ROWAN ELETTRONICA S.R.L. - Via Ugo Foscolo, 20 - 36030 CALDOGNO (VICENZA) ITALY
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INSTRUCTIONS FOR THE REPLACEMENT OF PREVIOUS DRIVES WITH ACTUAL TYPE CODE 119/92
Drive code 119/92 replaces previous drives for the Rowan single phase motors type code 119 and code 120/121.
Remember that in any case code 119/92-2HP board is necessary for the single phase motor 2HP Mec 100.
Replacing drive 119 with drive 119/92:
With regard to power connections:
the wires previously connected to terminals 7 and 8 are to be shifted to terminals 11 and 12 of the code 119/92,
whereas the wires connected to terminals 5 and 6 are to be shifted to terminals 9 and 10.
With regard to control connections:
the tachometer wires that were previously connected to terminals 3 and 4 are to be connected to terminals 7 and
8 of the code 119/92, whereas potentiometer wires as follows: P- (OV) connected to terminal 2 is to be shifted to
terminal 6, and P+ connected to terminal 1 is to be shifted to terminal 5 of the code 119/92. For functioning as old
card cod. 119, microswitch S3 must be closed.
With new drive C119/92, speed regulation with 2 wire potentiometer is not linear but according to an exponential
curve which presents strong variations at slow speed and small variations at high speed. If one wishes to avoid this
behaviour and obtain a variation directly proportional to potentiometer variation, it is necessary to connect speed
potentiometer with 3 wires as indicated in connection diagram of code 119/92 and open microswitch S3.
With regard to control wires connected to the lateral terminal strip of code 119:
- the wire connected to terminal NEG is to be shifted to terminal 1 of the code 119/92
- the wire connected to terminal AR is to be shifted to terminal 2 of the code 119/92
- the wire connected to terminal INV.TACH. is to be omitted (not necessary for the C119/92)
- the resistor connected to terminal REG. COPPIA must be eliminated.
Close microswitch S1 (for the other microswitches refer to the section containing the description of the
microswitches).
If a potentiometer is connected to torque regulation terminals, reconnect it to code C119/92 with 3 wires to terminals
1 3 4 as from electrical drawing; in this case microswitch S2 must be closed.
The circled numbers in the electrical drawing designate the terminals in the code C119/92.
Reg. Coppia = Torque Regulation
Reg. Giri = Speed Regulation
Tachim.= Tachometer Generator
Linea = Mains Line
Negativo = Negative
Azz. Rampa = Ramp to zero setting
Inv. Tach. = Tachometer Inversion
