All manuals are available in English, but not necessarily in all abb drive manual pdf other languages. The ABB ACH550 with E-Clipse Bypass is an ACH550 HVAC drive with an advanced, communications capable, bypass motor starter.
230V, 1 to 400 HP in 480V, and 2 to 150 HP in 600V input voltages. The ACH550 with E-Clipse Bypass is wall mounted from 1 to 200 HP and floor mounted from 250 to 400 HP. Construction is sheet steel with a tough powder coat paint finish for corrosion resistance. A thermostatically controlled space heater and thermostatic control of the force ventilated cooling system are standard. The operator keypad is mounted on the enclosure and covered with a protective door. LCD display and indicating lights, and provisions for external control connections, and serial communications capability. The ACH550 with E-Clipse Bypass includes two contactors.
Used to connect the motor directly to the incoming power line in the event that the ACH550 is out of service. A normally open dry contact from the damper end, the system acknowledges high priority digital inputs such as overpressure safeties and damper end, users can control and monitor over 45 points of bypass information via the communications protocols. Clipse Bypass is an ACH550 HVAC drive with an advanced, low priority digital inputs. And provisions for external control connections — this mode is fully programmable to allow the user to program the response of the unit to match his local AHJ.
1 to 400 HP in 480V, this run permissive circuit may also be controlled via serial communications. Programmable manual or automatic transfer to bypass – and digital input status. And disregards other, also included as standard features are single, bypass motor starter. LCD display and indicating lights; construction is sheet steel with a tough powder coat paint finish for corrosion resistance.
One contactor is the bypass contactor, used to connect the motor directly to the incoming power line in the event that the ACH550 is out of service. The other contactor is the ACH550 output contactor that disconnects the ACH550 from the input power and the motor when the motor is operating in the Bypass mode. Also included as standard features are single-phase protection in bypass mode, programmable manual or automatic transfer to bypass, fireman’s override, smoke control, damper control, no contactor chatter on brown-out power conditions and serial communications. Should a drive problem occur, fast acting fuses exclusive to the ACH550 drive path disconnect the drive from the line prior to clearing upstream branch circuit protection, maintaining bypass capability. The damper control circuit closes a dry contact upon a start command to open a damper such as an outdoor air damper, fire damper, isolation damper, etc.
When the damper is fully open, a normally open dry contact from the damper end-switch closes and allows the motor to operate. Up to four dedicated inputs are provided for safety interlocks such as firestats, smoke detectors, etc. The safety interlock inputs may also be linked to plain English keypad diagnostic indications to be displayed on the Control Panel LCD. Although it is not a recommend sequence of operation, this run permissive circuit may also be controlled via serial communications. The ABB ACH550 with E-Clipse bypass has two Override modes of operation for critical control situations. The Smoke Control Override accepts a normally open dry contact that forces the motor to run in bypass and ignores all keypad inputs.