Running Uniploar motors as Bipolar motors.

Hi all,

I have some Pacific Scientific 8 wire unipolar motors rated at 5.47 volts at
.489 amps. I am currently running these at 38 volts 1 amp in a parallel
configration on a Bipolar Chopper driver. The motors don't seem to be
getting hot, only slightly warm to the touch. Is this current setting Ok or
am I asking for trouble?

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia