Instruction manual
11
6) .Connect field economy contact to TB1, 4-5, power and start the drive and adjust for
maximum rated armature voltage. Measure motor speed. The field current can be
reduced to increase speed but will result in decreased motor torque. Adjust the
armature voltage if a reduction in speed is necessary.
7) Stop the drive and place in Tachometer Feedback mode if necessary. Re-check
maximum speed and adjust with the armature voltage as required.
TP1 can be used to monitor the Field current (10v = 100% of J1 set value).
QUICK START - VARIABLE SUPPLY
(REFER TO FIG 4 page 22)
1) Make preparations to measure the armature voltage with a DC voltmeter.
2) Have a tachometer ready to measure the motor shaft or machine speed.
3) Connect a pot, between 2k and 20k ohms, on TB1- 1,2, & 3 as shown on the
silkscreen.
4) Pre-set pots and jumpers as follows:
On the FR1000-000, FR3500-000:
a) J3, CONTROL MODE, jumper to MAN position
b) P4, MAX FIELD CURRENT, full CCW
c) P3, MIN FIELD CURRENT, full CCW
d) J1, CURRENT RANGE, (Power board) to a position near base field current
e) Connect a wire jumper on TB1, 4-5 to take the place of a contact for Run (to switch
out of field economy)
f) TB1 pot full CW or for maximum field current
g) Other pots and jumpers not critical for initial startup
On the drive or Armature voltage control:
h) Place in “Armature Feedback” mode.
5) Power up the field supply with the armature supply off.
6) Adjust P4 to base, maximum, field current (on motor nameplate).
7) Start the drive and adjust to maximum rated, base speed, armature voltage.
8) While monitoring motor speed, slowly decrease the TB1, manual, pot until rated
extended speed or desired maximum speed is reached. Note this field current level.
9) Stop the motor (turn off the armature supply). Press MIN FIELD SET button. Adjust
P3 to the current for extended speed (step 8). Release the button. Reset P4 to base
current.
10) Connect the field economy contact to TB1, 4-5.
11) Turn on the motor and confirm the range of the TB1 pot to cover the speed range
of base speed to max speed.
12) TP1 can be used to monitor the field current (10v = 100% of J1 set value).