RSBS…SM28/ SM29 specific mode of operation
LED Status Indication
Flashing Sequence
Note: During recovery from an alarm condition, the red LED will flash at twice the normal flashing frequency between successive flashing cycles as shown above to indicate
that the softstarter is in recovery mode which recovery lasts for 5 minutes
** Monitored during bypass
*** Refer to note 6 in Mode of operation section
**** Refer to voltage dips and interruptions section for mode of operation
500ms
500ms
500ms
....
500ms
Recovery
Mode
1500ms
2000ms
Orange LED
Relay Contact
Condition
Action
Fully ON
1
11/12
Min. recovery time between starts and/or
recovery time between stop to start
Auto reset when minimum recovery
time elapses.
Red LED
Relay Contact
Condition
Action
2 flashes
11/14
Undervoltage (Ue < 180VAC)****
Auto reset with 5 mins recovery **
3 flashes
11/14
Overcurrent (>80A for 1 sec.)
Auto reset with 5 mins recovery
4 flashes
11/14
Relay protection
Auto reset with 5 mins recovery ***
5 flashes
11/14
Incomplete ramp
Auto reset with 5 mins recovery
N/A
11/12
Supply phase loss
Physical check
N/A
11/12
Idle state
N/A
11/12
Ramping state
N/A
11/12
Bypass mode
Green LED
Relay Contact
Condition
Action
Flashing
11/12
Power supply alarm
Contact Carlo Gavazzi
representative
Fully ON
11/12
Idle state
RSBS waiting for
control signal to start
SECTION 8: SOFT START CONTROLS
Содержание ZS.
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