G2ASMA20 Pump-Alternator - GAMMA series E1ZM Alternated access of two pumps or other devices Even distribution of duty Parallel duty at high demand Operation using 1 or 2 input signals (two modes of operation) Timing offset of the two loads to avoid water hammer effcects Supply voltage selectable via TR2 power modules 2 separate change over relays for device control Width 22.5mm Industrial design Technical data 1. Function 6. Output circuit One of two redundant motors will operate on demand 2 potential free change over contacts signalised by input Y1. Rated voltage: 250V AC Successive requests will operate the motors in an alternating Switching capacity (distance <5mm): sequence (sharing the duty between the devices). 750VA (3A / 250V) On demand both devices (pumps) will operate in parallel: Switching capacity (distance >5mm): 1250VA (5A / 250V) Mode A (parallel operation by separate input signal): Fusing: 5A fast acting 6 Input Y2 initiates parallel operation. Without signal at input Y2, Mechanical life: 20x10 operations 5 only one single motor will operate at each request. Electrical life 2x10 operations Mode B (parallel operation by timing): at 1000VA resistive load If an operation request on input Y1 exceeds the ajdusted delay, Switching frequency: max. 60/min at 100VA at resistive load the unit will start the second motor for parallel operation. max. 6/min at 1000VA at resistive load according to IEC 947-5-1) 2. Time ranges Over-voltage category: III (according to IEC 60664-1) Adjusment range rated surge voltage: 4kV t1 (for parallel operation) 2s 5min (use for mode B only) t2 (offset timing) 2s fixed 7. Control inputs Y1 operation request: activation by link Y1-Y3 3. Indicators Y2 parallel operation: activation by link Y2-Y3 (mode A only) Green LED U/t ON: indication of supply voltage Potential free: yes, seperated from supply input Green LED U/t flashing: indication of time periode t1 or t2 and output circuit by basic insulation Red LED Failure: irregular input Y2 is activ while Y1 is off Loadable: no Yellow LED Rel. 1 ON/OFF: indication of relay output Rel. 1 Control voltage: 10V max. Yellow LED Rel. 2 ON/OFF: indication of relay output Rel. 2 Schort circuit current: 1mA max. Wiring length: 10m max. 4. Mechanical design Coltrol pulse length : 50ms min. Self -extinguishing plastic housing, IP rating IP 40 Mounted on DIN-rail TS 35 according to EN 50022 8. Accuracy Mounting position : any Adjustment accuracy (t1): 5s in the Range up to 30s Shockproof terminal connection according to VBG 4 (PZ1 required) 30s in the Range above 30s IP rating IP20 Repetition accuracy: <5% of set value Tightening torque: 1 Nm max. Terminal capacity: 9. Ambient conditions 1 x 0.5 bis 2.5mm2 with/without multicore cable end Ambient temperature: -25 to +55C (according to IEC 68-1) 1 x 4mm2 without multicore cable end Storage temperature: -25 to +70C 2 x 0.5 bis 1.5mm2 with/without multicore cable end Transport temperature: -25 to +70C 2 x 2.5mm2 flexible without multicore cable end Relative humidity: 15% to 85% (according to IEC 721-3-3 Klasse 3k3) 5. Input circuit Pollution degree: 3 (according to IEC 60664-1) Supply voltage: Vibration resistance: 10 to 55 Hz 0.35mm 12 to 400V AC terminals A1-A2 (galvanically separated) (according to IEC 68-2-6) selectable by powermodule typeTR2 Shock resistance: 15g 11ms (according to IEC 68-2-27) Tolerance: according to specification of power module Rated frequency: according to specification of power module Rated consumption: 2VA (1.5W) Duty cycle: 100% Reset time: 500ms Residual ripple for DC: - Drop out voltage: > 30% of nominal supply voltage Overvoltage category: III (according to IEC 60444-1) Rated surge voltage: 4kV 654 Version 04/05 Subject to alternations and errors nderungen und Irrtmer vorbehalten Subject to alternations and errors nderungen und Irrtmer vorbehalten G2ASMA20 Functions The Pump-Alternator is sensitive to one (mode B) or two (mode A) digital input signals. Each of the two output relays activates one of the two devices (usually pumps or motors) driven. The two outputs (Rel.1 and Rel. 2), are equally configured and interchangeable. In case of request for operation (Y1-Y3 linked by external contact) one of the output relays energises as long as the signal persists on input (Y1). Next time there is a request for operation the alternate output operates in the same manner. This way both connected devices (pumps or motors) will share load. The information about, which output has done the first cycle after a power reset, is stored in a non-volatile memory. Next time after a power reset the other output will do the first cycle. There is no definite delivery status about which of the two outputs will operate at the first occasion. Mode and time setting can be done with a screwdriver at the front of the G2ASMA20. Mode A (parallel operation triggered by input Y2) In this mode both outputs are activated in parallel, if the U input for parallel operation (Y2-Y3) is engaged in addition Y1 to the contact for operation request (Y1-Y3). Y2 Mode If both inputs are activated or deactivated simultaneously, LED U/t the output relays will be activated or deactivated with a A LED F fixed timing offset of 2 seconds to avoid water hammer Rel. A effects and excessive electrical load peaks. Rel. B Without activating the input for parallel operation the two outputs are activated one by one only, but never in t2 t2 t2 t2 parallel. Mode B (parallel operation by timing) In this mode the timing dial is set to any position unlike U theFunction setting. Y1 An uninterrupted operation request that is longer request Y2 Mode than the adjusted delay t1 will activate the second output LED U/t B relay for parallel operation. At the end of a period of LED F parallel operation the output added after the delay t1 will Rel. A drop immediately. The other relay, active from begin of Rel. B the request, will drop with offset of the fixed delay t2. <t1 <t1 t1 t2 t1 t2 Function control by supplied power With a link wired at the input for operation request (Y1- U Y3) alternate operation is activated by supplying the Y1 auxiliary voltage to the unit. Y2 Mode Using the Mode B setting on the dial (any time setting) LED U/t the second relay will activate after the set delay for A LED F parallel operation (t1). When supply is disconnected, both Rel. A reays drop immediately. There is no parallel operation in Rel. B mode A as it is not recommended to use the contact Y2 in case of control by supplied power. U Y1 Y2 Mode LED U/t B LED F Rel. A Rel. B <t1 <t1 <t1 t1 t1 <t1 The highest priority is on the input for parallel operation (link Y2-Y3). If activated it will cause operation of both outputs anyway, with the fixed offset delay t2 only. The error indication on the unit will be illuminated if this input is active, unless there is a signal for the operation request input (Y1-Y2). (A defect sensor is assumed in this case) The input parallel operation (Y2-Y3) activated when the unit is set up for mode B will cause an error indication in any case. The error indication will stay visible even if the proper correlation of operation request (Y1-Y2) and request for parallel operation (Y2-Y3) is re-established. (The unit falls back to normal operation in this case.) The error message is cleared by interrupting supply voltage.