Product manual

Wiring the Drive 05/2008 Danaher Motion
44 S200-VTS Product Manual
6.4.3 Control Voltage
The control voltage range for normal operation is +10 VDC to +90 VDC. The control voltage
can either be wired to the bus voltage so one supply can power the drive, or from a separate
supply. Separately powering the control from the bus allows the bus to be powered down for
safety while drive status and fault information remain available.
NOTE: Control and I/O can share a single +10 VDC to +30 VDC power supply.
NOTE
Do NOT allow the Control Voltage to exceed + 90 VDC as it can
damage the drive.
6.4.4 Grounding
Provide safety isolation with the external bus and control supplies from the power line.
NOTE
The drive cannot be powered from an electrically Hot supply
as it does not contain an isolation barrier.
The Ctrl and Bus voltages and non-opto coupled I/O grounds (I/O RTN) are commoned inside
the drive. The Ctrl and Bus power supplies share a ground pin (Bus/Ctrl Gnd). Join and connect
to the negative terminals of the Ctrl and Bus power supplies. The I/O RTNs are normally
connected to the signal ground of the system. (Some of the I/O is opto coupled and have
separate returns. Be sure to thoroughly review this document for details.)
The power supply negative terminal should be grounded somewhere in the cabinet. The
chassis should also be grounded. In normal operation there should be no significant voltage
between ground and the Bus/Ctrl Gnd and I/O RTNs.
NOTE
The maximum voltage allowed between Bus/Ctrl Gnd and
chassis is 100 VDC.
6.4.5 Bus Capacitance
There is a minimum requirement on the output capacitance of the bus power supply for the
S200 DC Input Drives. This capacitor is needed to absorb energy during motor deceleration
and motor disable. It also helps provide energy during motor acceleration. For multiple S200
drives operated from one supply, the recommendation is to increase the capacitance according
to the number of drives. For example, for four 6 A / 18 ARMS DC S200 drives powered from
one 75 VDC supply, the recommended minimum bus output capacitance of the supply is 4 x
4,000 µf = 16,000 µf. Bus capacitor voltage rating should be 100 V. Bus capacitor type is
aluminum electrolytic.
6.4.6 Bus Switching and Fusing
Do NOT put E-Stop switches or contactors between the drive bus pin (J1-3) and the power
supply bus capacitor. There is a risk of damage to the drive if the bus is disconnected from the
power supply capacitor when the drive is enabled. The motor does not need to be rotating to
regenerate energy. The motor windings store magnetic energy that regenerates back to the
supply when the drive is disabled.
E-stop switches can safely be located in series with the primary winding of a step down
transformer. If individual axis E-Stop switches are required, connect a local (unswitched)
capacitor (1,000 µf, 100 V) across the drive bus terminals (J1-3 to J1-2). If the buses of
individual drives are to be fused, select the fuse type and rating for high margin.
S20330 (3 amp) S20630 (6 amp)
7 A, Slo-Blo (Bussmann MDA-7) 15 A, Slo-Blo (Bussmann MDA-15)