
Drive Controlled Pump
Parker Hannifin Corporation
Hydraulics Group
DCP Manual innen A4 UK.indd 06.11.17
55
Manual
ID
Trip Name
Possible Reason for Trip
1
OVER VOLTAGE
The drive internal dc link voltage is too high:
· The supply voltage is too high
· Trying to decelerate a large inertia load too quickly; DECEL TIME time too short
The brake resistor is open circuit
To help prevent this trip, enable the DC Link Volts Limit feature
2
UNDER VOLTAGE
DC link low trip:
· Supply is too low/power down
3
OVER CURRENT
The motor current being drawn from the drive is too high:
· Trying to accelerate a large inertia load too quickly; ACCEL TIME time too short
· Trying to decelerate a large inertia load too quickly; DECEL TIME time too short
· Application of shock load to motor
· Short circuit between motor phases
· Short circuit between motor phase and earth
· Motor output cables too long or too many parallel motors connected to the drive
· FIXED BOOST level set too high
4
STACK FAULT
Stack self protection
· Instantaneous overcurrent detected by the power stack. Refer to OVERCURRENT in this ta-
ble.
· Instantaneous over voltage event. Refer to OVER VOLTAGE in this table
5
STACK OVER CURRENT
The motor current exceeded the capabilities of the power stack.
· Instantaneous overcurrent detected by the power stack. Refer to OVERCURRENT in this ta-
ble.
6
CURRENT LIMIT
V/Hz mode only: If the current exceeds 200% of stack rated current for a period of 1 second,
the drive will trip. This is caused by shock loads
7
MOTOR STALL
The motor has stalled (not rotating) Drive in current limit >200 seconds:
· Motor loading too great
· FIXED BOOST level set too high
8
INVERSE TIME
A prolonged overload condition, exceeding the Inverse Time allowance, has caused the trip:
· Remove the overload condition
9
MOTOR I2T
Only for PMAC Motor: A prolonged load condition, exceeding the motor rated current, has
caused the trip. The estimated motor load has reached a value of 105%
10
LOW SPEED I
The motor is drawing too much current (>100%) at zero output frequency:
· FIXED BOOST level set too high
11
HEATSINK OVERTEMP
Drive heatsink temperature too high
· The ambient air temperature is too high
· Poor ventilation or spacing between drives
· Check heatsink fan is rotating
12
INTERNAL OVERTEMP
Processor temperature or ambient temperature within the power stage too high
· The ambient temperature in the drive is too high
13
MOTOR OVERTEMP
The motor temperature is too high, (required IO Option card)
· Excessive load
· Motor voltage rating incorrect
· FIXED BOOST level set too high
· Prolonged operation of the motor at low speed without forced cooling
· Break in motor thermistor connection
14
EXTERNAL TRIP
The external (application) trip input is high:
· Refer to the application description to identify the source of the signal
15
BRAKE SHORT CCT
External dynamic brake resistor has been overloaded:
· The external dynamic brake has developed a short circuit.
· Wiring fault
16
BRAKE RESISTOR
External dynamic brake resistor has been overloaded:
· Trying to decelerate a large inertia too quickly or too often
17
BRAKE SWITCH
Internal dynamic braking switch has been overloaded:
· Trying to decelerate a large inertia too quickly or too often
18
LOCAL CONTROL
Keypad has been disconnected from drive whilst drive is running in Local Control:
· GKP accidentally disconnected from drive