Parker 590 series Product Manual page 71

590 Series DC Digital Converter
If the field voltage is not correct, make the following checks:
9.1 Internally Supplied Field:
• Check that 3-phase is applied to terminals L1, L2 and L3 when the main contactor
is closed.
• Check that the 3 coding fuses on the power board are
healthy.
• The FIELD ENABLE parameter should be set to
ENABLE.
• With the FIELD ENABLE parameter in view, press the ↓ (DOWN) key. The
display changes to FLD CTRL MODE IS. Press the M key. Is this set to
VOLTAGE CONTROL or CURRENT CONTROL?
If set to VOLTAGE CONTROL, check the value
of the RATIO OUT/IN parameter. This should be
set to 90% maximum.
If set to CURRENT CONTROL, check the field
current calibration set-up, refer back to
"Calibration".
9.2 Externally Supplied Field:
• Check the voltage applied (externally fused) to terminals D1 and D2.
• Check the phasing of voltage applied to D1 and D2:
D1 must be connected directly or indirectly to the Red phase on main power
terminal L1.
D2 must be connected directly or indirectly to the
Yellow phase on main power terminal L2.
• The FIELD ENABLE should be set to ENABLE.
• With the FIELD ENABLE parameter in view, press the ↓
(DOWN) key. The display changes to FLD CTRL MODE
IS. Press the M key. Is this set to VOLTAGE CONTROL
or CURRENT CONTROL?
If set to VOLTAGE CONTROL, check the value
of the RATIO OUT/IN parameter. This should be set
to 90% maximum.
If set to CURRENT CONTROL, check the field current calibration set-up,
refer back to "Calibration".
10 Check that all six MMI LEDs are now illuminated. Note that any external interlocks
which affect the Enable input C5 will affect the state of the RUN LED.
11 If the STANDSTILL LOGIC parameter in the STANDSTILL menu at level 2 is
ENABLED, temporarily set it to DISABLED.
Operating the Converter
If the field volts are at maximum, check the field continuity. (The
field current may initially be lower than the rated value due to a
cold field.)
Check that 3-phase is applied to terminals L1, L2 and L3.
4-7
MMI Menu Map
1 SETUP PARAMETERS
2 FIELD CONTROL
FIELD ENABLE
MMI Menu Map
1 SETUP PARAMETERS
2 FIELD CONTROL
3 FLD VOLTAGE VARS
RATIO OUT/IN
MMI Menu Map
1 SETUP PARAMETERS
2 FIELD CONTROL
FIELD ENABLE
MMI Menu Map
1 SETUP PARAMETERS
2 FIELD CONTROL
3 FLD VOLTAGE VARS
RATIO OUT/IN
MMI Menu Map
1 SETUP PARAMETERS
2 STANDSTILL
STANDSTILL LOGIC